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after engine swap unable to start car

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Old Jan 13, 2009 | 11:20 AM
  #1  
z28gsxr's Avatar
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From: Lynwood
Car: 91 RS Vert/98 Sierra9
Engine: 5.7/5.0
Transmission: 5spd/auto
Axle/Gears: 4th gen rear with 3.73
after engine swap unable to start car

Any ideas? here's the link to the description of the issue that i posted in tech.
https://www.thirdgen.org/forums/tech...s-305-tbi.html
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Old Jan 14, 2009 | 09:28 AM
  #2  
z28gsxr's Avatar
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From: Lynwood
Car: 91 RS Vert/98 Sierra9
Engine: 5.7/5.0
Transmission: 5spd/auto
Axle/Gears: 4th gen rear with 3.73
Re: after engine swap unable to start car

The car started. It turns out the distributor was 180 off . But now the issue is that its running extremely rich. Any ideas?
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Old Jan 14, 2009 | 11:06 AM
  #3  
Russ-So Cal's Avatar
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From: Lakewood, ca. USA
Re: after engine swap unable to start car

How long has it been running? How long does it take for the ecm to relearn. Is it possible that with some driving the ecm will learn and lean it out? Did you make any mods when you did the rebuild?
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Old Jan 14, 2009 | 11:15 AM
  #4  
z28gsxr's Avatar
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From: Lynwood
Car: 91 RS Vert/98 Sierra9
Engine: 5.7/5.0
Transmission: 5spd/auto
Axle/Gears: 4th gen rear with 3.73
Re: after engine swap unable to start car

thanx russ now that i think about it the prom that is in there was tuned for the l05. he had it tuned when i bought it and my guess would be thats why its runing rich
----------
I only let the car idle in the drive way for a few minutes but I will swap out the prom tonight and take it around the block. Thanx Russ

Last edited by z28gsxr; Jan 14, 2009 at 11:19 AM. Reason: Automerged Doublepost
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Old Jan 15, 2009 | 10:20 AM
  #5  
z28gsxr's Avatar
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Senior Member
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Joined: May 2007
Posts: 612
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From: Lynwood
Car: 91 RS Vert/98 Sierra9
Engine: 5.7/5.0
Transmission: 5spd/auto
Axle/Gears: 4th gen rear with 3.73
Re: after engine swap unable to start car

I swapped in the ecm from my 89 parts car. Its also a 5spd l03 and it idled better. I put fluid in the trans then started it up and went to put it in gear and it wouldn't go in. Completely forgot about bleeding my clutch hydrolics
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