dash wiring nightmare!
Thread Starter
8th Gear
Joined: May 2016
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dash wiring nightmare!
I have a 1992 coupe 6 speed C68 HVAC. It was stolen and dash wiring was bypassed in different spots. Acquired a used harness but it did not have C68 HVAC it had C60 HVAC. Need to know if i can use a 1990
6 speed C68 HVAC harness. Please help me out with some suggestions. I'm at my wits end.
6 speed C68 HVAC harness. Please help me out with some suggestions. I'm at my wits end.
Team Owner
Joined: Sep 2003
Posts: 25,393
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I have a 1992 coupe 6 speed C68 HVAC. It was stolen and dash wiring was bypassed in different spots. Acquired a used harness but it did not have C68 HVAC it had C60 HVAC. Need to know if i can use a 1990
6 speed C68 HVAC harness. Please help me out with some suggestions. I'm at my wits end.
6 speed C68 HVAC harness. Please help me out with some suggestions. I'm at my wits end.
In how many areas was the harness tampered with? If it's out and on the ground maybe. Was it just whacked to enable the crank/run?
Thread Starter
8th Gear
Joined: May 2016
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You need a correct harness, '92 was very different from the '90 you've located. The IP harness needs to match the M6, the C68 AC and if the car was a T61 (Daytime running) that needs to be present also. A very talented person could "maybe" accomplish it with a '93 BUT I'd say the '92 correct for most of us.
In how many areas was the harness tampered with? If it's out and on the ground maybe. Was it just whacked to enable the crank/run?
In how many areas was the harness tampered with? If it's out and on the ground maybe. Was it just whacked to enable the crank/run?
Team Owner
Joined: Sep 2003
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It might be good to have if you're attempting this sort of repair. The normally "whacked" to enable forced crank/run should be repairable I'd think using maybe connectors from the one you have and some very nice splices.
Thread Starter
8th Gear
Joined: May 2016
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ok so i replaced all the hacked wiring and connectors and the whole harnes is complete. not a single loose wiring without a connection or a connector on it. so now when i turn the key the car cranks right over using the vats setup all connected and nothing bypassed.
but it will not fire! it will just crank. there is no fuel the fuel pump is not turning on? and there is no power to the cigarete lighter circuit ok, but if: I JUMP 12VOLTS STRAIGHT TO THE CIGARETE LIGHTER THE CAR WILL THEN START RIGHT UP LIKE IT SHOULD AND IF I HIT THE THROTTLE IT WILL RUN PERFECT OK. IT WONT MISS A BEAT? BUT IF I TAKE MY FOOT OFF THE THROTTLE IT WILL DIE??????? BUT AS LONG AS I BUMP THE THROTTLE SOME IT WILL STAY RUNNING??? AND THAT IS WHERE IM AT AND IM NOT SURE WHATS GOING ON ? IT DID THIS SAME THING BEFORE I REPAIR THE HARNESS EXCEPT BEFORE I HAD TO BYPASS THE KEY WITH RESISTORS FOR THE CAR TO CRANK. SO I FIXED THAT PART FOR SURE BUT IT STILL STARTS RUNS FOR A COUPLE SECONDS THEN DIES??????? PLEASE HELP JUST POINT ME IN THE RIGHT DIRECTION IF YOU CAN THANK YOU VERY MUCH.
but it will not fire! it will just crank. there is no fuel the fuel pump is not turning on? and there is no power to the cigarete lighter circuit ok, but if: I JUMP 12VOLTS STRAIGHT TO THE CIGARETE LIGHTER THE CAR WILL THEN START RIGHT UP LIKE IT SHOULD AND IF I HIT THE THROTTLE IT WILL RUN PERFECT OK. IT WONT MISS A BEAT? BUT IF I TAKE MY FOOT OFF THE THROTTLE IT WILL DIE??????? BUT AS LONG AS I BUMP THE THROTTLE SOME IT WILL STAY RUNNING??? AND THAT IS WHERE IM AT AND IM NOT SURE WHATS GOING ON ? IT DID THIS SAME THING BEFORE I REPAIR THE HARNESS EXCEPT BEFORE I HAD TO BYPASS THE KEY WITH RESISTORS FOR THE CAR TO CRANK. SO I FIXED THAT PART FOR SURE BUT IT STILL STARTS RUNS FOR A COUPLE SECONDS THEN DIES??????? PLEASE HELP JUST POINT ME IN THE RIGHT DIRECTION IF YOU CAN THANK YOU VERY MUCH.
Thread Starter
8th Gear
Joined: May 2016
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And just so you know this is a differant ecm and prom than when i first started all this because the other one wasnt the right one or the right prom but it is now number matched could that be the stalling problem or the fuel problem does it need to be reprogramed or relearned to the car maybe?
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Melting Slicks
Joined: Aug 1999
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From: Baltimore, MD USA
Look below and behind the battery. You should see a bunch of fusible links. Link A as shown in the diagram is either blown or is not making good contact with the stud that secures all of the fusible links together.
Team Owner
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Having a spare harness you very likely have multiple spare relays also. Maybe you just swap the FP relay, check the jump-block and links as HOV suggested. FP relay for a '92 is under RH side of dash I believe, if you removed the complete IP harness you're likely familiar with the location.
You never mentioned having the FSM. Do you?
You never mentioned having the FSM. Do you?