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#1
07-15-2005, 10:08 AM
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Engine miss
1994 4.3 all of a sudden runs terrable like running out of gas.
did completet tuneup plugs,wireers cap rotor pcv fuel filter. good fuel pump preasure 14lbs. Rebuilt throtle body new injectors tps switch. did not replace idle air sensor. Runs like it is missing could not isolate one cylinder by removing spark to each one individulely. Good comp but is starting to run hot 210deg. terrable idle worse when under load terribale acceleration.No codes posted on dash (service eng) 
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#2
07-15-2005, 09:36 PM
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Re: Engine miss
Is your 4.3 a v6 or v8? I'm thinking it should be a V8. If that is the case, 14lbs of fuel pressure is not even close to enough. Should be somewhere closer to 60psi I believe.
__________________
CD 1991 W41 #142 1989 Caprice 9C1 1997 C1500 1997 Bonnie SE 1998 Olds 98 LS Recently updated: http://forums.b-body.org
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#3
07-20-2005, 10:54 AM
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Re: Re: Engine miss
Quote:
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#4
07-20-2005, 11:20 AM
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Re: Engine miss
Sorry for my previous post. I was thinking of Caprices at the time.
What's the 8th digit iof your VIN? Could be several things. EGR valve, plugged cat, etc..
__________________
CD 1991 W41 #142 1989 Caprice 9C1 1997 C1500 1997 Bonnie SE 1998 Olds 98 LS Recently updated: http://forums.b-body.org
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