Hi I’m at my wits end at the moment. I’m having two misfire codes and two injector codes on the same cylinders. I swapped everything already. If I go to the ecu c4 connector where all the fuel injector wires go into and wiggle it the car will literally shut off. Is their a way to fix the pins in there or do I need a new harness ? Has anyone experienced this. The car drives .

 

First of all, why not tell us what the codes are? You are making us guess - that' wastes everyone's time.

Second, I"m having a hard time that connector C4 would be the issue. But then, I've never wiggled that connector to see what will happen.

 

It was c4 connector . Had to remove the external housing with the clip on it and connect it that way check engine light immediately off. I was more concerned about replacing it or a fix not a diag as much. So if anyone is ever throwing injector codes and misfires and you’ve already swapped everything and double checked the wires. Make sure your getting a good connection there.