P0302 Cylinder Misfire

SouthArk370Z · 03-07-2019, 09:34 PM

How many miles have you driven since you restored power? When power to the ECM is removed, it loses all the run-time parameters and resets to defaults. It takes a while for the ECM to relearn the params. Take it for a 15 minute drive, under varying conditions, and see if things improve.

Edit: " I do know what an electrical condenser is"
An electrical condenser (AKA capacitor) is not the same thing as an A/C condenser (a heat exchanger).

Capncorroded · 03-07-2019, 10:34 PM

I haven't driven it at all - too much snow on roads. Flashing SES and down 1 cylinder should not be a default or relearn ecu from disconnecting a battery.

I Don't understand the edit statement.
As a current seasoned hvac technician with a large automotive background, I know the difference, but thanks for the basics lol...thus why I said "which I don't believe"

03-07-2019, 09:34 PM	#1 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	How many miles have you driven since you restored power? When power to the ECM is removed, it loses all the run-time parameters and resets to defaults. It takes a while for the ECM to relearn the params. Take it for a 15 minute drive, under varying conditions, and see if things improve. Edit: " I do know what an electrical condenser is" An electrical condenser (AKA capacitor) is not the same thing as an A/C condenser (a heat exchanger). __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma Last edited by SouthArk370Z; 03-07-2019 at 09:37 PM.

03-07-2019, 10:34 PM	#2 (permalink)
Capncorroded Base Member Join Date: Mar 2018 Location: NY Posts: 11 Drives: 2016 370 Nismo Rep Power: 8	I haven't driven it at all - too much snow on roads. Flashing SES and down 1 cylinder should not be a default or relearn ecu from disconnecting a battery. I Don't understand the edit statement. As a current seasoned hvac technician with a large automotive background, I know the difference, but thanks for the basics lol...thus why I said "which I don't believe" Last edited by Capncorroded; 03-07-2019 at 10:44 PM.

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