M42 to M20 swap....car won't fire up

[G60 CAB]

Picked up an M20 that was swapped into another M42 car so I figured this would be a bolt on and go setup but so far no luck. I get the car to turn over, smell gas, tested for spark and there is spark but the car won't fire no matter what.

The PO did the wiring for the ECU and from one connector, two wires run to what I am guessing is the tach since its wired to the guage cluster, and the other wire just loops around to a spliced wire that runs from the ECU to fuse #5 (hoping this isn't confusing at all).

What I am looking for is what needs to be rewired to get an M20 to work in an M42 car so I can compare it to what I have done already.

I can post pics if that helps.

[kenika65]

pics

[G60 CAB]

Nm got it running.

[Stu]

What was the problem? Glad you got it running

[G60 CAB]

Had the fuel lines reversed (brain fart) and three of the injector connectors were frayed from someone (probably me) pulling on the harness, most likely with the engine hoist, and they were shorting themselves.

Now it runs, but it runs like absolute asshole. Hoping to get it running better tonight, it barely idles, stumbles and misses like crazy. This came out of a running car so this was definently something I did hahaha.