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1991 Ford F-250 Custom 5.8L Open loop after warm
Posted to Ford Driveability on 9/18/2013 12 Replies

Truck came in with MIL on and request for Valve cover gaskets replacement. Several codes ewxtracted initially, but on completion, MIL went out but aforementioned codes [...] 173,332,167. Replaced HEGO as original showed contaminated tip but supply and grounds ...

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  Related Documents & Media  1991 Ford F-250 Custom

 
Message Closed w/FIX

car Vehicle Data

1991 Ford F-250 Custom

VIN 1FTHF26H1M
Engine5.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD1
SymptomsOpen Loop After Warm
OccursHot

Trouble Codes

167TPS SHOWS NO CHANGE when throttle snapped
173HEGO indicates no switching
332EGR not opening
Message Closed w/FIX

car Vehicle Data

1991 Ford F-250 Custom

VIN 1FTHF26H1M
Engine5.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD1
SymptomsOpen Loop After Warm
OccursHot

Trouble Codes

167TPS SHOWS NO CHANGE when throttle snapped
173HEGO indicates no switching
332EGR not opening