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Forums -> C3 Fuel, Emission Control, and Exhaust Systems
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3/11/10 8:45am - Reply: '82 collector edition wont start....Help'
dans1yy07 Lifetime Member
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Brockport, NY - USA

Vette(s):
1982 Collector Edition

Joined: 1/2/2003
Posts: 44
Not yet. have to check fuel pump relay. ALso service manual said to check ecm connections. will recheck them. Tested fuel pump heard i running. Will change fuel filter. thanks Dan
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3/15/10 2:46pm - Reply: '82 collector edition wont start....Help'
dans1yy07 Lifetime Member
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Brockport, NY - USA

Vette(s):
1982 Collector Edition

Joined: 1/2/2003
Posts: 44

I ordered a rebuilt ecm from ecklers and installed it today. The vette started but would not stay running. tried 3 times but each time it sputtered and backfired thru the throttle body. will not idle or stay running. Ordered new fuel pressure relay from ecklers and is on it way.

Was thinking about putting a 85 fuel pump in it but not sure how to install it.  Looking for a C3 mechanic near me. Any help appreciated.

Dan CryCryEvil Smile

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3/15/10 5:16pm - Reply: '82 collector edition wont start....Help'
DaveM Lifetime Member
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Flanders, NJ - USA

Vette(s):
1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.

Joined: 1/27/2004
Posts: 2530
Where is Brockport, NY? The fuel pump is not hard to change. When you put a new ECM in there it needs to be driven so it can learn, it should smooth out once it does, unless there is something else going on. I put the '85 pump in mine and it ran much better. The old one could not deliver the volumn needed at higher revs. Don't worry about the higher pressure because the throttle body has a pressure regulator.
Good luck,
Dave


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3/15/10 7:22pm - Reply: '82 collector edition wont start....Help'
dskopp
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Oak Creek, WI - USA

Vette(s):
1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

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3/15/10 10:46pm - Reply: '82 collector edition wont start....Help'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

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You need to determine what fuel pressure you have, if any. You should be able to buy/borrow a pressure gauge from a parts store. There is a shrader valve in the fuel line by the throttle body, with a screw on cap on it. take the cap off, screw the gauge onto the fitting, and crank it. See what kind of pressure it has. You actually should see pressure there for a few seconds even without cranking the engine.
It kinda sounds like it's getting just enough fuel to start/sputter, but obviously not enough to run. With the air cleaner off, can you see a decent fuel spray from either/both of the injectors for the few seconds it runs?(might need a helper for that).


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3/23/10 2:26am - Reply: '82 collector edition wont start....Help'
dans1yy07 Lifetime Member
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Brockport, NY - USA

Vette(s):
1982 Collector Edition

Joined: 1/2/2003
Posts: 44

Not running yet. but have fuel pump and new filter and new gasket ready to go in also have new fuel pump relay for it tho not the same as the relay that was on the back of the coputer mounting plate. different shape and cinnections .

Dan

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 Forums -> C3 Fuel, Emission Control, and Exhaust Systems
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