For the last year I have been having cold start issues, the car runs super lean till it gets all the way warm. I finally bought a stim to test the unit and try and track this down.
Car runs great other than lean on warmup. I hooked up the stim and turned rpm to cranking, the PW will vary with coolant temp like it should but when I turn rpms to 1100 like the idle the warmup % goes up but as I increase the coolant temp the % goes down but the PW stays the say. Meaning its not richening up according to warmup. I have modded the board some to incorporate launch control and fan control. Is it possible that where I have tapped into the board is causing the issue? I am just pulling power from one of the circuits to power a transistor. I ran a log of MS on the stim so you all can see exactly what Im talking about. Also the stim lights are not lighting up at all, it works fine but just thought that was weird. Any help would be greatly appreciated. Thanks
O and in order to run the stim I had to change the crank sensor from 420a back to MSnS to read rpms.
thats the log of MS on the stim. The tune wont seem to upload but maybe that will be enough to offer some suggestions on what could be causing this issue.
#5081, "RE: MSnS warmup enrich not working" In response to Reply # 3
As far as I can remember on the testing i have done on all the units i built, I dont recall the PW changing much at all during warmup. Warm up enrichment is so little the PW hardly changes.
#5087, "RE: MSnS warmup enrich not working" In response to Reply # 4
Figured it out. Under the advance-fuel table selection I had the GammaE turned off so that corrections were disregarded. Car starts up perfect now. Wish I would have figured this out last year.
