High Idle Issue...

DIGItonium · 02-22-2016, 04:38 PM

Ditto... still on stock canned tune from GTM. It's a daily driver, so nothing too extreme. I'd definitely make the switch to ECUtek as well, but I've got other priorities.

Part of that new tune needed acceleration is a bit sluggish or slightly hesitant under 3k when I fully depress the accelerator pedal, but that's been an ongoing thing. I think it's too rich.

VSS370z · 02-22-2016, 05:30 PM

When i scan it for codes it hit me a p0300 which is random misfires. Even air/fuel ratio been out of whack can cause the stupid p0300 code. I have check for vaccum leaks, oil leaks and clean the maf sensors and no luck. As part of the code it did mention ignition system,fuel system or a/f ratios been mess up. Thats why now i am going to do some changes to the ignition system and fuel system and then go for the tune and see what happens.

hjo1078 · 02-22-2016, 05:52 PM

Quote:

Originally Posted by VSS370z

When i scan it for codes it hit me a p0300 which is random misfires. Even air/fuel ratio been out of whack can cause the stupid p0300 code. I have check for vaccum leaks, oil leaks and clean the maf sensors and no luck. As part of the code it did mention ignition system,fuel system or a/f ratios been mess up. Thats why now i am going to do some changes to the ignition system and fuel system and then go for the tune and see what happens.

what injectors are you running? I had the same issue for a while, and it progressively got worst and worst. Before i would clear the code, and it wouldnt come back for a while, then it started happening every time i started the car even after clearing the code. It was doing it when i had uprev and when i had ecutek. Problem went away when i switched injectors to id1300

VSS370z · 02-22-2016, 07:11 PM

Quote:

Originally Posted by hjo1078

what injectors are you running? I had the same issue for a while, and it progressively got worst and worst. Before i would clear the code, and it wouldnt come back for a while, then it started happening every time i started the car even after clearing the code. It was doing it when i had uprev and when i had ecutek. Problem went away when i switched injectors to id1300

Injectors have cross my mind as well for this idle surging thats why i am gonna try different ones. I am running Bosch 650cc injectors but going with ID 1000cc. Thanks for the info.

02-22-2016, 04:38 PM	#1 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 44	Ditto... still on stock canned tune from GTM. It's a daily driver, so nothing too extreme. I'd definitely make the switch to ECUtek as well, but I've got other priorities. Part of that new tune needed acceleration is a bit sluggish or slightly hesitant under 3k when I fully depress the accelerator pedal, but that's been an ongoing thing. I think it's too rich. __________________ Last edited by DIGItonium; 02-22-2016 at 04:42 PM.

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02-22-2016, 05:30 PM	#2 (permalink)
VSS370z Enthusiast Member Join Date: Apr 2012 Location: Puerto Rico Posts: 380 Drives: 09 Nissan 370z CY M6 Rep Power: 15	When i scan it for codes it hit me a p0300 which is random misfires. Even air/fuel ratio been out of whack can cause the stupid p0300 code. I have check for vaccum leaks, oil leaks and clean the maf sensors and no luck. As part of the code it did mention ignition system,fuel system or a/f ratios been mess up. Thats why now i am going to do some changes to the ignition system and fuel system and then go for the tune and see what happens.