code P0171

bbrewer03 · December 2nd, 2007, 04:52 PM

My car has been quiting randomly. It has occurred while stopping with clutch depressed and while going 55 mph down the highway. Finally, it threw a CEL and this is the code: P0171 System Adaptive Fuel too lean. (BANK 1). I replaced my IAC with a new one this summer. I have a 1997 GT. The Haynes manual really does not give any direction to go on this. Any help would be appreciated.

HMUSN · December 2nd, 2007, 04:53 PM

clean your mass airflow sensor.

bbrewer03 · December 2nd, 2007, 04:56 PM

I will try that. LOL will windex do the trick?

HMUSN · December 2nd, 2007, 04:57 PM

no.

try this.

Clean Your MAF

bbrewer03 · December 2nd, 2007, 05:10 PM

Haha amazing, my air filter has fallen off. No telling wtf else sucked up into my motor. Ah well.........just my luck. Thanks

HMUSN · December 2nd, 2007, 05:12 PM

sorry to hear it man.

at least you know what it is now.

97GT4.6 · December 2nd, 2007, 06:52 PM

Well even though some crud has been sucked into your engine, at least it wasn't something such as your Mass Air Flow which is like 300 bucks to replace if its shot. Most of the time, a good cleaning will fix em, but if the little cord that sits in side there is shot, its time for a replacement

Glad to hear you got it fixed.

December 2nd, 2007, 04:52 PM	#1
bbrewer03 Regular 1997 Mustang GT Join Date: Aug 2006 Location: Kentucky Posts: 178 iTrader: 0 reviews	code P0171 My car has been quiting randomly. It has occurred while stopping with clutch depressed and while going 55 mph down the highway. Finally, it threw a CEL and this is the code: P0171 System Adaptive Fuel too lean. (BANK 1). I replaced my IAC with a new one this summer. I have a 1997 GT. The Haynes manual really does not give any direction to go on this. Any help would be appreciated. __________________ 1997 GT Cobra R Hood, Cobra Front bumper, MSD plug wires, Tailights, Projector headlights, 18x9 chrome bullet wheels in front and 18x10s in back, Tunable Induction Cold air intake, flowmaster mufflers. 4.10 Gears.

December 2nd, 2007, 04:53 PM	#2
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	clean your mass airflow sensor. __________________

December 2nd, 2007, 04:56 PM	#3
bbrewer03 Regular 1997 Mustang GT Join Date: Aug 2006 Location: Kentucky Posts: 178 iTrader: 0 reviews	I will try that. LOL will windex do the trick? __________________ 1997 GT Cobra R Hood, Cobra Front bumper, MSD plug wires, Tailights, Projector headlights, 18x9 chrome bullet wheels in front and 18x10s in back, Tunable Induction Cold air intake, flowmaster mufflers. 4.10 Gears.

December 2nd, 2007, 04:57 PM	#4
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	no. try this. Clean Your MAF __________________

December 2nd, 2007, 05:10 PM	#5
bbrewer03 Regular 1997 Mustang GT Join Date: Aug 2006 Location: Kentucky Posts: 178 iTrader: 0 reviews	Haha amazing, my air filter has fallen off. No telling wtf else sucked up into my motor. Ah well.........just my luck. Thanks __________________ 1997 GT Cobra R Hood, Cobra Front bumper, MSD plug wires, Tailights, Projector headlights, 18x9 chrome bullet wheels in front and 18x10s in back, Tunable Induction Cold air intake, flowmaster mufflers. 4.10 Gears.

December 2nd, 2007, 05:12 PM	#6
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	sorry to hear it man. at least you know what it is now. __________________

December 2nd, 2007, 06:52 PM	#7
97GT4.6 Hardcore Enthusiast 97 GT 14.2@99.8 @ 4800 ft Join Date: Oct 2007 Location: Fort Collins and Pueblo, Colorado Posts: 2,347 iTrader: 1 reviews	Well even though some crud has been sucked into your engine, at least it wasn't something such as your Mass Air Flow which is like 300 bucks to replace if its shot. Most of the time, a good cleaning will fix em, but if the little cord that sits in side there is shot, its time for a replacement Glad to hear you got it fixed. __________________ Cammed 2v Built By MustangMatt More mods than times your daughter has slept around

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