# Glossary of Woodgas & Automotive Acronyms
**URL:** http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405
**Category:** General Discussion
**Created:** [August 14, 2017, 2:47pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405 "2017-08-14T14:47:59Z")
**Posts on this page:** 15
**Page:** 1
### Author:  [@ramosedmundo](http://forum.driveonwood.com/u/ramosedmundo)
#### Post date: [August 14, 2017, 2:47pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/1 "2017-08-14T14:47:59Z")
Hi Cris:
I am suggesting some sort of “Glossary”. This may be technical/ language acronyms and/or American slang words and other. This topic could mainly be aimed to beginners (like me) and the rest of the world for a better understand of this forum.
* * *
_This is now an editable post. You may add your own entry by clicking “Edit”._
### Gasification.
**CHP** : Combined Heat & Power.
**FEMA** (F.E.M.A, fema): Federal Emergency Management Agency. Usually refers to a
gasifier they created, stratified downdraft design.
**GEK** : Gasifier Experimenter’s Kit (All Power Labs).
**MEN** : Mother Earth News (a magazine. Sometimes refers to a gasifier they designed).
**TDR** : Turn Down Ratio.
**TLUD** : Top Lit Up Draft (refers to a stove).
### Automotive/Engine.
**B/S engine** : Briggs & Stratton engine (small engine).
**ICE** (IC Engine): Internal Combustion Engine.
**MIL** : Malfunction Indicator Light.
**CEL** : Check Engine Light. Same as MIL.
**SES** : Service Engine Soon light. Same as MIL.
#### Fueling / Combustion.
**AFR** : Air / Fuel Ratio.
**EFI** : Electronic Fuel Injection.
**Lambda** : value for total combustion of fuel.
**MAF** : Mass Air Flow sensor.
**MPFI** : Multiport Fuel Injection.
**PCV valve** : Positive Crankcase Ventilation system/valve.
**SEFI** (SFI): Sequential Electronic Fuel Injection. Each individual four-stroke cylinder only
getting just the right amount of gasoline injected on only it’s intake stroke. Versus bank injected on every down stroke; and throttle body all-strokes pulsed injected.
**TBI** : Throttle Body fuel Injection.
**WOT** : Wide Open Throttle (full speed).
#### Exhaust
**CAT** (cat): Catalytic converter.
**EGR** : Exhaust Gas Recirculation. Redirecting engine exhaust through the air intake.
**EGT** : Exhaust Gas Temperature. Measured for performance.
#### Automotive Sensors
**BARO** : Barometric air reference sensor. Determines atmospheric pressure.
**CTS** : Coolant Temperature Sensor.
**IAC** : Idle Air Control valve.
**IAT** : Intake Air Temperature.
**MAF** : Mass Air Flow.
**MAP** : Manifold Absolute Pressure.
**MAT** : Manifold Air Temperature (same as IAT).
**TPS** : Throttle Position Sensor.
**TS** : Temperature Sensor.
#### Automotive Electronics.
**BTC** : **B** efore **T** op dead **C** enter of a piston.
**ECU** : Electronic Control Unit, or Engine Control Unit.
**ECM** : Electronic Control Module, or Engine Control Module.
**PCM** : Powertrain Control Module.
**TCM** : Transmission Control Module.
**OBD1** : On Board Diagnostics version 1 (automotive computer).
**OBD2** : On Board Diagnostics version 2 (automotive computer).
### Electrical
**PWM** : Pulse Width Modulation. Refers to a system of limiting current but not voltage, used to control motors etc.
### Building Materials.
**AWG** : American Wire Gage. The higher the number the thinner the wire or sheet metal thickness.
**EMT** : Electrical Metallic Tubing. Is a thin wall electrical conduit.
**NPT** : National Piping Thread (American standard pipe thread system).
**PPI** : **P** ores **P** er **I** nch, it is a measure of the filtering capacity of a filter.
**RTV sealant** : Room Temperature Vulcanization (silicon sealant).
**S.S**.: Stainless Steel.
### Sayings / Slang Words.
**BBB** : Burn Baby Burn.
**B.S.** : **B** ull **S** hit (is a lie or a gross exageration)
**BTW** : **B** y **T** he **W** ay.
**DIY** : Do It Yourself.
**DOW** : Drive On Wood.
**HWWT** : Have Wood Will Travel.
**KISS** : Keep it Simple Stupid.
**RTFM** : Read The F\*\*\*\*ing Manual.
**SWEM** : Smile With Every Mile (driven on wood).
**W.A.G.** : **W** ild **A** ss **G** uess.
**YMMV** : Your Mileage May Vary (a disclaimer popularized by the EPA).
---
### Author:  [@SteveUnruh](http://forum.driveonwood.com/u/SteveUnruh)
#### Post date: [August 14, 2017, 6:08pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/2 "2017-08-14T18:08:25Z")
Good Morning EddyR.
