On-demand timing/ECU control with OBD2

[Wayne (Wayne Keith ( Springville AL ))]

Hello Mike and welcome to the DOW ( drive on wood )

I don’t have any experience with the OBD2 vehicles but have a lot of miles from vehicles 96 and older .

I have a V-10 Ram that advances the time about 35 degrees when wood gas is put to it . Also I have dodge dakotas 96 and older that I rotate the distributor enough to make the fire jump to the next peg.

The timing issue can get very complicated !!

Here is a tread in the general discussion that might help.

The answer to Mysterious Dodge Timing advance

Anyway I saw a nice v-6 dakota for cheap (1000$) and in good condition. So I really wanted to understand what was going on when you advance the timing on a dodge v-8 (and more specifically if I could find a way to make advance on a v-6). So I asked a man a question and got an answer. In slightly oversimplified terms the answer is that the ignition timing is determined by the computer through a combination engine sensor observations and the position of the crankshaft (ie. crank fired ignition). F…