idle surge
idle surge
Tuned
Joined: Apr 2003
Posts: 395
Likes: 0
From: Austin
idle surge
Mine did that after I bought it. After having a problem with it at work, another dude at work who used to have a Ranger with the same 2.9L as mine. He said the rough idle was because of a clogged air filter. About a week later I opened the airbox to check it, and the filter was practically black (I'll take a pic of it in a little bit) it was so clogged. I went and bought a new cheapo paper filter and the rough idle has hardly happened since.
OVERALL: Try a new air filter as well.
OVERALL: Try a new air filter as well.
Freshman User
Joined: May 2003
Posts: 46
Likes: 0
From: A cold city in the Great White North
idle surge
Been there done that. Its not the air filter. Its a sensor somewhere down the line. I just don't know which one it is thats causin the problem, and im too cheap to take it in for a scan.
Tuned
Joined: Apr 2003
Posts: 395
Likes: 0
From: Austin
idle surge
Originally posted by ShadowBronco2
Been there done that. Its not the air filter. Its a sensor somewhere down the line. I just don't know which one it is thats causin the problem, and im too cheap to take it in for a scan.
Been there done that. Its not the air filter. Its a sensor somewhere down the line. I just don't know which one it is thats causin the problem, and im too cheap to take it in for a scan.
Each car has it's own reasons for the same problemos... so... who knows...
Freshman User
Joined: May 2003
Posts: 46
Likes: 0
From: A cold city in the Great White North
idle surge
Thats true. I disconnected the O2 sensor and the problem seems to have gotten a bit better. It still does it a bit, but not as bad.
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Tuned
Joined: Apr 2003
Posts: 394
Likes: 13
From: 13th Colony
idle surge
Shadow, you do not have to take it in to get the codes scanned. You can run it with a piece of wire or gem clip.
see this thread:
https://www.ford-trucks.com/forums/s...hreadid=112295
http://www.broncodata.com/tech/codes.htm
I believe that 90 and earlier use the 2 digit code and 91 and later use the 3 digit codes. They are both listed in the above link. The cutoff maybe 92 instead of 91, not sure.
BroncoBasher
see this thread:
https://www.ford-trucks.com/forums/s...hreadid=112295
http://www.broncodata.com/tech/codes.htm
I believe that 90 and earlier use the 2 digit code and 91 and later use the 3 digit codes. They are both listed in the above link. The cutoff maybe 92 instead of 91, not sure.
BroncoBasher
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Tuned
Joined: Apr 2003
Posts: 394
Likes: 13
From: 13th Colony
idle surge
Shadow,
I am assuming you have fuel injection if it is an 86 motor. Does it have the eec-iv computer control system? The computer is located behind the passenger side kick panel and the test harness is behind the airbox under the hood. I believe there is a picture of the connector somewhere on the links for eec-iv. I believe that that test procedure applies to all eec-iv fuel injected engines.
BroncoBasher
I am assuming you have fuel injection if it is an 86 motor. Does it have the eec-iv computer control system? The computer is located behind the passenger side kick panel and the test harness is behind the airbox under the hood. I believe there is a picture of the connector somewhere on the links for eec-iv. I believe that that test procedure applies to all eec-iv fuel injected engines.
BroncoBasher
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CobraXP
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Apr 22, 2002 06:52 PM
