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Injector problems ....

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Old Mar 29, 2004 | 09:17 PM
  #31  
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You mentioned you changed some tables to match your old setup, lets reflash your pcm and start with a known good pcm that is completely stock.
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Old Mar 29, 2004 | 09:29 PM
  #32  
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Sounds good to me ... you got my addy on file or do I need to email or call you?
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Old Mar 30, 2004 | 06:08 PM
  #33  
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Found the problem!!!

I went to change the injectors today. When I pulled the old ones off to inspect them, I notice little bits hanging from the o-rings on the injectors. I look at them closer and they look like they have been pinched, torn and scratched up. It looks like someone was playing a game with them, how many times cau you stick it in the hole.

Anyways, I replaced the o-rings, got the injectors back in, everything else bolted up, and started her up. The damn thing was idling as smooth as it has ever idled before. I watched the STFT's hang right around 0, where they used to creep thier way up to +50. I left it running for a few minutes, came back to check on it, the STFT's were still right where they were when I left them.

It turns out the guys out at MagnaCharger used just regular old o-rings. Regular o-rings aren't rated for gas! I guess in a normal situation they would be fine, but sitting up for so long with no movement, and such, I guess the gas seeped through and got to them.

I haven't taken it out yet to see how it runs, I'm still working on getting the idle decent. It was so jacked from all the troubleshooting it's having difficulties now.
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Old Mar 30, 2004 | 06:13 PM
  #34  
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Kick ***! glad you got it figured out.
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Old Mar 30, 2004 | 06:18 PM
  #35  
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You don't know HOW much better I feel about the whole thing now.
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Old Mar 30, 2004 | 06:21 PM
  #36  
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Well stupid problems are always annoying!
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Old Mar 31, 2004 | 11:14 PM
  #37  
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where did you get replacement orings for gas injectors? i would like to replace my orings on my marine injectors before i install them... also while test fitting them in my ls1 manifold, i tore a ring. lol. congrats on your solving the prob.
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Old Mar 31, 2004 | 11:27 PM
  #38  
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I used just regular O-rings. The dealership (Nehl's here in Marshall) said they were 12 something and could get them next day. I ended up going to ABC to get them.

How's your truck coming along? I'm trying to plan a day at the track again. I'm thinking not this weekend, but the next.
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