LM7 motor in a L10

My son has put in a lm7 engine in a l10a, has some fuel injectors from a lq4, so a little bigger.
The car goes well when it is cold, but when he then restarts it and goes home it goes bad.
Have any tips?.

This L10A?


Sorry, the Chevrolet S10 should be.


Oh well. I hope somebody is doing that swap, somewhere… :smile:

I’d guess something to do with cold start enrichment. But I know almost nothing on those motors/ECU’s.


hi Chris i wounder if those 25.00 alldata one year perscriptions are any good, on there one vehicle deals. The alldata we used in auto school class had lots of usefull diagnostic steps too follow too testing faults.