Nissan 370Z Forum  

P0302 Cylinder Misfire

Originally Posted by GrayGhost It is possible for me to be blind/oblivious, but where in the FSM did you find the procedure to diagnose a misfire? How did they test

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Like Tree10Likes

 
 
LinkBack Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 03-22-2019, 03:24 PM   #15 (permalink)
Base Member
 
Join Date: Mar 2018
Location: NY
Posts: 11
Drives: 2016 370 Nismo
Rep Power: 9
Capncorroded is on a distinguished road
Default

Quote:
Originally Posted by GrayGhost View Post
It is possible for me to be blind/oblivious, but where in the FSM did you find the procedure to diagnose a misfire?

How did they test the ecm to determine it failed?

I have been chasing a random misfire code for some time. Changed out spark plugs, tested each coil pack, and did a vacuum leak test. No findings. Doesn’t feel like i have a misfire either, just throws the code and i have a high idle 1k.


Sent from my iPhone using Tapatalk
https://www.nicoclub.com/FSM/370Z/Coupe/2016/

EC - Page 297 Is where I started with the Misfire codes. I had a general misfire (p0300) and a constant Misfire Cyl #2 (P0302)

I read the technicians hand notes about his diagnostic procedure - He pretty much did everything I was capable of doing with a multi-meter, but was able to read some more in depth stuff with Consult and a scope. He did (according to his notes) verify the ecm was not sending a signal to cyl #2.

When I was testing, I had continuity of the signal wire from the ECM harness to the coil pack harness I knew there was not a broken wire, and figured it was the ECM. I was just not capable of testing the actual ecm.
Capncorroded is offline   Reply With Quote
 

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Multiple Cylinder Misfire P0300 dreamer27 Engine & Drivetrain 36 02-27-2020 01:23 PM
Cylinder 5 Misfire elhombre Engine & Drivetrain 2 10-08-2017 12:58 PM
Under power and cylinder 5 misfire Rob298mx Forced Induction 1 06-30-2016 06:37 AM
Check Engine Light Error Code P0300 multiple cylinder misfire. reynald3616 Nissan 370Z Warranty / Scheduled Maintenance / Servicing / Repairs 4 12-15-2015 06:17 AM
Random Cylinder Misfire with CAI/Short Ram Intake foodgoesNryan Intake/Exhaust 4 12-10-2014 12:05 PM


All times are GMT -5. The time now is 07:18 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2