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1999 Ford Explorer Eddie Bauer 4.0L Poor Idle Quality, MIL Lamp on
Posted to Ford Driveability on 11/21/2002 17 Replies

Customer is back complains rough [...] time codes was Po171 Po174 now its 1138,1158,1132,1152. I am not a Ford Tech,why do i have so different codes. Any suggestion where i start looking.

Thanks Guys

17 Replies Received (View Replies)

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car Vehicle Data

1999 Ford Explorer Eddie Bauer

VIN 1FMZU34EXX
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursSometimes
Misc.4.0L Sohc Engine

Trouble Codes

1132HO2 S11 Rich
1138HO2 S12 do not switch
1152HO2 S21Rich
1158HO2 S22 the same
P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

1999 Ford Explorer Eddie Bauer

VIN 1FMZU34EXX
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursSometimes
Misc.4.0L Sohc Engine

Trouble Codes

1132HO2 S11 Rich
1138HO2 S12 do not switch
1152HO2 S21Rich
1158HO2 S22 the same
P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)