Erratic timing issue sr20 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

RedtopTech · 12-28-2005, 07:04 PM

When i attemp to read the ignition timing on my sr it is very stable at 15 btdc while the motor is cold but when it goes into closed loop,"warmed up" the timing jumps all around at idle. Also are you supposed to set the timing at idle or are you supposed to hold rpm at 3000?

DJPimpFlex · 12-28-2005, 07:08 PM

ok well first, nice one on the tripple posts. Second, when the car gets warmed up it goes into open loop, not closed loop. Did you unplug the TPS? What motor?

projectRDM · 12-28-2005, 07:21 PM

Why don't you try asking us three more times, I don't think we got it yet.

RedtopTech · 12-29-2005, 05:11 PM

i dont understand why you goes refuse to help. Is there a rule about #'s of posts. If there is then i am sorry. How else do you expect me to figure it out unless i make sure that enough people here my problem.

TheSparo · 12-29-2005, 07:35 PM

kinda funny how your username reflects tech... but anyway, i assume you have a redtop? if so all you should do is make sure the car is warm, then unplug the TPS sensor, then time the motor, then plug the tps sensor back in... pretty sure that is the correct way to time it

DJPimpFlex · 12-29-2005, 09:17 PM

basically right, but you have to race the motor up pto 3k 3 times with the tps unpluged

SoSideways · 12-30-2005, 12:25 AM

Why are you working on your motor without the FSM? I'm pretty sure you're gonna ask what an FSM is too, so I'll just type it out for you now as part of the spoon feeding.

It is called FSM because it stands for Factory Service Manual. It will be your bible for when you work on your car. Only if you don't get the results that the FSM says you should have, should you post here asking about it.

Why am I bashing you? Because it's obvious you have not even looked into the FSM, when that whole procedure was outlined for you.

Shit, if you would have searched on FA or here, you would have found the answer, as you're not the only one that has ever tried to time a friggin SR godamned motor.

I need to stop before I kill someone. Sorry but I am posting in a bad mood.

12-28-2005, 07:04 PM	#1
RedtopTech Zilvia Member Join Date: Dec 2005 Location: Virginia Beach, VA Age: 40 Posts: 293 Trader Rating: (0) Feedback Score: 0 reviews	Erratic timing issue sr20 When i attemp to read the ignition timing on my sr it is very stable at 15 btdc while the motor is cold but when it goes into closed loop,"warmed up" the timing jumps all around at idle. Also are you supposed to set the timing at idle or are you supposed to hold rpm at 3000?

12-28-2005, 07:08 PM	#2
DJPimpFlex Post Whore! Join Date: Jan 2004 Location: Rohnert Park, CA Age: 39 Posts: 6,158 Trader Rating: (115) Rides Gallery: DJPimpFlex Feedback Score: 115 reviews	ok well first, nice one on the tripple posts. Second, when the car gets warmed up it goes into open loop, not closed loop. Did you unplug the TPS? What motor? __________________

12-28-2005, 07:21 PM	#3
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Why don't you try asking us three more times, I don't think we got it yet. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

12-29-2005, 07:35 PM	#5
TheSparo Zilvia FREAK! Join Date: Sep 2002 Location: Athens/Chattanooga/ Cookeville/Morristown, TN Age: 39 Posts: 1,141 Trader Rating: (0) Feedback Score: 0 reviews	kinda funny how your username reflects tech... but anyway, i assume you have a redtop? if so all you should do is make sure the car is warm, then unplug the TPS sensor, then time the motor, then plug the tps sensor back in... pretty sure that is the correct way to time it __________________ 89 240 SR powered... ummm i promise its stock

12-29-2005, 09:17 PM	#6
DJPimpFlex Post Whore! Join Date: Jan 2004 Location: Rohnert Park, CA Age: 39 Posts: 6,158 Trader Rating: (115) Rides Gallery: DJPimpFlex Feedback Score: 115 reviews	basically right, but you have to race the motor up pto 3k 3 times with the tps unpluged __________________

12-29-2005, 05:11 PM	#4
RedtopTech Zilvia Member Join Date: Dec 2005 Location: Virginia Beach, VA Age: 40 Posts: 293 Trader Rating: (0) Feedback Score: 0 reviews	i dont understand why you goes refuse to help. Is there a rule about #'s of posts. If there is then i am sorry. How else do you expect me to figure it out unless i make sure that enough people here my problem.

12-30-2005, 12:25 AM	#7
SoSideways Post Whore! Join Date: Apr 2003 Location: 你老母 Posts: 4,371 Trader Rating: (4) Feedback Score: 4 reviews	Why are you working on your motor without the FSM? I'm pretty sure you're gonna ask what an FSM is too, so I'll just type it out for you now as part of the spoon feeding. It is called FSM because it stands for Factory Service Manual. It will be your bible for when you work on your car. Only if you don't get the results that the FSM says you should have, should you post here asking about it. Why am I bashing you? Because it's obvious you have not even looked into the FSM, when that whole procedure was outlined for you. Shit, if you would have searched on FA or here, you would have found the answer, as you're not the only one that has ever tried to time a friggin SR godamned motor. I need to stop before I kill someone. Sorry but I am posting in a bad mood.