I’d thought there was already one here? Look in the liberary section, and no.
There is a terminology glossary in the “Have Wood Will Travel”, book.
So good idea for the forum section here too.
I will add:
F.E.M.A (or FEMA, fema) a US Government emergency use only gasifier system authorized and published out made of hardware store garbage cans for limited use only.
SEFI: Sequential electronic gasoline fuel injection. Each individual four-stoke cylinder only getting just the right amount of gasoline injected on only it’s intake stroke. Versus bank injected on every down stroke; and throttle body all-stokes pulsed injected. The gasoline fuel for SEFI MUST be super clean filtered to not clog the very tiny injector nozzle holes.
ECM, PCM, ECU: all different manufactures names, over the decades for the ELECTRONIC calculating brain for engine spark, fuel and even transmission commanded OUT controlling.
EGO/HEGOLamba/O2, BARO, TP, TPS, MAP, MAS/AF: all primary and secondary duty sensors in an electronic fuel injection system.
Ha! Ha! Calling bullshit on someone is usually not capitalized. Just bs, or b.s. to be polite.
Regards
tree-farmer Steve unruh
---
### Author:  [@ramosedmundo](http://forum.driveonwood.com/u/ramosedmundo)
#### Post date: [August 14, 2017, 10:26pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/3 "2017-08-14T22:26:48Z")
Hi Steve:
Thank’s for the reply.
I already bought, paid for that book and the shipping, but never got it. Not Cris fault.
Regarding the “Glossary” I will order it alphabetically and add your suggestions:
> **expand Glossary**
>
> **TECH WORDS**.
> **B/S** engine: Briggs & Stratton engine (referes to a small engine).
> **ECM, PCM, ECU** : all different manufactures names, over the decades for the ELECTRONIC calculating brain for engine spark, fuel and even transmission commanded OUT controlling.
> **EFI** : Electronic Fuel Injection system.
> **EGO/HEGOLamba/O2, BARO, TP, TPS, MAP, MAS/AF** : all primary and secondary duty sensors in an electronic fuel injection system.
> **F.E.M.A** (or FEMA, fema) a US Government emergency use only gasifier system authorized and published out made of hardware store garbage cans for limited use only.
> **IC** engine: Internal Combustion engine.
> **MIL** : Malfunction Indicator Light.
> **NPT** : National Piping Thread (refrens to an American standard pipe thread system).
> **PWM** : Pulse Wide Modulation (refers to a system that adjusts electric motor speed).
> **RTV** sealant: Room Temperature Vulanization sealant (refers to silicon sealant).
> **SEFI:** Sequential electronic gasoline fuel injection. Each individual four-stoke cylinder only getting just the right amount of gasoline injected on only it’s intake stroke. Versus bank injected on every down stroke; and throttle body all-stokes pulsed injected. The gasoline fuel for SEFI MUST be super clean filtered to not clog the very tiny injector nozzle holes.
> **TLUP** : Top Lit Up Draft (refers to a stove)
> **SLANG WORDS**
> **bs or b.s**.: Bull Shit (refers to something that doesn’t seems to be true)
---
### Author:  [@SteveUnruh](http://forum.driveonwood.com/u/SteveUnruh)
#### Post date: [August 14, 2017, 11:48pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/4 "2017-08-14T23:48:57Z")
CAT or cat: engine exhaust system catalytic converter
SES light: Service Engine Soon warning light. Same as MIL.
Slangs:
YMMV: “Your Mileage May Vary”. USofA Government published statement for their vehicle fuel mileage ratings. These are in-lab data collected from emissions certification testing, then calculated. So . . . you are so, so full of shit, un-real-world optimistic.
