<SR not firing on #2 :-( - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

trybal · 07-12-2006, 06:20 PM

s13 w/ redtop sr20det= stock boost

Okay..... problem starts here

I was driving my car one day, and the idle got shaky and smoke started billowing outta the exhaust. was pretty bad, like a smoke screen. Drove it home a mile and thought i had fried a ring. I wasn't driving hard at all when it did this, maybe shifting at 3k tops. Well the crank case seems to be pressurized and its kicking oil into the exhaust mani and its pooling out onto the turbo. The turbo is fine. So I thought it was a ring untill i talked to someone else.. They said it might be spark related.

Comp tested it, and got 145, 125, 145, 145.

Found out that one the car gets warm, like if its hot outside it cuts spark to cyl #2.. I think the 125 comp was cause the gas washed the oil off the walls since theres no spark.

Well I changed plugs,
tried a different coil pack,
Tried a new ignitor chip,
and tried a new ecu..

No luck...

If i start the car up at night it will run fine for 5-10 minutes if its cold outside, then the idle starts to get choppy and smoke starts comming outta the tail pipe, smelling like a 2 stroke.

Oil and Coolant both seem fine and clear.

Any ideas?

aznpoopy · 07-12-2006, 06:34 PM

hmm... #2 injector stuck or injector o-ring bad maybe

open the oil fill cap. do you smell alot of gas? does the car flood? is your oil diluted with gasoline?

trybal · 07-12-2006, 06:40 PM

well no fuel is leaving the rail or mani. So i don't think its an o-ring. Its possibly the injector might stop firing, but when i comp tested it and released the pressued it sprayed fuel out. So i know its getting gas. The car floods when it is only running on 3 cyl. I don't think the oil has much gas in it, if any

SiI40sx · 07-12-2006, 07:30 PM

disconnect the injector plug while the car is idling, if nothing changes thats becuz u have a bad injector

trybal · 07-12-2006, 07:33 PM

well when i disconnect the coil pack plug nothing happens. So if i did the injector i would have the same results

Boney · 07-12-2006, 07:45 PM

hmm.. might be a CAS. Had a similar issue but cylinder #1 was firing sometimes.. changed the cas out and it was fine.

trybal · 07-12-2006, 07:53 PM

that could be a possibility, the cas wires look like they are falling out of it

07-12-2006, 07:45 PM	#6
Boney Zilvia Member Join Date: Nov 2005 Location: Boston, MA Posts: 197 Trader Rating: (1) Rides Gallery: Boney Feedback Score: 1 reviews	hmm.. might be a CAS. Had a similar issue but cylinder #1 was firing sometimes.. changed the cas out and it was fine. __________________ 91 Coupe

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07-12-2006, 06:20 PM	#1
trybal Zilvia Junkie Join Date: Nov 2005 Location: Seattle wa Posts: 299 Trader Rating: (0) Feedback Score: 0 reviews	<SR not firing on #2 :-( s13 w/ redtop sr20det= stock boost Okay..... problem starts here I was driving my car one day, and the idle got shaky and smoke started billowing outta the exhaust. was pretty bad, like a smoke screen. Drove it home a mile and thought i had fried a ring. I wasn't driving hard at all when it did this, maybe shifting at 3k tops. Well the crank case seems to be pressurized and its kicking oil into the exhaust mani and its pooling out onto the turbo. The turbo is fine. So I thought it was a ring untill i talked to someone else.. They said it might be spark related. Comp tested it, and got 145, 125, 145, 145. Found out that one the car gets warm, like if its hot outside it cuts spark to cyl #2.. I think the 125 comp was cause the gas washed the oil off the walls since theres no spark. Well I changed plugs, tried a different coil pack, Tried a new ignitor chip, and tried a new ecu.. No luck... If i start the car up at night it will run fine for 5-10 minutes if its cold outside, then the idle starts to get choppy and smoke starts comming outta the tail pipe, smelling like a 2 stroke. Oil and Coolant both seem fine and clear. Any ideas?

07-12-2006, 06:34 PM	#2
aznpoopy Post Whore! Join Date: Mar 2003 Location: New Jersey Age: 40 Posts: 5,013 Trader Rating: (1) Feedback Score: 1 reviews	hmm... #2 injector stuck or injector o-ring bad maybe open the oil fill cap. do you smell alot of gas? does the car flood? is your oil diluted with gasoline?

07-12-2006, 06:40 PM	#3
trybal Zilvia Junkie Join Date: Nov 2005 Location: Seattle wa Posts: 299 Trader Rating: (0) Feedback Score: 0 reviews	well no fuel is leaving the rail or mani. So i don't think its an o-ring. Its possibly the injector might stop firing, but when i comp tested it and released the pressued it sprayed fuel out. So i know its getting gas. The car floods when it is only running on 3 cyl. I don't think the oil has much gas in it, if any

07-12-2006, 07:30 PM	#4
SiI40sx BANNED Join Date: Mar 2006 Location: Bass bumpin, mind trippin Age: 35 Posts: 3,394 Trader Rating: (0) Rides Gallery: SiI40sx Feedback Score: 0 reviews	disconnect the injector plug while the car is idling, if nothing changes thats becuz u have a bad injector

07-12-2006, 07:33 PM	#5
trybal Zilvia Junkie Join Date: Nov 2005 Location: Seattle wa Posts: 299 Trader Rating: (0) Feedback Score: 0 reviews	well when i disconnect the coil pack plug nothing happens. So if i did the injector i would have the same results

07-12-2006, 07:53 PM	#7
trybal Zilvia Junkie Join Date: Nov 2005 Location: Seattle wa Posts: 299 Trader Rating: (0) Feedback Score: 0 reviews	that could be a possibility, the cas wires look like they are falling out of it