1989 5.0 codes!
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1st Gear
Joined: Oct 2022
Posts: 1
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1989 5.0 codes!
Hey guys new to the group, self taught learner here, and new to the obd1 era. I have an 89 5.0 f150 that stalls out on me. After driving a while (30min or more).
purchased an obd1 reader and got codes 12*44*33*77*52*
Not sure if these codes all work together or what. Just not to sure where to start. Don't want to throw money where it's not needed.
purchased an obd1 reader and got codes 12*44*33*77*52*
Not sure if these codes all work together or what. Just not to sure where to start. Don't want to throw money where it's not needed.
Mountain Pass
Joined: Jul 2022
Posts: 130
Likes: 16
Welcome to the group.
Any chance you could post what each of those codes are? Somewhat troublesome to have to research what each one is. here is a very useful website https://web.archive.org/web/20130628...index.php?p=46
Some of those codes are KOER. Did you run a KOER test? sorry I don't know how a OBD1 reader works.
Any chance you could post what each of those codes are? Somewhat troublesome to have to research what each one is. here is a very useful website https://web.archive.org/web/20130628...index.php?p=46
Some of those codes are KOER. Did you run a KOER test? sorry I don't know how a OBD1 reader works.
Hotshot
Joined: Jun 2015
Posts: 12,879
Likes: 2,446
12 engine running - rpm idle out of range /high
44 engine running - thermactor air fault
33 engine running or stored - EGR valve not opening properly
77 engine running - dynamic response not sensed (operator error)
52 engine off or engine running - power steering pressure switch open
It appears that you performed the key on engine running test. Throw all those codes in the trash. Now do the key on engine off test. Tell us what codes you get and whether it is an active or stored code.
44 engine running - thermactor air fault
33 engine running or stored - EGR valve not opening properly
77 engine running - dynamic response not sensed (operator error)
52 engine off or engine running - power steering pressure switch open
It appears that you performed the key on engine running test. Throw all those codes in the trash. Now do the key on engine off test. Tell us what codes you get and whether it is an active or stored code.
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