Hi guys,
I have a 2004 Silverado 5.3 with the following mods:
AFE Stage 2 CAI
Summit Racing Shorty Headers
Magnaflow single in dual out catback
Comp Cams XR265HR 212/218 .522/.529 114lsa
GM blue valve springs
I am trying to get my VE table dialed in right now. With the MAF disabled the fuel trims are rich(0 to -5). When I enable the MAF everything goes lean(0 to +10). Could this be a vacuum leak issue, or is something amiss in my tune. Bad MAF sensor maybe? I sprayed carb cleaner around my engine to try and find a leak but didn't catch anything. I also cleaned my MAF with CRC MAF cleaner and that did not resolve the issue.
This is the first vehicle I have tried tuning, any input would be greatly appreciated.
Sept 3 Regular Tune.hpl
Sept 3 VE LOG TUNE.hpl
JimboTruck.hpt
JimboTruckVETune.hpt