Turbo car, underhood temps causing fueling problems, ever heard of it?
09-03-2013, 04:24 PM
#41
Sure I could do that, but you wouldn't want to come take a look at the car with me would you since you have experience with turbo cars? Maybe you will see something I am missing? Another set of eye ***** never hurts.
Also I did take the IAT sensor out and heated it up with the hair dryer. It does cause the AFR to lean out into the high 15's or low 16's but that is as high as I could get it to go and the IAT temp was up to 137. I have never had the actual IAT that high and sometimes when my problem is happening I will see 18 or 19 for the AFR.
Also I did take the IAT sensor out and heated it up with the hair dryer. It does cause the AFR to lean out into the high 15's or low 16's but that is as high as I could get it to go and the IAT temp was up to 137. I have never had the actual IAT that high and sometimes when my problem is happening I will see 18 or 19 for the AFR.
09-04-2013, 10:47 AM
#43
I am going to try using air from my compressor to directly cool different parts of the harness and things to see if any of them makes a difference. There is nothing back there in that part of the car except the ECM and the ECM harness. I wonder if the harness is getting too hot causing the problem.
09-04-2013, 05:29 PM
#45
I had the exact same thing happening and noticed it in high ambient temps. Tested everything you've done, this may sound odd but my problem was my wiring to the fuel pump. I was running to small wire and caused the pump to fail and lose fuel pressure. Once everything cooled off it was fine again. I upgraded my pump and wire to 10 gauge with dual relays. Fixed. Bit outside the box, just throwing out ideas.
