P0300 And High Idle w/Uprev

NickBaragona · 12-02-2022, 11:16 AM

Ok thanks, I’ll do the 3 relearning processes and see if that helps. If the high idle persists would it be worth looking at a flash back to stock tune?

Natrix · 01-03-2023, 12:59 AM

Quote:

Originally Posted by NickBaragona

Ok thanks, I’ll do the 3 relearning processes and see if that helps. If the high idle persists would it be worth looking at a flash back to stock tune?

Any updates? I'm having the same issue (stock ECU/tune, though).

The P0300 Saga

EDIT: You're the 4th person with a 40th Anniversary (including myself) who has reported this issue. Did you have your car since new, or do you know if the previous owner had the same problem?

NickBaragona · 01-05-2023, 02:52 PM

Quote:

Originally Posted by Natrix

Any updates? I'm having the same issue (stock ECU/tune, though).

The P0300 Saga

EDIT: You're the 4th person with a 40th Anniversary (including myself) who has reported this issue. Did you have your car since new, or do you know if the previous owner had the same problem?

No update, currently trying to identify two plastic pieces that cracked so can have them replaced. I’ve had mine since around 6,000 miles and it was stock then from the dealership.

Not sure why the pics uploaded sideways lol but hopefully someone can identify those parts

Natrix · 01-06-2023, 01:37 AM

Ok. Just wondering if you had been having the P0300 issue since you purchased the car.

Those plastic parts are listed in the FSM as part of the intake air ducts (see attached snapshot). If yours are cracked, I am guessing there is a vacuum leak, which could explain the misfire.

12-02-2022, 11:16 AM	#1 (permalink)
NickBaragona Enthusiast Member Join Date: Jun 2011 Location: Maryland Posts: 360 Drives: 40th 370Z Rep Power: 15	Ok thanks, I’ll do the 3 relearning processes and see if that helps. If the high idle persists would it be worth looking at a flash back to stock tune? __________________ 20%Sides&Rear 55%Windshield l Rockford Fosgate Amp & P2D2 l Stillen CAI l F.I. CBE & LTH l GTR Start Button l

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