Drive On Wood site social acronyms:
SWEM: Smile with every mile (driven on wood)
Many more but my brain is tired out now.
Regards
tree-farmer Steve Unruh
---
### Author:  [@ramosedmundo](http://forum.driveonwood.com/u/ramosedmundo)
#### Post date: [August 15, 2017, 12:26am UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/5 "2017-08-15T00:26:05Z")
Thank’s again Steve for your input, so I am adding it to this Glossary
> **expand Glossary**
>
> **TECH WORDS.**
> B/S engine: Briggs & Stratton engine (referes to a small engine).
> CAT or cat: engine exhaust system catalytic converter
> ECM, PCM, ECU: all different manufactures names, over the decades for the ELECTRONIC calculating brain for engine spark, fuel and even transmission commanded OUT controlling.
> EFI: Electronic Fuel Injection system.
> EGO/HEGOLamba/O2, BARO, TP, TPS, MAP, MAS/AF: all primary and secondary duty sensors in an electronic fuel injection system.
> F.E.M.A (or FEMA, fema) a US Government emergency use only gasifier system authorized and published out made of hardware store garbage cans for limited use only.
> IC engine: Internal Combustion engine.
> MIL: Malfunction Indicator Light.
> NPT: National Piping Thread (refrens to an American standard pipe thread system).
> PWM: Pulse Wide Modulation (refers to a system that adjusts electric motor speed).
> RTV sealant: Room Temperature Vulanization sealant (refers to silicon sealant).
> SEFI: Sequential electronic gasoline fuel injection. Each individual four-stoke cylinder only getting just the right amount of gasoline injected on only it’s intake stroke. Versus bank injected on every down stroke; and throttle body all-stokes pulsed injected. The gasoline fuel for SEFI MUST be super clean filtered to not clog the very tiny injector nozzle holes.
> SES light: Service Engine Soon warning light. Same as MIL.
> TLUP: Top Lit Up Draft (refers to a stove).
> WOT: Wide Open Trotlle (full speed)
> YMMV: “Your Mileage May Vary”. USofA Government published statement for their vehicle fuel mileage ratings. These are in-lab data collected from emissions certification testing, then calculated. So . . . you are so, so full of shit, un-real-world optimistic.
>
> **SLANG WORDS**
> bs or b.s.: Bull Shit (refers to something that doesn’t seems to be true).
> SWEM: Smile with every mile (driven on wood)
---
### Author:  [@Chris](http://forum.driveonwood.com/u/Chris)
#### Post date: [August 15, 2017, 3:13am UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/6 "2017-08-15T03:13:48Z")
Hmm, I did miss this page when we moved the site. Using the amazing tool, The Wayback Machine at [archive.org](http://archive.org), I found the old page.
[https://web.archive.org/web/20150210195409/http://driveonwood.com/learn/abbreviations-and-acronyms](https://web.archive.org/web/20150210195409/http://driveonwood.com/learn/abbreviations-and-acronyms)
Also the automotive glossary:
[https://web.archive.org/web/20140703193957/http://driveonwood.com/learn/automotive-glossary](https://web.archive.org/web/20140703193957/http://driveonwood.com/learn/automotive-glossary)
When I get some time I’ll put this back in the library.
---
### Author:  [@k\_vanlooken](http://forum.driveonwood.com/u/k_vanlooken)
#### Post date: [August 15, 2017, 1:07pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/7 "2017-08-15T13:07:12Z")
> [@ramosedmundo](#):
>
> TLUP: Top Lit Up Draft (refers to a stove).
isn’t it TLUD stove ?
bs also stand for the brown mass behind a male cow ?
or Big Stud in my case 😁
ECU = Electronic Control Unit
Lambda = value for total combustion of fuel
MAP = manifold absolute pressure
TS = Temperature Sensor
AFR = Air To Fuel ratio
ECM = Electronic Control Module
TPS = throttle position sensor
EGR = exhaust gas return
EGT = exhaust gas Temperature
RTFM = Read The F\*\*\*\*ing Manual
---
### Author:  [@ramosedmundo](http://forum.driveonwood.com/u/ramosedmundo)
#### Post date: [August 15, 2017, 1:59pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/8 "2017-08-15T13:59:07Z")
Thank’s Koen for your correction, you are right is TLUD and thank’s for the input, so I am adding it to this Glossary
> **expand Glossary**
>
> **TECH WORDS.**
> AFR = Air To Fuel ratio.
