no start sr

[dori_sil8t]

ok i swapd my motor in from my old hatch to my coupe. the problem is it wont start if it does she runs like a bag-o-shit. i have fuel. i have spark.
i have checkd for leaks,loose grounds,plugs i mean everything. if i unplug cyl 3 injector nothing changes. i have had this problem before. took it to a buddy's shop. same thing injector three not firing. so i drove it home from the shop 1 min drive.. stop sign before my moms house.. boooooom she's runs mint again?? i just finish my coupe i havent driven a 240 in weeks now. im dying any input would help.:hyper:

[g6civcx]

Check fuel injector harnesses. Sometimes they get loose and the injector won't fire.

Then after shaking a little bit, the harness will make good contact again and the car will run right.


Try shaking the harness with your fingers wwith the engine idling and see. If the engine starts misfiring then you know the harness is loose.

[Z U L8R]

^ what he said. there's also a tsb about where the injector power wire branchs off in the engine harness and ends up going to all 4 cylinders where the connection comes loose or becomes corroded.

great advice @ g6

gl OP

Dave

[dori_sil8t]

see i have power to the injectors. but when i checkd them they had a weak pulse. any thoughts