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#31
02-27-2009, 12:32 PM
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Re: Another CPI How-to (focus on regulator)
Quote:
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1993 Olds Bravada 4.3L CPI 1999 GMC Safari SLE AWD 2002 Chevy Astro LT AWD 
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#33
05-23-2009, 02:10 PM
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Re: Another CPI How-to (focus on regulator)
Quote:
__________________
1993 Olds Bravada 4.3L CPI 1999 GMC Safari SLE AWD 2002 Chevy Astro LT AWD
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#34
07-27-2009, 07:58 PM
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Re: Another CPI How-to (focus on regulator)
Ok I changed out my fuel lines with the nut kit, put a new gasket and cleaned out the manifold as best I could. I figured I would be good to go. Well I had a pretty good miss and idle so I figured well I must have messed up a spark plug wire due to all the handling. So new spark plug wires and spark plugs. On taking out the plugs ever one one of them looked great except for one. The front cylinder on the drivers side. The plug was just covered with soot. So I thought this must be the one with the bad plug wire. Any get everything buttoned up and fire it up. Still had a slight miss and my service enging light came on. So im now thinking the CPI unit that injector poppet must be stuck open or its just not working. Going to drive it a week or so and check my gas milage to see if any improvement over the fuel lines leaking. The one was leaking. Every morning I have to floor it and crank it 2x for it to start. Now it just fires up on the first instant. But the miss is whats bothering me now. I also found this link with some more complete info on everything you need to replace it all
http://www.lindertech.com/dirty_dzn.htm
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#35
07-27-2009, 08:08 PM
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Re: Another CPI How-to (focus on regulator)
You might want to throw a bottle of Chevron Techron in the tank if you suspect a dirty or stuck poppet - the concentrate. That's what GM uses under their label.
__________________
1993 Olds Bravada 4.3L CPI 1999 GMC Safari SLE AWD 2002 Chevy Astro LT AWD
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#36
02-14-2010, 09:47 AM
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Re: Another CPI How-to (focus on regulator)
wow, what a great thread. it would have taken me far more time and money to diagnose this on my own with out a lil guidence. thanks a lot for a great how-to!
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