> B/S engine: Briggs & Stratton engine (referes to a small engine).
> CAT or cat: engine exhaust system catalytic converter.
> ECM, PCM, ECU: all different manufactures names, over the decades for the ELECTRONIC calculating brain for engine spark, fuel and even transmission commanded OUT controlling.
> ECM = Electronic Control Module.
> ECU = Electronic Control Unit.
> EFI: Electronic Fuel Injection system.
> EGO/HEGOLamba/O2, BARO, TP, TPS, MAP, MAS/AF: all primary and secondary duty sensors in an electronic fuel injection system.
> EGR = Exhaust Gas Return.
> F.E.M.A (or FEMA, fema) a US Government emergency use only gasifier system authorized and published out made of hardware store garbage cans for limited use only.
> IC engine: Internal Combustion engine.
> Lambda = value for total combustion of fuel.
> MAP = Manifold Absolute Pressure.
> MIL: Malfunction Indicator Light.
> NPT: National Piping Thread (refrens to an American standard pipe thread system).
> OBD2: On Board Diagnostic 2 (auto computer)
> PWM: Pulse Wide Modulation (refers to a system that adjusts electric motor speed).
> RTV sealant: Room Temperature Vulanization sealant (refers to silicon sealant).
> SEFI: Sequential electronic gasoline fuel injection. Each individual four-stoke cylinder only getting just the right amount of gasoline injected on only it’s intake stroke. Versus bank injected on every down stroke; and throttle body all-stokes pulsed injected. The gasoline fuel for SEFI MUST be super clean filtered to not clog the very tiny injector nozzle holes.
> SES light: Service Engine Soon warning light. Same as MIL.
> TLUD: Top Lit Up Draft (refers to a stove).
> TS = Temperature Sensor.
> TPS = Throttle Position Sensor.
> WOT: Wide Open Trotlle (full speed).
> YMMV: “Your Mileage May Vary”. USofA Government published statement for their vehicle fuel mileage ratings. These are in-lab data collected from emissions certification testing, then calculated. So . . . you are so, so full of shit, un-real-world optimistic.
>
> **SLANG WORDS**
> bs or b.s.: Bull Shit (refers to something that doesn’t seems to be true).
> RTFM = Read The F\*\*\*\*ing Manual.
> SWEM: Smile with every mile (driven on wood)
---
### Author:  [@ramosedmundo](http://forum.driveonwood.com/u/ramosedmundo)
#### Post date: [August 15, 2017, 2:34pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/9 "2017-08-15T14:34:12Z")
Thank’s Cris. I went through both links and added a lot:
> **expand Glossary**
>
> **TECH WORDS.**
> AFR = Air To Fuel ratio.
> B/S engine= Briggs & Stratton engine (referes to a small engine).
> BARO sensor= BAROmetric air reference sensor. Determines atmospheric pressure, an electronic barometer often as a combined function in the MAP sensor.
> CAT or cat= engine exhaust system CATalytic converter.
> CHP= Combined Heat & Power
> CTS= Coolant Temperature Sensor. Most systems will have two: one electronic for the computer a second to cycle an operator warning light.
> ECM, PCM, ECU= all different manufactures names, over the decades for the ELECTRONIC calculating brain for engine spark, fuel and even transmission commanded OUT controlling.
> ECM = Electronic Control Module.
> ECU = Electronic Control Unit.
> EFI= Electronic Fuel Injection system.
> EGO/HEGOLamba/O2, BARO, TP, TPS, MAP, MAS/AF: all primary and secondary duty sensors in an electronic fuel injection system.
> EGR = Exhaust Gas Return.
> EMT= Electrical Metallic Tubing. Is a thin wall electrical conduit.
> F.E.M.A (or FEMA, fema)=a US Government emergency use only gasifier system authorized and published out made of hardware store garbage cans for limited use only.
> GEK= Gasifier Experimenter’s Kit (All Power Labs).
> IAT= Intake Air Temperature (same as MAT)
> IC engine= Internal Combustion engine.
> Lambda = value for total combustion of fuel.
