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1990 Mercury Cougar LS 3.8L MIL Lamp on
Posted to Ford Driveability on 1/5/2001

i have 5 volts on the v-ref and the maf sig out of pcm [pin 45] have checked all grounds 40, 60, 49, and 6, have pulled all fuses and still there, even have 1.65 v on pin 45 with pcm power relay disconnected. any ideas appreciated

  Related Documents & Media  1990 Mercury Cougar LS

 
Message Closed w/FIX

car Vehicle Data

1990 Mercury Cougar LS

VIN 1MEPM63RXL
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsOBD1
SymptomsMIL Lamp On
OccursAlways
Misc.Super Coupe

Trouble Codes

22map out of self test range
Message Closed w/FIX

car Vehicle Data

1990 Mercury Cougar LS

VIN 1MEPM63RXL
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsOBD1
SymptomsMIL Lamp On
OccursAlways
Misc.Super Coupe

Trouble Codes

22map out of self test range