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89 Bronco, need help please

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Old Mar 8, 2004 | 05:41 PM
  #1  
DJack's Avatar
DJack
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From: Colorado
89 Bronco, need help please

Runs like crap
When I start up(cold) my 89, it runs like crap, choppy and sounds like a put put. But then I get to walmart and when I get back in and the vehicle has warmed up(I guess) it runs clear as a bell?What gives?

Also I have a duct under the hood that attaches to the air filter that looks like a forced air thing. Can I put on a K&N gen II filter with this thing on??
 
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Old Mar 8, 2004 | 08:33 PM
  #2  
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If its still efi, then you might try pulling the codes to see if anything is coming up. You can go to autozone and they will pull them for free, print the codes they give you on this site and someone will help you decode them. good luck
 
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Old Mar 8, 2004 | 09:40 PM
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EPNCSU2006
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From: Concord, NC
I would check to see that the EGR valve is closing all the way. If it's hanging open, it will make the truck run rough, and most noticably at cold starts.
 
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