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1989 Ford F-350 Custom 5.8L Poor Idle Quality, MIL Lamp on
Posted to Ford Driveability on 4/26/2003 8 Replies

This truck has 3 more KOEO codes: 93 94 99. All codes set every time the KOEO test is run. Truck will not run the KOER test.

Alldata diagnostic code charts do not corespond to the code descriptions we are getting. Code 56 is a MAF code but the truck has no MA...

8 Replies Received (View Replies)

  Related Documents & Media  1989 Ford F-350 Custom

 
Message Closed w/Summary

car Vehicle Data

1989 Ford F-350 Custom

VIN 2FTJW35HOK
Engine5.8 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality, MIL Lamp On
Misc.Non E4od

Trouble Codes

31EGR CKT Open
56MAF High CKT
67PN Switch CKT Fail
82Thermactor or Bypass CKT
91O2 CKT Fault
92O2 CKT Rich
Message Closed w/Summary

car Vehicle Data

1989 Ford F-350 Custom

VIN 2FTJW35HOK
Engine5.8 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality, MIL Lamp On
Misc.Non E4od

Trouble Codes

31EGR CKT Open
56MAF High CKT
67PN Switch CKT Fail
82Thermactor or Bypass CKT
91O2 CKT Fault
92O2 CKT Rich