P0171/ p0174 need help
08-18-2016, 12:48 AM
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P0171/ p0174 need help I have an 04 gto that is running lean on both banks. I checked fuel pressure and it is at 60, ltft's are +25% at idle and drop significantly when rpm's are held. Stft's are at 10%-12% and drop to 4%-6%. Any idea what could be the problem.
08-18-2016, 10:28 AM
#2
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any mods done to the car??
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
08-18-2016, 11:49 AM
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Just k&n air intake, previous owner deleted resonators and mufflers but that's it. I don't have access to smoke machine but I was thinking maybe intake leak, I will spray some carb cleaner around it and see if I get reaction.
