okay my 86 fiero is givin me big troubles it has the hardest time starting up and then finally when it does start it revs up to about 1500 then stalls out even if i give it gas. ive replaced a ton of stuff i had good fuel prssure but im not sure if i do now or not and i can hear the fuel pump wind up when i flip the key on, the car smells like its running rich and blows blue smoke, im almost fed up with this car!
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01:22 AM
PFF
System Bot
86fiero-se Member
Posts: 108 From: Cambridge, Ontario, Canada Registered: Aug 2007
Check the fuse. I had the same problem on my 1986 duke. The fuse was really lose in the fuse box and would cause problems getting a continuos fuel spray into the throttle body. I took a screw driver and bent the relays in and it solved the problem.
Although if you are getting a lot of blue smoke you might have other problems as well.
I did a complete rebuild job on my Duke and put about 30 miles on it and then decided to do a V8 swap. I sure wish I would have decided on the swap before sinking $1000 grand into that old Duke. I just pulled the engine and did the swap last weekend. Live and learn.
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08:11 PM
fierodeletre Member
Posts: 834 From: Behind Animal's Drum Set. Registered: Oct 2006
Do what Dodgerunner said. Pull the air cleaner off the TB, turn the ket to run, but don't start it. Make sure the fuel pump doesn't sound like it's coming apart, and make sure you can't see any fuel dripping from the injector. Are you pulling any codes?
------------------ If you can't be good, be good at it.
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09:36 PM
86fiero-se Member
Posts: 108 From: Cambridge, Ontario, Canada Registered: Aug 2007
i have just replaced all the injector seals on it, and no its not leaking any fuel, the fuel pump sounds fine i can hear it fire up when i flip the key on, i am pulling two codes off of it when i checked it with a scan tool, it gave me MAP voltage to high, MAP voltage to low? so i unhooked the map sensor and bam it revs up to about 2500 rpm but it does seem to run a little better even tho its at a high rpm. also tonight i pulled the car out side and my driveway is on a bit of a slope and now the car will not fire at all, not even a little sputter. i can hear the fuel pump. but the injector and in the tbi is dry ? and it has a little under a half tank of fuel.
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09:45 PM
86fiero-se Member
Posts: 108 From: Cambridge, Ontario, Canada Registered: Aug 2007
Oh, and if you suspect that fuel is not being pumped, don't leave it on for long. Those things fry easily when dry.
------------------ 1984 Fiero SE, White, first love, sold... 1986 Fiero SE 2M6, gold 1988 Fiero 2M4, the Fox 1987 Fiero GT, Blue, 3.4/4T40 Still looking for that perfect CJB 88 GT...
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03:21 AM
86fiero-se Member
Posts: 108 From: Cambridge, Ontario, Canada Registered: Aug 2007
Unplug your fuel pump relay. Remove the air breather. Open the throttle. Add one tablespoon or so of gas down the throttle bore. Release the throttle. Try to start it up keep your foot off of the gas peddle. If it fires and runs till the gas is gone, then you have problems with the fuel supply. If it does not run, it is an ignition problem. Un-plugging the relay takes the fuel supply out of the picture and focuses on the ignition circuts. We need to figure out which is the culprit first. Joe