Misfires and spitting gas
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Joined: Apr 2022
Posts: 2
Misfires and spitting gas
I’m new to the forum, not sure how this all works, hope this is where it’s supposed to be.
I’ve got a 2010 v6 that I’ve been storing for the last 5 months for winter. I took it out for the first time and drove 20 minutes, then it sat for about 2 hours. When I went to start it again, it started shaking and shooting white smoke and gas out of the exhaust and went into limp mode. It was coding the following:
P0300- engine misfire
P0302- misfire cyl 2
P0304- misfire cyl 4
P0306- misfire cyl 6
P0087- Fuel rail low pressure
P0089- Fuel pressure regulator performance
P0191- fuel rail pressure sensor performance
Me and my buddy decided to run some SeaFoam through it while we read up on a fix for a while, and it actually worked. The car stopped throwing codes and shaking and all the rest so we thought we had maybe cleared out some bad gas it had from sitting for the winter.
Thinking all was well, I took it out for the first real drive of the summer today, only to get more codes, shaking, and smoke. Codes this time were:
P0303- cyl 3 misfire
P0089- Fuel pressure regulator performance
P0191- Fuel rail pressure sensor performance
P2273- HO2S signal stuck rich bank 2 sensor 2
I’m not very mechanically inclined so I thought I’d throw this out here and see if anyone had similar problems or something stuck out as an obvious fix. Any advice on a starting point or something to check first would be really appreciated.
I’ve got a 2010 v6 that I’ve been storing for the last 5 months for winter. I took it out for the first time and drove 20 minutes, then it sat for about 2 hours. When I went to start it again, it started shaking and shooting white smoke and gas out of the exhaust and went into limp mode. It was coding the following:
P0300- engine misfire
P0302- misfire cyl 2
P0304- misfire cyl 4
P0306- misfire cyl 6
P0087- Fuel rail low pressure
P0089- Fuel pressure regulator performance
P0191- fuel rail pressure sensor performance
Me and my buddy decided to run some SeaFoam through it while we read up on a fix for a while, and it actually worked. The car stopped throwing codes and shaking and all the rest so we thought we had maybe cleared out some bad gas it had from sitting for the winter.
Thinking all was well, I took it out for the first real drive of the summer today, only to get more codes, shaking, and smoke. Codes this time were:
P0303- cyl 3 misfire
P0089- Fuel pressure regulator performance
P0191- Fuel rail pressure sensor performance
P2273- HO2S signal stuck rich bank 2 sensor 2
I’m not very mechanically inclined so I thought I’d throw this out here and see if anyone had similar problems or something stuck out as an obvious fix. Any advice on a starting point or something to check first would be really appreciated.
it sounds like you legitimately got a bad batch of gas and/or water in your gas. Was it sitting outside?
How low is the fuel currently? I'd try to put as much fresh gas as possible on top of what you have in there so that it can mix with the existing. Also, you may want to run to your local parts store and grab some "dry gas", drop that in the tank and run the entire tank through
How low is the fuel currently? I'd try to put as much fresh gas as possible on top of what you have in there so that it can mix with the existing. Also, you may want to run to your local parts store and grab some "dry gas", drop that in the tank and run the entire tank through
Thread Starter
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Newbie
Joined: Apr 2022
Posts: 2
it sounds like you legitimately got a bad batch of gas and/or water in your gas. Was it sitting outside?
How low is the fuel currently? I'd try to put as much fresh gas as possible on top of what you have in there so that it can mix with the existing. Also, you may want to run to your local parts store and grab some "dry gas", drop that in the tank and run the entire tank through
How low is the fuel currently? I'd try to put as much fresh gas as possible on top of what you have in there so that it can mix with the existing. Also, you may want to run to your local parts store and grab some "dry gas", drop that in the tank and run the entire tank through
it had a half tank of gas when we dumped in the can of sea foam and ran it. We then went right up the road and filled the tank with 91 octane. My thought is that if anything, the gas is now higher quality and shouldn’t still be causing problems. It drive for another hour after that before coding again.
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