Author
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Topic: 1988 ford bronco codes
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moeofit32
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Member # 10393
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posted
So i pulled codes with my reader and got 10,11,34...34 reads egr not closed....how should i trouble shoot this?
-------------------- 95 stroked and blown cobra
Posts: 2387 | From: antioch ca | Registered: Oct 2010
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NK2186
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Member # 12319
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posted
Are these key on engine off codes? or key on engine on codes?
Also 302 or 351 (assuming full size bronco)
I can punch it in all data for you real fast.
Could just be clogged up with carbon or a electrical problem where it is not working properly.
Code 34 is no EGR flow. Code 10 is not listed and Code 11 is system test pass.
If this is KOEO (key on engine off) codes i suggest running the KOER (Key on engine running) diagnostic mode for the ford computer.
This site has info about the KOER test:
http://sbftech.com/index.php/topic,2471.0.html
-------------------- 90 LX 5.0 - Stolen/stripped 89 LX 5.0 - Stolen and missing as of 7-24-13. LIC# 4HIP151 :( 99 Cobra 00 Exploder
Posts: 400 | From: Haystack | Registered: Aug 2012
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moeofit32
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Member # 10393
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posted
This was with key off im going to try key on i swapped out the egr and im still having a intermitting issue with my idle dropping sometimes the car even dies
-------------------- 95 stroked and blown cobra
Posts: 2387 | From: antioch ca | Registered: Oct 2010
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moeofit32
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Member # 10393
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posted
I just did engine on test and got 10,44,77,52
-------------------- 95 stroked and blown cobra
Posts: 2387 | From: antioch ca | Registered: Oct 2010
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NK2186
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Member # 12319
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posted
10 not listed
44 Air management system inoperative
77 Operator did not do "Goose Test" (No idea wtf lol)
52 Power steering pressure switch is open or steering wheel not turned during self test.
I am using a 88 full size bronco with a 302 for info in all data. so hopefully this is what you have.
For code 44 they say to verify vacuum routing (cracked or kinked hoses as well) and to ensure the vac tubes that go to the electronic vacuum controller on passenger side fender well is working.
The code 77 (Goose test) is because you did not press the pedal to the floor real fast to start the diagnostic self tests where the engine idle increases and it goes through the different tests then reports back the DTC's.
Are you using one of the small code readers when you do this?
I had to do this procedure on my 89 5.0 quite a few times to track down some issues and it worked out pretty well.
Is the truck running good just has codes?
Try to run the test again and press pedal to the floor and then let off it should bring engine RPM up to around 2000RPM and do the self tests. If code 77 is gone then the other codes you get at that time are accurate. If the EGR code is not back then the problem with that is gone and you need to check out the other ones.
Good luck mayne! PM me if you need anything specific and i'll try to get it over to you
-------------------- 90 LX 5.0 - Stolen/stripped 89 LX 5.0 - Stolen and missing as of 7-24-13. LIC# 4HIP151 :( 99 Cobra 00 Exploder
Posts: 400 | From: Haystack | Registered: Aug 2012
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moeofit32
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Member # 10393
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posted
the car runs good but sometimes it will just drop rpms out of no where and then climb back up and sometimes the car will die out and i will have to turn it back on...other then that the car runs well...this is a full size bronco with a 302 and im using a code reader
-------------------- 95 stroked and blown cobra
Posts: 2387 | From: antioch ca | Registered: Oct 2010
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