> MAF sensor= Mass Air Flow sensor.
> MAP = Manifold Absolute Pressure.
> MAT= Manifold Air Temperature (same as IAT).
> MEN - Mother Earth News.
> MIL= Malfunction Indicator Light.
> MPFI= Multiport Fuel Injection.
> NPT= National Piping Thread (refrens to an American standard pipe thread system).
> OBD1= On Board Diagnostics version 1 (auto computer)
> OBD2= On Board Diagnostics version 2 (auto computer)
> PWM= Pulse Wide Modulation (refers to a system that adjusts electric motor speed).
> RTV sealant= Room Temperature Vulanization sealant (refers to silicon sealant).
> SEFI or SFI= Sequential Electronic gasoline fuel Injection. Each individual four-stoke cylinder only getting just the right amount of gasoline injected on only it’s intake stroke. Versus bank injected on every down stroke; and throttle body all-stokes pulsed injected. The gasoline fuel for SEFI MUST be super clean filtered to not clog the very tiny injector nozzle holes.
> SES light= Service Engine Soon warning light. Same as MIL.
> TBI= Throttle Body fuel Injection.
> TDR= Turn Down Ratio.
> TLUD= Top Lit Up Draft (refers to a stove).
> TS = Temperature Sensor.
> TPS = Throttle Position Sensor.
> WOT= Wide Open Trotlle (full speed).
> YMMV= “Your Mileage May Vary”. USofA Government published statement for their vehicle fuel mileage ratings. These are in-lab data collected from emissions certification testing, then calculated. So . . . you are so, so full of shit, un-real-world optimistic.
>
> **SLANG WORDS**
> BBB= Burn Baby Burn
> bs or b.s.= Bull Shit (refers to something that doesn’t seems to be true).
> DIY= Do It Yourself.
> DOW= Drive On Wood.
> HWWT - Have Wood Will Travel.
> KISS= Keep it Simple Stupid.
> RTFM = Read The F\*\*\*\*ing Manual.
> SWEM= Smile With Every Mile (driven on wood).
---
### Author:  [@SteveUnruh](http://forum.driveonwood.com/u/SteveUnruh)
#### Post date: [August 15, 2017, 6:39pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/10 "2017-08-15T18:39:12Z")
Excellant.
Better for these;
EGR = Exhaust Gases Recirculation - redirecting in some modes of operating a tiny percentage of cooled/filtered INERT-now engine exhaust back thorough the engine intake for benefits of slowing down the heat&combustion.
EGT = Exhaust Gasses Temperature (measured for performances)
Regards
tree-farmer Steve unruh
---
### Author:  [@ramosedmundo](http://forum.driveonwood.com/u/ramosedmundo)
#### Post date: [August 15, 2017, 9:13pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/11 "2017-08-15T21:13:00Z")
Thank’s Steve. This Glossary list is getting nice!!
> **expand Glossary**
>
> **TECH WORDS.**
> AFR = Air To Fuel ratio.
> B/S engine= Briggs & Stratton engine (referes to a small engine).
> BARO sensor= BAROmetric air reference sensor. Determines atmospheric pressure, an electronic barometer often as a combined function in the MAP sensor.
> CAT or cat= engine exhaust system CATalytic converter.
> CHP= Combined Heat & Power
> CTS= Coolant Temperature Sensor. Most systems will have two: one electronic for the computer a second to cycle an operator warning light.
> ECM, PCM, ECU= all different manufactures names, over the decades for the ELECTRONIC calculating brain for engine spark, fuel and even transmission commanded OUT controlling.
> ECM = Electronic Control Module.
> ECU = Electronic Control Unit.
> EFI= Electronic Fuel Injection system.
> EGO/HEGOLamba/O2, BARO, TP, TPS, MAP, MAS/AF: all primary and secondary duty sensors in an electronic fuel injection system.
> EGR= Exhaust Gases Recirculation - redirecting in some modes of operating a tiny percentage of cooled/filtered INERT-now engine exhaust back thorough the engine intake for benefits of slowing down the heat&combustion.
> EGT= Exhaust Gasses Temperature (measured for performances).
> EMT= Electrical Metallic Tubing. Is a thin wall electrical conduit.
