What are your mods? I viewed your profile and didn't find them. What type of fuel system are you running?
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Mods are cold air intake, off road x pipe with catback and stock pulleyWhat are your mods? I viewed your profile and didn't find them. What type of fuel system are you running?
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No boost a pumps or anythingIf you are running a BAP with stock pumps, you could've partially blown a hose in the tank. Usually, they blow off completely, but maybe it has just ruptured.
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Mods are cold air intake, off road x pipe with catback and stock pulley
Nope did not put gas in. Literally just parked it and over night the next day the gauge was going crazy from 17.0 to 15.5 then to 16.5. What should spec be for fuel pressure at idle? Should I check at idle and higher rpm?Let's verify fuel pressure. Did you put gas in the car right before these lean issues arises?
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Nope did not put gas in. Literally just parked it and over night the next day the gauge was going crazy from 17.0 to 15.5 then to 16.5. What should spec be for fuel pressure at idle? Should I check at idle and higher rpm?
So I checked fuel pressure at the rail and I checked vacuum as well. This is at cold start. Vacuum was 21 hg and fuel pressure was 29-30psi at idleCheck at idle. I would stay out of the boost if you check under acceleration.
The issue is present at idle so let's start there.
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If it’s lean at idle would driving change anything?Those are good idle numbers. Time to start watching the pressure while driving.
I'm still not 100% convinced it's not your wideband. It might be the wideband itself. I would drive the car at part throttle and watch the pressure. It should go up as you accelerate. And watch your short term trims if you can.If it’s lean at idle would driving change anything?
Is the car 100% stock? Are you running aftermarket injectors or tune?
May need to suck it up and just take it to a tuner.