high idle and cel
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high idle and cel
I have a 95 bronco with a 302 in it. Sometimes when you start it up, it doesn't matter if it is warmed up or cold start, it will idle up a little like normal then the check engine light will start flashing and it revs up to about 1500-1600 rpms and holds it for a few seconds then drops back down a stumbles around and usually strightens out ok but some times it dies.
I have pulled codes and ran test replaced the iac valuve and throttle position sensor, new plugs, wires, distributor cap and rotor and still it does this. The new TPS helped for may be a week but then it was back to the same old crap.
Some times it will stumble around after you get out on the road right as you take off, it reminds me of a carbed truck that needs the choke turned off.
I just thought I would see if any one has any new ideas for me to try.
I have pulled codes and ran test replaced the iac valuve and throttle position sensor, new plugs, wires, distributor cap and rotor and still it does this. The new TPS helped for may be a week but then it was back to the same old crap.
Some times it will stumble around after you get out on the road right as you take off, it reminds me of a carbed truck that needs the choke turned off.
I just thought I would see if any one has any new ideas for me to try.
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From: sunny fla sometimes windy
With the truck warm where does it idle with the IAC wires disconnected? And are
the TPS wires roughly pointing to the IAC? IF not you really need to set the tps
to read right with a multimeter(search setting tps voltage) You should have a non
comp idle at around 500-575 rpm then it should jump up when you plug in the IAC.
the TPS wires roughly pointing to the IAC? IF not you really need to set the tps
to read right with a multimeter(search setting tps voltage) You should have a non
comp idle at around 500-575 rpm then it should jump up when you plug in the IAC.
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Originally Posted by BroncoChris88
Did you have the cel checked?
I have had two different computers hooked up to it while it went through this reving up and cel light flashing.
No codes stored or thrown on any of the times we did it.
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From: Bend,OR
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Originally Posted by Kemicalburns
if the CEL is lit then a code will be stored. what method are you using to pull codes?
I had several people tell me it sounded like the tps was going bad so I replaced it and it did good for a few days then right back to the same old thing. It does it when its cold or hot motor nor climate temp seem to effect it.
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same problem
I have a 95 5.8, and it's been doing almost the same thing for 9 months. the only difference is, it never dies. Once the high idle start thing quits, it runs normally. Additionally, it doesn't do it all the time. For instance, the last 2 days, no idle pop. 4 no idle pops in Jan, 8 NIP in Dec, 13 NIP in Nov...
No codes, just the flash as you describe.
No codes, just the flash as you describe.
Last edited by 95BroncoXLT5.8; Feb 15, 2008 at 09:12 PM. Reason: couldn't read the original post whlist posting
Hotshot
Joined: Jul 2002
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From: Bend,OR
go to www.fordfuelinjection.com and use the paper clip method. if you dont even get a 11 system pass then your ecu is probably bad.
check all of your grounds as well.
check all of your grounds as well.
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Originally Posted by Fanboy
Sounds like my truck, same exact symptoms. I ended up changing the MAP sensor out. Now granted that this is on a 92 F-150, but it should work on your truck as well.
Good Luck!
Good Luck!
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