Nissan 370Z Forum - View Single Post - Is this engine coolant on my spark plugs? P0300

Cory Gillmore · 11-02-2021, 04:24 PM

Another weird thing it’s doing. On a cold start, it revs really damn high for a good 3-4 seconds. I mean like almost 2000rpms. Then it’ll settle down to around 1200rpm. Then eventually it’ll settle down to around 750-800rpm so long as the code isn’t active. If I don’t clear the code it idles around 1200ish, per normal P0300 idle.

Also, between upshifs, I feel like the revs are hanging up longer than normal. Like it takes the RPMs longer to drop than it normally does

11-02-2021, 04:24 PM	#24 (permalink)
Cory Gillmore Base Member Join Date: Nov 2017 Location: Memphis TN Posts: 113 Drives: 09 Sport/Touring MT Rep Power: 3363	Another weird thing it’s doing. On a cold start, it revs really damn high for a good 3-4 seconds. I mean like almost 2000rpms. Then it’ll settle down to around 1200rpm. Then eventually it’ll settle down to around 750-800rpm so long as the code isn’t active. If I don’t clear the code it idles around 1200ish, per normal P0300 idle. Also, between upshifs, I feel like the revs are hanging up longer than normal. Like it takes the RPMs longer to drop than it normally does __________________ 09 S/T 6MT: AAM S-Line catback exhaust Ti tips, Z1 CF CAI, Z1 ported intake plenum, Z1 high energy coil packs, tuned with ECU-Tek @ Z1: 332whp 261ftlbs Last edited by Cory Gillmore; 11-02-2021 at 04:41 PM.