Hi guys, got a new problem with my mustang v6.
I get CEL during cold starts ponting to cyl4 misfire. I changed plugs, tried swapping wires cyl5 but still same code. So it.is safe to assume the wires are fine.
Once the engine has started I just delete the MIL using my ELM327. Car runs great. It will not throw a MIL until I park it overnight again.
Did some research and it could be a bad coil pack or bad fuel injector.
Before I go to the dealer to buy parts what could be more likely to be thw cause? Injector or coil pack?
any tips on how to further isolate the problem before replacing parts?
I'm trying to avoid replacing parts that are not bad.
I get CEL during cold starts ponting to cyl4 misfire. I changed plugs, tried swapping wires cyl5 but still same code. So it.is safe to assume the wires are fine.
Once the engine has started I just delete the MIL using my ELM327. Car runs great. It will not throw a MIL until I park it overnight again.
Did some research and it could be a bad coil pack or bad fuel injector.
Before I go to the dealer to buy parts what could be more likely to be thw cause? Injector or coil pack?
any tips on how to further isolate the problem before replacing parts?
I'm trying to avoid replacing parts that are not bad.