High idle
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Junior User
Joined: Sep 2001
Posts: 84
Likes: 0
From: Round Rock USA
High idle
I have an 86 Bronco 302EFI with AOD with 214,000 mi. Nothing replaced.I had a really low idle, I cleaned the airbypass valve. Then I had a really high idle, especially when starting cold. I then replaced the air bypass valve with a new Borg Warner. The high idle persists. I replaced the throttle position sensor and cleaned the throttle body. Still high idle. I read the codes and got a 31. I replaced the EGR valve and sensor. Read the codes again. KOEO 11 and KOER 13. Still a high idle. The only thing I haven't replaced is the O2 sensor. Any ideas?
Steve
Steve
Elder User
Joined: Feb 2000
Posts: 601
Likes: 1
From: South Sioux City, NE USA
High idle
You might need to reset the computer so it can re-learn how to idle. After certain parts are replaced, the computer should be re-set. That way the computer can learn how to compensate for the new parts. It can learn w/o being re-set, but I think it will take a little longer.
To re-set the PCM, just unhook the battery for about 20 to 30 minutes.
Roger Lane
Test Analyst
Sr. Automated Test Engineer
IBP, Inc.
To re-set the PCM, just unhook the battery for about 20 to 30 minutes.
Roger Lane
Test Analyst
Sr. Automated Test Engineer
IBP, Inc.
