Rough Idle on occasion

chuckd05 · 08-06-2011, 10:16 PM

My car since I picked it up from a shop on thursday has been idleing rough and the car has thrown the p1033 or whatever it is... o2 sensor code...

I know my secondary o2s were disconnected and are extended for my LTH but i dont think those failing would cause the rough idle...

My car was recently retuned and should be running proper a/f ... could one of my primary o2's be bad or could this be caused by something else..

the tranny was out and new flywheel was put in, I doubt it was caused by any of that, but the issue did start on the way home. I am going to try to look over things down there tomorrow if the rain stays away, but as of now i am curious if anyone on here has had a rough idle, similar to a cam, and a few hundred rpm's lower than usual... but not all the time. Occasionaly it happens, and if i give it a quick little rev sometimes it stops..

lmk if you have any ideas , thanks !

I have full bolt ons, G3, PE LTH, Stillen exhaust, fidanza flywheel, stillen crank pulley, going to the dealer for something like this isnt really the best idea but I may end up doing it anyway... I have a great relationship with them and they will charge me a discounted labor rate, and atleast should have the best tools to check codes and trouble shoot... I do trust my dealer as I am lucky to have mechanics there I know I can trust..

daisuke149 · 08-06-2011, 10:24 PM

exhaust leak would be my guess. pre o2's.

chuckd05 · 08-11-2011, 01:48 AM

Reset my ecu and the SES came right back...

car is sucking fuel like no other, and idles awkwardly on occasion... I'm thinking my O2 is bad... kind of sucks... weird timing right after my flywheel install...

And the secondary o2s being bad, or wires disconnected wouldn't cause rough idle right? just throw a code? or would they ?

because they needed to be detached when tranny dropped I think... I wanted to stay out of my shops hair but I think I'm going to bring it in tomorrow... they are most likely starting to hate me, lmao

chuckd05 · 08-12-2011, 07:10 PM

Car at Nissan. They checked the sensors with consult and they were good.

So now they need to check the wiring.

With Lth is it the primary or secondary u2 that need extending of the wires?

I'm thinking the shop that did my flywheel accidentally did something.

Def a pita. Light comes right back after reset.

Bank 1 primary is the code p0133

08-06-2011, 10:16 PM	#1 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	Rough Idle on occasion My car since I picked it up from a shop on thursday has been idleing rough and the car has thrown the p1033 or whatever it is... o2 sensor code... I know my secondary o2s were disconnected and are extended for my LTH but i dont think those failing would cause the rough idle... My car was recently retuned and should be running proper a/f ... could one of my primary o2's be bad or could this be caused by something else.. the tranny was out and new flywheel was put in, I doubt it was caused by any of that, but the issue did start on the way home. I am going to try to look over things down there tomorrow if the rain stays away, but as of now i am curious if anyone on here has had a rough idle, similar to a cam, and a few hundred rpm's lower than usual... but not all the time. Occasionaly it happens, and if i give it a quick little rev sometimes it stops.. lmk if you have any ideas , thanks ! I have full bolt ons, G3, PE LTH, Stillen exhaust, fidanza flywheel, stillen crank pulley, going to the dealer for something like this isnt really the best idea but I may end up doing it anyway... I have a great relationship with them and they will charge me a discounted labor rate, and atleast should have the best tools to check codes and trouble shoot... I do trust my dealer as I am lucky to have mechanics there I know I can trust.. __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)

08-11-2011, 01:48 AM	#3 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	Reset my ecu and the SES came right back... car is sucking fuel like no other, and idles awkwardly on occasion... I'm thinking my O2 is bad... kind of sucks... weird timing right after my flywheel install... And the secondary o2s being bad, or wires disconnected wouldn't cause rough idle right? just throw a code? or would they ? because they needed to be detached when tranny dropped I think... I wanted to stay out of my shops hair but I think I'm going to bring it in tomorrow... they are most likely starting to hate me, lmao __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)

08-12-2011, 07:10 PM	#4 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	Car at Nissan. They checked the sensors with consult and they were good. So now they need to check the wiring. With Lth is it the primary or secondary u2 that need extending of the wires? I'm thinking the shop that did my flywheel accidentally did something. Def a pita. Light comes right back after reset. Bank 1 primary is the code p0133 __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)

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08-06-2011, 10:24 PM	#2 (permalink)
daisuke149 My *** is famous! Join Date: Mar 2010 Location: Alpharetta, GA Posts: 4,849 Drives: 2013 Boss 302 PW Rep Power: 31	exhaust leak would be my guess. pre o2's.