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engine trouble need help!

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Old Jul 30, 2011 | 05:21 PM
  #41  
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I can use one at work but that would mean driving the truck there and taking the intake manifold off to get good access to the distributor and putting it back together and hoping I fixed the problem I have a good scanner for the obd-II port under the dash but no where under that does it say anything about the fuel sync procedures like explained in the service manual. The way the manual explains it it sounds like a completely different plug for a completely different purpose
 
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Old Jul 30, 2011 | 06:41 PM
  #42  
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That's what I was wondering too.... best bet might be to call the dealer, and see what they have to say. If they can set it for ya fairly cheap, at least you would know it was 'right'.
 
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Old Jul 30, 2011 | 08:06 PM
  #43  
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Yea I might have to call the dealer I just don't want to have to spend money on this if it is not the problem I'm going to go test my injectors now and report back later on
 
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Old Jul 30, 2011 | 08:17 PM
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If I unplug one Injector at a time at idle the rpms should drop noticeably everytime I unplug one correct?
 
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Old Jul 30, 2011 | 08:25 PM
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Yep. Should be able to hear the drop with no trouble at all.
 
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Old Jul 30, 2011 | 08:46 PM
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I could hear the drop On some and others it seemed like no drop at all...that tells me they are staying open
 
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Old Jul 30, 2011 | 08:57 PM
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I had a freind watch the tach as I unplugged them just to make sure the thinly cam wasn't fooling my ears and he said the tach did not move at all for any of them and I listened a little more carefully and I really didn't hear anything either
 
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Old Jul 30, 2011 | 09:06 PM
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Sorry I'm typing this on my phone I meant to say thumpy cam
 
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Old Jul 30, 2011 | 09:38 PM
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It isn't going to change much.... may not be able to tell on the factory tach... also, the higher the idle, the less of a drop you will see as well.

I think if you disconnect the battery, and turn the key on, the IAC will run itself all the way in, and stay there till you start cranking. (I think.) So, do the PCM reset thing, turn the key on, and when the IAC runs itself all the way shut, turn off the ignition, and disconnect the IAC. This will set the engine to run at minimum idle. (which is adjustable.... stock I think is like 5 or 6 hundred RPM....... with your cam..... set it where it will stay running on its own, but, barely.)

With the engine running in that configuration, start disconnecting injectors again, one at a time. If an injector is working correctly, you should notice a difference when you pull the plug....... the engine may even stall.
 
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Old Jul 30, 2011 | 10:50 PM
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Alright I will try that tommorow I took the injectors out to clean them up so I'll install them tommorow and play with the IAC I really do appreciate the help guys and if anyone has anything they think I should try throw it out there cause I'm kinda lost when it cones to computers
 
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