04-10-2008, 09:40 pm
| #1 |
| Guest Posts: n/a
|  fuel pump
I have a 1990 vette I have spent the last three years rebuilding.Except for paint it is done.The only problem I have is the fuel pump won't turn on.I have checked fuses and changed the starter relay.I am stumped and would really like to start this car up. Any suggestions would be appreciated.Also I would like to know if the fuel pump is controlled by the vats.
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04-11-2008, 04:26 am
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| GM World Class Certified Technician  Join Date: Nov 2006 Location: New Haven Ct Posts: 5,141
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Hi there, The fuel pump is NOT controlled by the VATS system. You can check the 3 wire harness to make sure you have power on the purple and grey wires. Allthebest, c4c5 | ||||||||||||||||||||
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04-13-2008, 08:01 pm
| #3 |
| Guest Posts: n/a
| fuel pump
Hello, Finally some free time.I get 11 volts on the gray and 2 volts on the purple... Thanks/Dave Replaced wire,fuel pump working properly. Thanks/Dave |
| Last edited by poppy53; 04-13-2008 at 10:18 pm.. Reason: problem solved | |
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04-14-2008, 06:39 pm
| #4 |
| Guest Posts: n/a
| fuel injectors
OK this is making me crazy.I get the fuel pump working try to fire it up and no gas to the cylinders.Spark plugs are dry.The fuel rail is full and pressurized. It seems to me that the injectors aren't functioning. Once again any suggestions would greatly be appreciated. Thanks/Dave |
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04-15-2008, 04:07 am
| #5 | ||||||||||||||||||||
| GM World Class Certified Technician Join Date: Nov 2006 Location: New Haven Ct Posts: 5,141
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HI there, Check to see if you have spark to any of the plugs?? Allthebest, c4c5 | ||||||||||||||||||||
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04-15-2008, 09:14 am
| #6 |
| Guest Posts: n/a
| spark plugs
Yes I do have spark to the plugs. I haven't connected any of the vaccum lines up yet.I'll have to go to the library to get the schematics friday to do this.I don't know if this has anything to do with the injectors but thought I would let you know. Thanks/Dave |
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04-15-2008, 09:20 am
| #7 | ||||||||||||||||||||
| GM World Class Certified Technician Join Date: Nov 2006 Location: New Haven Ct Posts: 5,141
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HI there, Then you will need to check to see if there is POWER going to the fuel injectors. Also, check the resistance of the fuel injectors. 16.5 ohms. Allthebest, c4c5 | ||||||||||||||||||||
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05-14-2008, 01:36 pm
| #8 | ||||||||||||||||||||
| Corvette Enthusiast Join Date: Nov 2006 Posts: 35
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Ok so whats happening any word?
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