SR20; why is it hesitating and back firing? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

cmedrift240 · 09-12-2006, 09:04 AM

Last night i was pulling out onto the intersection and i had to accelerate quickly. 1st gear was fine then when i hit 2nd it started to hesitate and backfire. Does anyone know what it could be?

MOUNTAINGARAGE · 09-12-2006, 10:17 AM

change ur plugs lately? are they gapped right?

LB.Motoring · 09-12-2006, 01:32 PM

what range is it in, pm me let me know, ill prob help.

kaotic · 09-12-2006, 02:10 PM

mine did that when the joints on my IC pipes werent tight.. also one time a ground to my boost controller came loose and caused somthing similar

HalveBlue · 09-12-2006, 02:43 PM

Check for air leaks.

Check your spark plugs.

If you're running an atmospheric BOV, you're car will run rich during shifts which can eventually lead to fouled spark plugs.

driftskeetka24e · 09-12-2006, 02:58 PM

mess with your timing lately?

either way check your timing

IAM_SO_sLOw · 09-12-2006, 11:58 PM

i had kinda a similar problem.... it feels like something is restricting the car right?
i dont know what exactly fixed it but i did all these things at once and it was gone...

changed maf sensor
found a leak in intake
changed timing to 15

DrIvEsldEwAyS · 09-13-2006, 09:42 AM

i also had that problem, when i would first get on it, it would sputter and then backfire then it would go, i changed my plugs and that helped, also the person that put the old plugs in when they did the swap put the wrong heat range.

09-12-2006, 09:04 AM	#1
cmedrift240 Join Date: Sep 2006 Location: Stafford, VA Age: 40 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	SR20; why is it hesitating and back firing? Last night i was pulling out onto the intersection and i had to accelerate quickly. 1st gear was fine then when i hit 2nd it started to hesitate and backfire. Does anyone know what it could be?

09-12-2006, 01:32 PM	#3
LB.Motoring Post Whore! Join Date: Jul 2006 Location: SòCal♥ Age: 38 Posts: 5,840 Trader Rating: (1) Rides Gallery: LB.Motoring Feedback Score: 1 reviews	what range is it in, pm me let me know, ill prob help. __________________ Robby Leuer

09-13-2006, 09:42 AM	#8
DrIvEsldEwAyS Zilvia Junkie Join Date: Apr 2005 Location: Columbia,SC Age: 36 Posts: 351 Trader Rating: (0) Feedback Score: 0 reviews	i also had that problem, when i would first get on it, it would sputter and then backfire then it would go, i changed my plugs and that helped, also the person that put the old plugs in when they did the swap put the wrong heat range. __________________ -1990 240sx hatch sr20det- gt35r, blah blah blah

09-12-2006, 10:17 AM	#2
MOUNTAINGARAGE Zilvia Member Join Date: Jul 2006 Location: Mountainside, Va Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	change ur plugs lately? are they gapped right?

09-12-2006, 02:10 PM	#4
kaotic Zilvia Junkie Join Date: Jan 2005 Location: Las Vegas, NV Posts: 334 Trader Rating: (1) Feedback Score: 1 reviews	mine did that when the joints on my IC pipes werent tight.. also one time a ground to my boost controller came loose and caused somthing similar

09-12-2006, 02:43 PM	#5
HalveBlue Zilvia FREAK! Join Date: Mar 2004 Location: I'm somewhere where I don't know where I am! Posts: 1,549 Trader Rating: (0) Feedback Score: 0 reviews	Check for air leaks. Check your spark plugs. If you're running an atmospheric BOV, you're car will run rich during shifts which can eventually lead to fouled spark plugs.

09-12-2006, 02:58 PM	#6
driftskeetka24e Leaky Injector Join Date: Mar 2006 Location: Washington Age: 35 Posts: 76 Trader Rating: (0) Feedback Score: 0 reviews	mess with your timing lately? either way check your timing

09-12-2006, 11:58 PM	#7
IAM_SO_sLOw Zilvia FREAK! Join Date: Apr 2004 Location: west covina Posts: 1,164 Trader Rating: (5) Feedback Score: 5 reviews	i had kinda a similar problem.... it feels like something is restricting the car right? i dont know what exactly fixed it but i did all these things at once and it was gone... changed maf sensor found a leak in intake changed timing to 15