idle funny - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Mashie210 · 12-07-2009, 04:38 AM

ok guys any help will be greatly appericate it. so here it goes. its a 92 couple with black top sr20 running on power fc. the problems i am having with my funny idle is when i start up the car in the morning it would jump from 1500-2000 rpm while is cold but when is fully warm then it would stay at around 1500 rpm..the car drive great with no problems while running but when i let go of the gas and clutch the idle would jump from around 1300-1800 rpm non stop until i slow down to about 10-20 mph then it would hold at 2000 rpm. after comming to a complete stop at a light the idle would start jumping again from 1300-1800 rpm again until i start going. while my foot is on the gas paddle the car run with no problems at all. thanks for the time guys and any help is appericate it. thanks again.

slothonaleash · 12-07-2009, 08:21 AM

Check for vacuum leaks

Mashie210 · 12-07-2009, 10:17 PM

i had..i am leaning toward more with either the iavc or tps

240sxxs · 12-07-2009, 10:36 PM

power fc what version L or D ... L is for maf and if u running on D then vaccumm is not a problem or related too because ur running of MAP.. well i have the same problem as u right now....drive fine, idle at dead stop fine , accelerate fine , parked idle fine, but when a car about to coem to a complete dead stop or s red light . the idle is starting to boincing between 900-1300 and ZILVIAN said is my power steering pressure sensor that messing with the idle.. but i haven have to time fix it

Mashie210 · 12-13-2009, 09:30 PM

i dont think the power steering pressure sensor casue it that. cuz alot of Sr motor ppl doesnt hook it up from what i know. and as well as i am running D jetro. in this few days i am gonna check out iacv or tps to see if thats causing the problem. if not then it might be my power fc setting since i havent properly tune it. and i might need to get it done professionaly.

12-07-2009, 04:38 AM	#1
Mashie210 Leaky Injector Join Date: Sep 2009 Location: Tx Posts: 50 Trader Rating: (0) Feedback Score: 0 reviews	idle funny ok guys any help will be greatly appericate it. so here it goes. its a 92 couple with black top sr20 running on power fc. the problems i am having with my funny idle is when i start up the car in the morning it would jump from 1500-2000 rpm while is cold but when is fully warm then it would stay at around 1500 rpm..the car drive great with no problems while running but when i let go of the gas and clutch the idle would jump from around 1300-1800 rpm non stop until i slow down to about 10-20 mph then it would hold at 2000 rpm. after comming to a complete stop at a light the idle would start jumping again from 1300-1800 rpm again until i start going. while my foot is on the gas paddle the car run with no problems at all. thanks for the time guys and any help is appericate it. thanks again.

12-07-2009, 10:36 PM	#4
240sxxs Zilvia Member Join Date: Aug 2008 Location: o were Posts: 277 Trader Rating: (0) Feedback Score: 0 reviews	power fc what version L or D ... L is for maf and if u running on D then vaccumm is not a problem or related too because ur running of MAP.. well i have the same problem as u right now....drive fine, idle at dead stop fine , accelerate fine , parked idle fine, but when a car about to coem to a complete dead stop or s red light . the idle is starting to boincing between 900-1300 and ZILVIAN said is my power steering pressure sensor that messing with the idle.. but i haven have to time fix it __________________ The pretty one Arn't free and the free one Arn't pretty

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12-07-2009, 08:21 AM	#2
slothonaleash Zilvia Addict Join Date: Jan 2007 Location: Columbus, Ohio Age: 29 Posts: 745 Trader Rating: (4) Feedback Score: 4 reviews	Check for vacuum leaks

12-07-2009, 10:17 PM	#3
Mashie210 Leaky Injector Join Date: Sep 2009 Location: Tx Posts: 50 Trader Rating: (0) Feedback Score: 0 reviews	i had..i am leaning toward more with either the iavc or tps

12-13-2009, 09:30 PM	#5
Mashie210 Leaky Injector Join Date: Sep 2009 Location: Tx Posts: 50 Trader Rating: (0) Feedback Score: 0 reviews	i dont think the power steering pressure sensor casue it that. cuz alot of Sr motor ppl doesnt hook it up from what i know. and as well as i am running D jetro. in this few days i am gonna check out iacv or tps to see if thats causing the problem. if not then it might be my power fc setting since i havent properly tune it. and i might need to get it done professionaly.