Recently i tossed a 83 turbo in my 280zx and now whenever I give it any kind of gas it just sputters and dies. The car starts up and idles just fine...

Also.. when i had my old 81 ecu in it the car would die almost instantly if i pulled the afm harness, but now since replacing it with the 83 i can remove it and it continues to idle just fine with a slight stutter when i pull it.

My current setup is all stock, engine from a 81 280zx turbo, 83 dizzy and i'm currently using a 81 harness that has the resistor pack thats bypassed.

I searched for awhile on my wire harness schematics and really didn't see anything different between the 81 harness and the 83 ecu, especially with the afm wiring.

i'm confounded here.

 

I would prefer to put this in your other trouble shooting threads to we don't have to re-live what was already mentioned.

But here we go with the basics:
-Have you checked the timing? What is it set to?
-Have you adjusted / calibrated the TPS?
-Have you checked the fuel pressure?
-Have you adjusted the AFM?
-Have you cleaned all sensor connections?
-Have you wiggled the ecu plug wires?
-Have you checked the spark plug tips to see if they are all the same? Wet? Dry? Color?

IF all that DOES check out... I would suspect something w/ your rigged dizzy or bypassed resistors.

 

Rigged dizzy? Relive?

Wonderful response.

 

^^^ And that was a good response to all my "check" questions.

Would you call the 83 dizzy on an 81 harness "not rigged" ?

 

lol maybe modified instead of rigged...depends on how it looks haha