https://g35driver.com/forums/ Have Technical Questions or Done Modifications to the G35? Find out the answer in here! (View All Posts) en Thu, 21 May 2026 00:53:44 GMT vBulletin 60 https://g35driver.com/forums/images_new_layout/misc/rss.jpg https://g35driver.com/forums/ https://g35driver.com/forums/engine-drivetrain-forced-induction/475109-need-help-diagnosing-super-lean-during-closed-loop.html Fri, 08 May 2026 09:52:02 GMT Hello, so I have an issue with my 2006 g35 coupe where it runs completely fine during open loop not reading off 02 sensors but as soon as it goes into closed loop and starts reading 02 data the air... Hello, so I have an issue with my 2006 g35 coupe where it runs completely fine during open loop not reading off 02 sensors but as soon as it goes into closed loop and starts reading 02 data the air fuel ratio will go up to 18s at idle and it will start Misfiring with a random misfire code. No other codes just the misfire code and after doing that for a bit will drop the afr super low run somewhat okay for a couple seconds then go back up and start missing again. When the 02 fuse is pulled it runs completely fine.

Ive replaced my 02 sensors, mass airflow, and don’t have any exhaust leaks and I don’t have vaccum leaks as far as I can tell. Just wondering if anyone has run into this problem and if anyone had any suggestions on what it could be? ]]> 35zabe https://g35driver.com/forums/engine-drivetrain-forced-induction/475109-need-help-diagnosing-super-lean-during-closed-loop.html https://g35driver.com/forums/engine-drivetrain-forced-induction/475104-05-g35-auto-coupe-wont-start.html Thu, 30 Apr 2026 03:31:54 GMT purchased non starter, new to the platform. codes p1065 and p0462 are shown, corrosion on ground, ecu fuse blown, low light fuse blown, radio fuse blown. power to dash, power drops when turning to... purchased non starter, new to the platform. codes p1065 and p0462 are shown, corrosion on ground, ecu fuse blown, low light fuse blown, radio fuse blown.
power to dash, power drops when turning to start. comes back on when retuned to on position. attempted to jump. starter clicked. charged battery about an hour, jumped starter spins but no crank, theres a slight hum inside the car while on
was told a fuse or starter issue, unsure my next steps ]]> aahveil https://g35driver.com/forums/engine-drivetrain-forced-induction/475104-05-g35-auto-coupe-wont-start.html