Hi guys!
I've changed my spark plugs, spark plug seals, cap, wires and valve cover gasket yesterday. Engine (1FZ-FE) ran better than ever. But today I got a p0301 code (misfire cilinder 1).
Upon further inspection I found fuel leaking from the exhaust gasket at the catalytic converter and fuel in the tailpipe as well.
For now I can think of 2 cases:
- stuck fuel injector (probably at cilinder 1). Could be because I disturbed the harness near the firewall/egr pipe. I wrapped the harness a while ago to prevent damage from the EGR pipe. New wrap still looks good.
- I havent reset the ECU yet after changing my spark plugs. Could it be the ECU needs to relearn and that it is giving to much fuel? The old spark plugs were in a bad shape.
I hope it could be option number 2, but probably not?
In case of a stuck injector: is there a way to check if there is a short on the harness without taking it all apart?
Thanks for you input!
I've changed my spark plugs, spark plug seals, cap, wires and valve cover gasket yesterday. Engine (1FZ-FE) ran better than ever. But today I got a p0301 code (misfire cilinder 1).
Upon further inspection I found fuel leaking from the exhaust gasket at the catalytic converter and fuel in the tailpipe as well.
For now I can think of 2 cases:
- stuck fuel injector (probably at cilinder 1). Could be because I disturbed the harness near the firewall/egr pipe. I wrapped the harness a while ago to prevent damage from the EGR pipe. New wrap still looks good.
- I havent reset the ECU yet after changing my spark plugs. Could it be the ECU needs to relearn and that it is giving to much fuel? The old spark plugs were in a bad shape.
I hope it could be option number 2, but probably not?
In case of a stuck injector: is there a way to check if there is a short on the harness without taking it all apart?
Thanks for you input!