Weird- DVT Commands not working
So it’s been a while since I’ve been on here needing help... I’m really scratching my head on this. I changed my truck to run a Magnacharger and have been struggling with it starting, idling, surging. I’ve went thru idle tutorial on setup- I’ve changed surface area for bigger 90mm TB- I’ve been struggling with these Deka 60lb injectors - when I changed the data from what I found on a HPTuner forum- truck ran little better but when I changed pulse offset due to voltage it went crazy rich....
Anyhow I found a happy medium right now but noticed lastnight when using the DVT commands I couldn’t control idle by rpm- I could adjust the IAC and it messed with rpm- second part was command afr- I would be idling at 14.1-14.6 when I command 14.7 it went really rich....12.2-12.4 afr
Another thing that is weird is when motor would be over 130 degrees and running just SD 2 bar truck would not restart after a reflash- fought this for a week or two- I plugged maf in off to the side and it would allow it to restart... confuses me- I have it set to fail 1 hz - dtc non emission-
What gives? Injector data wrong? Iac to far out of range? TB not adjusted right? Anyone run into this?
1999 GMC Sierra
Lq9 243 heads-ls9 headgaskets (10.6:1)
BTR stage 3 truck cam
Mp122hh with 3.6 pulley (5-6 psi)
LT WORY
60lb Deka injectors
Efans
Cos3 with 2 bar
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