1984 Chevrolet Corvette Chevy Crossfire M Getting Pulse Passenger Side Tbi

1984 CHEVROLET CORVETTE
146,000 MILES
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MATTHEWWILSON
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I have a 1984 Chevy Corvette Crossfire and I'm getting pulse to the passenger side tbi but not the driver side.I replaced the fuel pump, fuel filter, and all the fuses in the block. The problem started right after this. I checked alot of things and thought that it was the ecm but when I changed it out I still had the same problem. I tested the injector with a 9v battery and it fires and has plenty of fuel pressure. When I switched the connector from the driverside to the passenger side injector it would not fire so im not sure if it is the connector or something else that is causing the connector not to get power.
Apr 7, 2013 at 6:54 PM
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ASEMASTER6371
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is there a 12 volt signal key on engine off to the connector???

Roy
Apr 7, 2013 at 7:21 PM
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MATTHEWWILSON
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no power to the connector at all.
Apr 7, 2013 at 7:42 PM
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ASEMASTER6371
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according to the wire diagram, there are 2 3 amp fuses in the fuse block. one for power to each injector. re test them with a test light.

Roy
Apr 7, 2013 at 7:47 PM
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MATTHEWWILSON
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That was one of the first things that I did and the fuses are good, I even went out and replaced them with 2 new fuses just to make sure. Of course I tested those to make sure they were good before inserting them.
Apr 7, 2013 at 7:51 PM
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ASEMASTER6371
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ok, is there 12 volts at the fuse???

Roy
Apr 7, 2013 at 7:55 PM
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MATTHEWWILSON
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Yes
Apr 7, 2013 at 7:58 PM
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ASEMASTER6371
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then you have a wiring issue between the fuse block and the injector. the wire needs to be traced to look for a break or bad connection.

at the connectors, one connector has a red wire that is 12 volts and the other looks to be white wire that should have 12 volts

Roy
Apr 7, 2013 at 8:01 PM
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MATTHEWWILSON
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OK I will check that and get back to you, my question is why would this problem pop up out of no where when I changed the fuel pump? and fuses.
Apr 7, 2013 at 8:04 PM
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ASEMASTER6371
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29 year old car. dont think you caused it by changing the pump. wiring gets brittle after all this time.

Roy
Apr 7, 2013 at 8:09 PM
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MATTHEWWILSON
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Oh OK good to know, thank you for the information sir and I will let you know what I find out.
Apr 7, 2013 at 8:17 PM
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ASEMASTER6371
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good luck. cross fire is a great system. just need to know how to tune it correctly.

Roy
Apr 7, 2013 at 8:18 PM
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MATTHEWWILSON
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Exactly I love it when its running. Thanks again.
Apr 7, 2013 at 8:28 PM
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ASEMASTER6371
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good luck
Apr 7, 2013 at 8:29 PM
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