Z32 unstable RPM flux - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

zingo · 09-12-2010, 11:29 PM

Ok so once its all warmed up and i drive for about 5 minutes, I release the gas and let it slowly crawl down to idle RPM, then once it reaches the 1000rpm mark the car drops to 600 and then rises to 900, and just keeps fluxing like that 600/900/600/900/600/900 and then it stops when I come to a complete stop, Ive cleaned the MAF, AAC, IACV and fixing all vacuum leaks, so far doing all that make no difference, although it does make the problem less aggressive, but I still can't drive it normally, cuz the whole car will shake back and forth when the flux happens, what should I do?!?!?

articdragon192 · 09-12-2010, 11:40 PM

Check your TPS

zingo · 09-12-2010, 11:42 PM

you really think that would do the trick? I'll give it a shot first thing in the morning and I'll update you on my progress thanks

zingo · 09-12-2010, 11:48 PM

hey I looked at my TPS the wire that connects to the TPS is missing that clip thing, is that bad? and how would I fix my problem with the TPS? do i move it back and forth or what?

Z32TT-R · 09-13-2010, 12:31 AM

Volt meter.., at idle it should be between .40-.50v but .42-.44v are usually the best reults for setting.

zingo · 09-13-2010, 05:01 PM

checked the tps its at .43v thats good? and its still doing the flux thing

zingo · 09-14-2010, 05:42 PM

ok so I narrowed it down, its not any electrical equipment failures, so that means somethings clogged, alraedy cleaned AAC and IACV what else is there that could be clogged and causing my problem?

articdragon192 · 09-15-2010, 01:38 AM

Fuel filter?

zingo · 09-15-2010, 04:37 PM

ok heres a more precise description, once the cars all warmed up and all that, and I've been driving for 5 minutes or so, I let off the gas to let the car return to idle, on the RPM, once the needle hits idle (about 900rpm) the needle will bounce, and the car will go back and forth back and forth, could it really be the fuel filter?

articdragon192 · 09-16-2010, 01:09 AM

Or a vacuum leak you're missing

cotbu · 09-16-2010, 07:32 AM

Sounds like coolant temp sensor. pull codes.

09-12-2010, 11:29 PM	#1
zingo Zilvia Member Join Date: Dec 2009 Location: california Posts: 232 Trader Rating: (4) Feedback Score: 4 reviews	Z32 unstable RPM flux Ok so once its all warmed up and i drive for about 5 minutes, I release the gas and let it slowly crawl down to idle RPM, then once it reaches the 1000rpm mark the car drops to 600 and then rises to 900, and just keeps fluxing like that 600/900/600/900/600/900 and then it stops when I come to a complete stop, Ive cleaned the MAF, AAC, IACV and fixing all vacuum leaks, so far doing all that make no difference, although it does make the problem less aggressive, but I still can't drive it normally, cuz the whole car will shake back and forth when the flux happens, what should I do?!?!?

09-12-2010, 11:40 PM	#2
articdragon192 Post Whore! Join Date: Jan 2005 Location: West covina Age: 39 Posts: 6,792 Trader Rating: (9) Feedback Score: 9 reviews	Check your TPS __________________ Need help? Click here Still stumped? Try this Can't find what you're looking for? Here you go.

09-13-2010, 12:31 AM	#5
Z32TT-R Zilvia Member Join Date: Jul 2009 Location: Sacramento, CA Age: 40 Posts: 288 Trader Rating: (2) Feedback Score: 2 reviews	Volt meter.., at idle it should be between .40-.50v but .42-.44v are usually the best reults for setting. __________________

09-15-2010, 01:38 AM	#8
articdragon192 Post Whore! Join Date: Jan 2005 Location: West covina Age: 39 Posts: 6,792 Trader Rating: (9) Feedback Score: 9 reviews	Fuel filter? __________________ Need help? Click here Still stumped? Try this Can't find what you're looking for? Here you go.

09-16-2010, 01:09 AM	#10
articdragon192 Post Whore! Join Date: Jan 2005 Location: West covina Age: 39 Posts: 6,792 Trader Rating: (9) Feedback Score: 9 reviews	Or a vacuum leak you're missing __________________ Need help? Click here Still stumped? Try this Can't find what you're looking for? Here you go.

09-12-2010, 11:42 PM	#3
zingo Zilvia Member Join Date: Dec 2009 Location: california Posts: 232 Trader Rating: (4) Feedback Score: 4 reviews	you really think that would do the trick? I'll give it a shot first thing in the morning and I'll update you on my progress thanks

09-12-2010, 11:48 PM	#4
zingo Zilvia Member Join Date: Dec 2009 Location: california Posts: 232 Trader Rating: (4) Feedback Score: 4 reviews	hey I looked at my TPS the wire that connects to the TPS is missing that clip thing, is that bad? and how would I fix my problem with the TPS? do i move it back and forth or what?

09-13-2010, 05:01 PM	#6
zingo Zilvia Member Join Date: Dec 2009 Location: california Posts: 232 Trader Rating: (4) Feedback Score: 4 reviews	checked the tps its at .43v thats good? and its still doing the flux thing

09-14-2010, 05:42 PM	#7
zingo Zilvia Member Join Date: Dec 2009 Location: california Posts: 232 Trader Rating: (4) Feedback Score: 4 reviews	ok so I narrowed it down, its not any electrical equipment failures, so that means somethings clogged, alraedy cleaned AAC and IACV what else is there that could be clogged and causing my problem?

09-15-2010, 04:37 PM	#9
zingo Zilvia Member Join Date: Dec 2009 Location: california Posts: 232 Trader Rating: (4) Feedback Score: 4 reviews	ok heres a more precise description, once the cars all warmed up and all that, and I've been driving for 5 minutes or so, I let off the gas to let the car return to idle, on the RPM, once the needle hits idle (about 900rpm) the needle will bounce, and the car will go back and forth back and forth, could it really be the fuel filter?

09-16-2010, 07:32 AM	#11
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	Sounds like coolant temp sensor. pull codes. __________________ LoverTechnologies "Half Broken Things!"