> F.E.M.A (or FEMA, fema)=a US Government emergency use only gasifier system authorized and published out made of hardware store garbage cans for limited use only.
> GEK= Gasifier Experimenter’s Kit (All Power Labs).
> IAT= Intake Air Temperature (same as MAT)
> IC engine= Internal Combustion engine.
> Lambda = value for total combustion of fuel.
> MAF sensor= Mass Air Flow sensor.
> MAP = Manifold Absolute Pressure.
> MAT= Manifold Air Temperature (same as IAT).
> MEN= Mother Earth News.
> MIL= Malfunction Indicator Light.
> MPFI= Multiport Fuel Injection.
> NPT= National Piping Thread (refrens to an American standard pipe thread system).
> OBD1= On Board Diagnostics version 1 (auto computer)
> OBD2= On Board Diagnostics version 2 (auto computer)
> PWM= Pulse Wide Modulation (refers to a system that adjusts electric motor speed).
> RTV sealant= Room Temperature Vulanization sealant (refers to silicon sealant).
> SEFI or SFI= Sequential Electronic gasoline fuel Injection. Each individual four-stoke cylinder only getting just the right amount of gasoline injected on only it’s intake stroke. Versus bank injected on every down stroke; and throttle body all-stokes pulsed injected. The gasoline fuel for SEFI MUST be super clean filtered to not clog the very tiny injector nozzle holes.
> SES light= Service Engine Soon warning light. Same as MIL.
> TBI= Throttle Body fuel Injection.
> TDR= Turn Down Ratio.
> TLUD= Top Lit Up Draft (refers to a stove).
> TS = Temperature Sensor.
> TPS = Throttle Position Sensor.
> WOT= Wide Open Trotlle (full speed).
> YMMV= “Your Mileage May Vary”. USofA Government published statement for their vehicle fuel mileage ratings. These are in-lab data collected from emissions certification testing, then calculated. So . . . you are so, so full of shit, un-real-world optimistic.
>
> **SLANG WORDS**
> BBB= Burn Baby Burn
> bs or b.s.= Bull Shit (refers to something that doesn’t seems to be true).
> DIY= Do It Yourself.
> DOW= Drive On Wood.
> HWWT= Have Wood Will Travel.
> KISS= Keep it Simple Stupid.
> RTFM = Read The F\*\*\*\*ing Manual.
> SWEM= Smile With Every Mile (driven on wood).
---
### Author:  [@BillyAlabama](http://forum.driveonwood.com/u/BillyAlabama)
#### Post date: [August 15, 2017, 11:51pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/12 "2017-08-15T23:51:54Z")
sounds like an acronym dictionary. 🙂 I like it. Don’t know how to maintain it, but I like it.
---
### Author:  [@SteveUnruh](http://forum.driveonwood.com/u/SteveUnruh)
#### Post date: [August 16, 2017, 6:58pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/13 "2017-08-16T18:58:55Z")
I do not know how that I overlooked this one:
PCV valve: Positive Crankcase Ventilation system/valve
This is the Granddaddy of all engines mandated emissions systems. Mandated in California since 1963? Mandated in all US-of-A since 1967. Pretty innocuous system - usually. A good full flowing system actually helps to keep the oil cleaner for longer oil use life.
Malfunctioning flow control valves can make some system (HONDA’s) idle terribly. To woodgas system suck with the engine this system most often has to be defeated.
YMMV should be moved down to the “slang” section.
Regards
tree-farmer Steve Unruh
---
### Author:  [@Chris](http://forum.driveonwood.com/u/Chris)
#### Post date: [August 17, 2017, 2:34am UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/14 "2017-08-17T02:34:16Z")
OK, I’m cleaning up this topic a little. Please instead of reposting the entire list every time, just edit the original post above. Keep it nicely organized and follow the same formatting you see already there.
Thanks for the push on this one Edmundo, I forgot how helpful such a list can be.
---
### Author:  [@ramosedmundo](http://forum.driveonwood.com/u/ramosedmundo)
#### Post date: [August 17, 2017, 3:09pm UTC](http://forum.driveonwood.com/t/glossary-of-woodgas-automotive-acronyms/3405/15 "2017-08-17T15:09:08Z")
Hi. Chris. You are welcome. Thank’s for “cleaning” or beter, the “clearing”. It is looking good!!