SES Code P0171, and P0300, Help Please
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SES Code P0171, and P0300, Help Please
Hey guys,
So my truck is throwing these codes
P0171 - Fuel Trim System Lean Bank 1, is what it is saying for this code
P0300 - Random/Multiple Cylinder Misfire Detected
Any help with what this may be, im kinda leaning towards the MAF, also how do you get rid of a truck running lean,
Truck is an 02 GMC, intake, exhaust, and tune, thanks
So my truck is throwing these codes
P0171 - Fuel Trim System Lean Bank 1, is what it is saying for this code
P0300 - Random/Multiple Cylinder Misfire Detected
Any help with what this may be, im kinda leaning towards the MAF, also how do you get rid of a truck running lean,
Truck is an 02 GMC, intake, exhaust, and tune, thanks
#4
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Hey guys,
So my truck is throwing these codes
P0171 - Fuel Trim System Lean Bank 1, is what it is saying for this code
P0300 - Random/Multiple Cylinder Misfire Detected
Any help with what this may be, im kinda leaning towards the MAF, also how do you get rid of a truck running lean,
Truck is an 02 GMC, intake, exhaust, and tune, thanks
So my truck is throwing these codes
P0171 - Fuel Trim System Lean Bank 1, is what it is saying for this code
P0300 - Random/Multiple Cylinder Misfire Detected
Any help with what this may be, im kinda leaning towards the MAF, also how do you get rid of a truck running lean,
Truck is an 02 GMC, intake, exhaust, and tune, thanks
#5
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I just been having this same problem. I checked the codes today . PO171 and PO174 lean banks. I just changed the fuel pressure regulator. Problem is the same a little better but no much . What else could it be?
#7
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The truck runs fine on the freeway. At idle it does stumble a bit and when I drive it at low in town driving speeds it falls on it face when I go to give it a little gas. If i jump on it from a dead stop it will cut out and back fire. Like it loads up then it takes off then stumbles again. WTF. If i ease into the gas it runs fine? So i have to ***** foot my truck to drive it and it is driving me nuts. I"m gonna do an oil change, re-place fuel filter, clean mass air, clean throttle body today. It needs to be done anyway but I have to rule a couple thins out first. I will also check for any vaccum leaks too.
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#10
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The truck runs fine on the freeway. At idle it does stumble a bit and when I drive it at low in town driving speeds it falls on it face when I go to give it a little gas. If i jump on it from a dead stop it will cut out and back fire. Like it loads up then it takes off then stumbles again. WTF. If i ease into the gas it runs fine? So i have to ***** foot my truck to drive it and it is driving me nuts. I"m gonna do an oil change, re-place fuel filter, clean mass air, clean throttle body today. It needs to be done anyway but I have to rule a couple thins out first. I will also check for any vaccum leaks too.