Uprev question.

EVOHUNTER · 09-20-2013, 03:54 PM

Ok so my question is : If i disable my misfire code through up rev. Will the symptoms still come up.
Example - Car runs great for 2 weeks, misfire code comes on, idle jumps and runs ar 11.2:1. I clear the code, cars back at 850 idle 14.8:1 and runs great. I found an exhaust leak, fixed it and the code cleared it self. which was nice.
But me and employee at my shop are debating over this,
He says the light wont come up, but the car will still act the same as if the light was on the dash board.
I think, if i disable this code, the light or the symptoms wont come up. i could be wrong, but want some imput. thanks.

DEpointfive0 · 09-20-2013, 03:58 PM

I HOPE the issue still pops up. Your car is misfiring either way.
You should try to actually fixing it, not BS the system

EVOHUNTER · 09-20-2013, 04:01 PM

The problem has been fixed. As said in my OR post.
Me and an employee are debating over if you remove the code through uprev. what will happen.

theDreamer · 09-20-2013, 04:03 PM

If you clear a code the car should revert back to its previous state prior to the code.
I was getting a bank too lean code, until my re-tune. Would just clear it and the car was fine (re-tune fixed my issue).

6MT · 09-20-2013, 04:03 PM

You won't know when there is actually a misfire.

Out of sight, out of mind I guess...

EVOHUNTER · 09-20-2013, 04:06 PM

I mean "disable the code" through uprev.
Not clear it with a scanner..
I had a leak from header to cat, fixed it and the code cleared it self.

ANMVQ · 09-20-2013, 05:07 PM

I would be careful about disabling misfire codes , Kinda something you want to know happens.
BTW how the Air to Air thing we where talking about coming

Baer383 · 09-20-2013, 06:59 PM

To answer the OP's question,you just shut off trouble code P0300 which is random misfire code,each cylinder has it's own code for a misfire and yes they do show up and it makes it better for diagnose the problem.

09-20-2013, 03:54 PM	#1 (permalink)
EVOHUNTER Track Member Join Date: Jul 2011 Location: Edmonton, Canada Posts: 681 Drives: BOOSTED3-7-0 Rep Power: 15	Uprev question. Ok so my question is : If i disable my misfire code through up rev. Will the symptoms still come up. Example - Car runs great for 2 weeks, misfire code comes on, idle jumps and runs ar 11.2:1. I clear the code, cars back at 850 idle 14.8:1 and runs great. I found an exhaust leak, fixed it and the code cleared it self. which was nice. But me and employee at my shop are debating over this, He says the light wont come up, but the car will still act the same as if the light was on the dash board. I think, if i disable this code, the light or the symptoms wont come up. i could be wrong, but want some imput. thanks. __________________

09-20-2013, 03:58 PM	#2 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	I HOPE the issue still pops up. Your car is misfiring either way. You should try to actually fixing it, not BS the system __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

09-20-2013, 04:01 PM	#3 (permalink)
EVOHUNTER Track Member Join Date: Jul 2011 Location: Edmonton, Canada Posts: 681 Drives: BOOSTED3-7-0 Rep Power: 15	The problem has been fixed. As said in my OR post. Me and an employee are debating over if you remove the code through uprev. what will happen. __________________

09-20-2013, 04:03 PM	#4 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	If you clear a code the car should revert back to its previous state prior to the code. I was getting a bank too lean code, until my re-tune. Would just clear it and the car was fine (re-tune fixed my issue). __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

09-20-2013, 04:03 PM	#5 (permalink)
6MT A True Z Fanatic Join Date: May 2009 Location: ITU Zone 2 Posts: 22,459 Drives: Reliant Robin Rep Power: 1790	You won't know when there is actually a misfire. Out of sight, out of mind I guess... __________________ Andrew 2009 370Z Sport/Touring 6MT sold 2013 Honda Civic Si coupe D/D

09-20-2013, 04:06 PM	#6 (permalink)
EVOHUNTER Track Member Join Date: Jul 2011 Location: Edmonton, Canada Posts: 681 Drives: BOOSTED3-7-0 Rep Power: 15	I mean "disable the code" through uprev. Not clear it with a scanner.. I had a leak from header to cat, fixed it and the code cleared it self. __________________

09-20-2013, 05:07 PM	#7 (permalink)
ANMVQ A True Z Fanatic Join Date: Mar 2011 Location: Framingham MA Posts: 2,732 Drives: 2014 Q50 AWD Rep Power: 19	I would be careful about disabling misfire codes , Kinda something you want to know happens. BTW how the Air to Air thing we where talking about coming __________________ 14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

09-20-2013, 06:59 PM	#8 (permalink)
Baer383 A True Z Fanatic Join Date: Aug 2010 Location: Lawrenceville,Ga Posts: 4,293 Drives: My foot up your azz Rep Power: 30	To answer the OP's question,you just shut off trouble code P0300 which is random misfire code,each cylinder has it's own code for a misfire and yes they do show up and it makes it better for diagnose the problem. __________________ 2013 ZL1 754 rwhp 747 rwtq Last edited by Baer383; 09-20-2013 at 08:15 PM.

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