Question about 1992 Chevrolet Corvette
LT1 has no power to left side engine fuel injectors (cylinders 2-8). Car runs, but has no power.
Very important that if you are not savvy of working on your Vette ...you would be better off - taking your car to a dealership for repairs on your trouble codes. However if you feel that you want to, First locate your car's alcl this component is located just below the instrument panel and to the left of the center console. Remove the plastic cover the first two slots to your right are the A & B slots.
The A slot is the diagnostic slot and the B slot is the ground slot. Insert the computer key into these slots if you do not have a computer key, a paper clip or wire jumper clip will do, (with the engine off) this is very important...now only put the ignition key to on ( not start !!!) the check engine light will display a code 12 which is one flash followed by two flashes. This code will be flashed three times ..followed by the trouble code stored in your car's computer.
What ever the code is it will be flashed three times. Have a paper and pencil ready and write down the code.
Code #12: Normal No Codes.
Code #13: Open Oxygen Sensor Circuit.
Code #14: Coolant Sensor Circuit Low.
Code #15: Coolant Sensor Circuit High.
Code #21: Throttle Position Sensor High.
Code #22: Throttle Position Sensor Low.
Code #23: Manifold Air Temperature Circuit High.
Code #24: Vehicle Speed Sensor.
Code #25: Manifold Air Temperature Circuit Low.
Code #32: EGR System Failure.
Code #33: Mass Air Flow Sensor High.
Code #34: Mass Air Flow Sensor Low.
Code #36: Mas Air Flow Sensor Burn-Off Function Fault.
Code #41: Cylinder Select Error.
Code #42: Electronic Spark Timing.
Code #43: Electronic Spark Control.
Code #44: Lean Exhaust indication.
Code #45: Rich Exhaust Indication.
Code #46: Vehicle Anti Theft Fault.
Code #51: Faulty Mem-Cal.
Code #52: Fuel Calpak Missing.
Code #52(1990-91 Corvette Only): Engine Oil Temperature Sensor Low.
Code #53: System Over Voltage.
Code #54: Fuel Pump Circuit Low Voltage.
Code #55: Defective ECM.
Code #62: Engine Oil Temperature Sensor Circuit High.
Please remember that if you have the computer key installed in the alcl and you start the engine (you will ruin the engine's computer) only put the ignition to on (not to start).
If you should get a check engine soon display.. you can use the above procedure and codes to buy the right part or at the very least to keep from getting taken for a ride and be made to pay hight prices for some inexpensive module that you could have installed yourself.
If your engine displays a trouble code ... your engine will go into limp mode ..it will still run but very poorly. You might be able to reset the computer if it will not start (just to get home) by disconnecting both battery cables and re-installing them ...this is not recommended ..but if you are stranded it might help unitl you get your car home or to a repair shop..good luck.
Good luck and hope this helps.
Posted on May 08, 2009
The ECM is very possible.I assume cylinder 4 injector is providing gas?The connection for cylinder 1 is probably a connector with pins correct?If you can bypass the ECM,that would get you closer if not give the answer.I would try using a wire straight from the battery to the injector electric somehow without damaging the wires.For years,if i had an extension cord which was old,I cut off the ends and save it just for troubleshooting occasions like this is a good example.If you do the bypass,try to hold the wire with something other than skin.I have leather gardening gloves,pliers.The gloves are better for steadiness and pliers are metal.It is not likely that it should melt but doing electrical work for so many years,an ounce of prevention is worth way way more than a pound of cure.If it did melt,it would stick and probably a couple weeks worth of pain.I would like to know how you make out.If you reply back to this post I will get an autolink to your post.Good luck! Greg
P.S.Was your error code from the car's own system and not a shop?I am trying to figure out what year that system started.
Posted on Sep 18, 2010
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