Really would appreciate help from the Forced Induction and Tuner Heavy weights on this maddening issue.
I am trying to root cause my start and die issue on my 2010 SS Whipple & Cam set up. Developed this condition over the last few years where the car is difficult to stay running after start-up, and can try to start 2-3+ times before it stays running. This year it went into P2135 limp mode after 6 start attempts, so I cleared the code and it would at least run normal when it started. I have had a well known tuner analyze many Data Logs and revise my tune, it is better, but still has the issue, especially when hot. He say's it can't be "Tuned Out", and is probably mechanical. When it runs, it really rips, but lot's of back rap and popping with the Long Tubes and Borla Atak w/o Cats. Normal? - I don't mind it. The start/stall issue is evident on the attached DL - one at the beginning, and 3 at the end, all have a short RPM spike.
Back Ground - new TB, Accel Pedal, New fully charged battery, new tune. No current Codes! Drained the old gas and put in fresh 93 Tier 2. Kept pumping fresh gas into old gas over a number of years as the car is basically infrequently driven (car shows, a romp, etc.) My Tuner said disconnect and bypass the MSD BAP, which I did. Used MSD View software to analyze it and it seemed to function OK, but bypassed it to rule it out. IAT readings seemed high (gage on VCM screen red after 110 deg), ranging from 61 deg cold to 118+ at hot idle? Insulated the CAI Air box some more, and wrapped the inlet tube. Inlet tube was warm and blower hat was hot after a drive - normal?
What I am doing now - checking and cleaning all grounds, wire harness integrity, connections, etc. Looking for the obvious. The car is immaculate and not like there is a lot of corrosion anywhere. My tuner said to check if my injectors were leaking. Getting a fuel pressure tester to do this. Is the FP Tap Port on the Whipple Fuel Rail as shown in the attached pic? Just connect to that, key it, and look for leak down over time? Also in the process of changing the TR7IX plugs, even though they look OK.
Possible Root Causes:
1. Bad Injectors leaking causing a hard start and excessive back rap/pop on decell?
2. Intermittent Fuel Pump issue? Did the MSD BAP not play nice with the FP?
3. Intercooler Pump intermittent? Seems to flow when looking into reservoir, but noticed the ground wire connection at the terminal was not in the best condition.
4. Bad Ground(s)?
5. WTF Else to check?
Appreciate any insight and recommendations!