I agree.
I ended up using my GT harness on the Cobra motor in order to get everything working correctly.


If both cars had similar engines then I would recommend using the original harness that was in the car. 5.0 to 5.0,.. but not 4 or 6 cylinder to 5.0 That obviously would not work.

What was the car originally that you put the motor into?

Hurst

 

4 cyl

 

You have to use all the wiring from that 93 dash and all . All the way to the back as well

 

Sheesh.
Talk about a nightmare job.

I was too lazy to do a heater core. No way I would want to do that.

Was reading the other link,..
Was mentioned about swapping vin plates over between the cars because the first had a salvage title. Didnt like the red interior of the original. I think it would have been easier to just swap over the interior from one car to the other.

Hurst

 

We have done dozens of conversions and with the 88 -93 mismatch it will not run.

 

Ok what you need to find is an 93 ecm harness. Theat will be a plug and play with your wiring in the car now. Look by the ecm plug in the car there is a round grey plug. If it has four wires you have to a very late 92 or 93 harness. If it has six then you can only use a 91 through mid 92 one. i would recommend finding this and making your project alot easier and correct for the 93. Sorry I misunderstood that you all ready had all the 93 dash and wiring in the car.

 

one other thing that my hubby just thought of since the tranny was converted...

miles i know you said you put the old bypassed NSS switch in the 93, but where did you put it? under the dash or under the car? the car won't start if the circuit is open in either location.

the car you bought from us was an automatic. there is a black plug that has a red wire with a blue tracer line that comes out of the plug and goes right back into the plug (it is just a jumper). because the car was an auto, the jumper is close to where the clutch pedal should be.

because you took the automatic out of the car, you need to make sure you move the jumper from under the dash to the wiring that hangs outside the transmission tunnel where the jumper should be located for stick shifts. its the same black plug that the jumper needs to be plugged into.

you could also try unplugging the inertia switch and jump power to the fuel pump side of the plug and then see if the car will start.

if it does start, then i would just figure out a way to start the fuel pump with key on.

if it doesn't start, then you may have a more serious electrical problem on your hands.

 

okay, i figured out the fuse box problem. i didnt know you need the headlights on to have power running to everything in the fuse box lol... i finally got the starter to crank over, i wish i would have got on here earlier and seen wendys post. i found the black plug, jumped it, the car cranks over. the fuel pump still does not come on.

the old car (black) is an 88 LX, the new car is a 93 LX. I only swapped over the engine harness, not the body harness also.

so even if i bypass the fuel pump stuff and wire it up some way to come on with the key or with a switch will the car still not start?

i bypassed both NNS's.

 

Providing the ECM pins are reading enough sensors,.. if you get the fuel pump to come one (Force feed it a 12v power source) it should start.

Thats not a 100% guarantee that it will be running properly if the sensors are not all working properly. The engine will run with only the MAF and TPS sensors functioning,.. though it will be in open loop mode and will not go into closed loop until it gets data back from the O2 sensors. Thats how the DOHC motor was running in my GT. Strictly off the MAF, AIT and TPS sensors,.. thats all I had that was functioning at the time.

You will need to get someone to verify that all sensors are working and the computer is going into closed loop mode once you get the motor started. At least then it should be drivable to get it to where someone can look at it. Once you get it working then you should be able get on it.

Hurst

 

where could i go to get all this done? and about how much would it cost?