Another problem with the NA car (fixed) - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-24-2007, 05:01 PM   #1
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Default Another problem with the NA car (fixed)

Put the L67 injectors and a reprogrammed chip for the higher flow injectors and now it doesnt start. It cranks but doesnt fire. Any ideas?
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Old 12-24-2007, 05:04 PM   #2
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Does it smell really rich or lean?

See if it will start with the vac hose disconnected from the FPR. That will tell you that you need more fuel.

It just may be that the injector constant needs some extra tweaking..
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Old 12-24-2007, 05:09 PM   #3
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Ok, i emailed Ryan also

I will disconnect the vac hose and try it
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Old 12-24-2007, 05:17 PM   #4
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I tried unplugging the vac line. It tried to fire but couldnt.

So i left it unplugged tried a few more times. Then plugged it back in and tried. It is atleast trying to fire now. It is like whine whine whine pop pop
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Old 12-24-2007, 06:00 PM   #5
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Just went out and tried again and it started dunno lol
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Old 12-24-2007, 07:34 PM   #6
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Now you can see how far your ltft'* are out of wack and have Ryan compensate.
Drive it around for a little while first and let it finish trying to make up for different fueling on it'* own.
I think it only took him 2 burns to get my fuel injector constant to where it should be.
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