LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Stumble below 2k RPMs?

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Old Mar 15, 2005 | 08:24 AM
  #16  
transamdude95's Avatar
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From: Indianapolis, IN
Re: Stumble below 2k RPMs?

Distributor ignition system (faulty high resolution pulse or extra low resolution pulse detected)

I got that from Shoebox's website. You should do a search for what this code means or start a new thread. I'm guessing Opti.
Old Mar 15, 2005 | 03:25 PM
  #17  
JinXed_95Z's Avatar
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From: Warner Robins, GA
Re: Stumble below 2k RPMs?

UPDATE:
Got the new EGR valve on and the car seems like it runs a lot smoother. BUT! It still stumbles and vibrates below 2000 rpms maybe not quite as badly but it definitely does. So I'm at a loss.. its not a huge deal, but it bugs me not being able to figure it out. I'll let ya'll know if I find out anything.

The car always was kind of a dog below 2k just never had this awful vibration. Back to the drawing board.

-James
Old Mar 17, 2005 | 11:54 PM
  #18  
JinXed_95Z's Avatar
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From: Warner Robins, GA
Re: Stumble below 2k RPMs?

Ok, well at least I'm learning a lot with all the reading & tinkering.

Got an AKM cable and did a datamaster run. I got DTC 34: MAP low throughout the run - I checked the connector and although the clip is broken off it looks intact and in good shape and plugs in securely. So I went and bought a new sensor and it did nothing, still got DTC 34. So now, what should be my next course of action with the MAP?

Also could anybody take a look at my datamaster file and point out anything that might be out of the ordinary? I basically understand what I'm looking at but don't know what normal ranges are. http://members.***.net/jjinx4997/95zDMrun.uni


Thanks guys
-James
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