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Old 03-02-2013, 06:50 PM   #1
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Join Date: Jan 2013
Location: California
Posts: 21
My Ride: 99 BMW 323i
Unhappy Limp mode after acceleration,I am at a loss.

ok,I have a 99 323I recently failed smog.Found a tear in upper intake boot,replaced it,checked lower its good.Changed plugs,oil,o2sensors (pre cat) removed and cleaned maf and air box and filter.
Car is running fine until,I merge onto the fwy after a 360 turn accelerate then the gear with the ! Shows up.
I PULL over turn car off- it goes away and I am able to drive again normally until this same onramp again.
Code reader is giving me a p1188 fuel bank sensor.
Are these related,if so what is it?
The limp mode only happens at this one onramp believe it or not. Maybe it is fuel delivery due to the gas swishing to one side of the tank before acceleration.?
Any ideas are greatly appreciated,I need to pass smog...and am at a loss.
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Old 03-02-2013, 07:17 PM   #2
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Join Date: Dec 2012
Location: FL
Posts: 2,806
My Ride: 325Ci
When was your fuel filter last changed?
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Old 03-03-2013, 12:11 PM   #3
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Join Date: Jan 2013
Location: California
Posts: 21
My Ride: 99 BMW 323i
I don't know,but it's been at least 3 yrs. I will try that,thank you.
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323i, acceleration, gear exclamation, limp mode, smog

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