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Old 05-23-2012, 07:31 PM
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fuel injector code

hi im working on a 99 dodge durango with a 5.2 its idling rough and will not rev past 3000 rpm i threw the scanner on it and it came up with a 2,1,5 and fuel injector open circuit code but all my injectors are spraying fuel if anyone knows what this could be i would appreciate the help thanks

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Old 05-24-2012, 08:33 AM
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How did you get those codes? None that I know of are single numbers. Even the older vehicles are at least double numbers....
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Old 05-24-2012, 08:57 AM
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the code was a p0201
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Old 05-24-2012, 04:42 PM
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That was an injector code for injector in cylinder number 1.
Probably needs a new injector. Seen it before , did it yesterday.
Check the wiring over well. The injector can be ohmed out but wont allways give a reading that is indicative of being faulty, but it can . It can be bad and still read OK when checked. Problem is most likely intermittent, but the ECM is catching it.
I would change the injector on it.
Just curious. How do you know the injector is spraying fuel ?
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Old 05-24-2012, 04:53 PM
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i also have codes for 4 other injectors but they are all still spraying i dont get it
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Old 05-24-2012, 05:01 PM
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They are probably all going bad.
How can you be sure they are still spraying? If there is an electrical problem with them they may spray most of the time skip one or two sprays and set the code. Hard to see them Not spraying really, even if you can see them.
Let me ask you this ...Does it run just Fine or ?
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Old 05-24-2012, 05:42 PM
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it runs like garbage and i pulled the injectors with them still connected to the rail and watched them spray i also think the catalytic conveter is clogged could that throw a code?
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Old 05-24-2012, 05:55 PM
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A plugged cat will cause a real sluggish response, as it plugs more, the response gets worse. Easy to check... just lower the exhaust at the manifolds by loosening the bolts and just leave the pipes hang there loose, with an air gap between.Basically unhooking the exhaust.Then drive it, If performance is restored, Bada Bing , you found the trouble.
If you are getting injector codes, they are bad. Replace them.
It would be a real good Idea to perform a compression test to be sure that you mill is up to snuff as well, before dumping a bunch of cash into injectors and cats.
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Old 05-24-2012, 06:25 PM
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There is a TSB for this condition, it is Chrysler #18-017-02. It involves reprogramming the Powertrain Control Module (PCM). These are false codes that are being set. There normally is nothing wrong with the vehicle.

This from Direct Fix. You may also have other issues.
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Old 05-24-2012, 06:32 PM
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That is good info RichieHD . I have seen injectors cause an issue like he is describing, but I understand and agree with what you are saying.I was not aware of a service bulletin for the false codes.
I did suspect other issues as well, hence the suggestion for a compression test.
Its allways good to have other opinions, and in this case good factual info, , like a tsb for the injector codes.
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Old 05-24-2012, 08:00 PM
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I think you are right. The TSB is for false codes but it says nothing about poor performance. Like I said you still may have other issues. A complete compression test would be the next step.
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