Sr20 no start, possibly bad gas? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

1988montecarloss · 06-24-2017, 12:51 PM

Sr20 s13 with t28, 550 sti injectors and z32 MAF with rs enthalpy ecu tuned for the setup. Has spark, has fuel, good battery, turns over great but acts like it's not even trying to fire. Have checked over everything I can think of and the only thing that comes to mind is the gas has gone bad from sitting (5-6months) but even if that was the case I'd think it would still try to start and just run poorly

Other than that I'm out of ideas, any other things it could be? Very busy these days and have limited time to mess with the car so trying to get a list of everything I can check before I go mess with it again.

Gonna try to start it on starting fluid and drain the tank and fill with fresh 93 on Monday but won't have time to until then

1988montecarloss · 06-25-2017, 12:16 PM

Tried it on starting fluid, still nothing. Car popped a couple times but still isn't even trying to start

wurley · 06-25-2017, 12:34 PM

gas gone bad after 6 months

I just started a car last week that had been sitting for 3-4 years, ran fine.
Did it run before it sat? if not you might want to check timing and or compression

1988montecarloss · 06-25-2017, 12:39 PM

Quote:

Originally Posted by wurley

gas gone bad after 6 months

I just started a car last week that had been sitting for 3-4 years, ran fine.
Did it run before it sat? if not you might want to check timing and or compression

Daily drove it until last December when I parked it because of winter, planned to big turbo It and didn't so only things that have changed is that I took the injectors/computer out and then put it back together

Timing has never been messed with and compression is 140-145 cold

wurley · 06-25-2017, 04:49 PM

maybe try unplugging the maf or coolant temp sensor. My only guess is either the mixture is way to far off or the spark is too weak

jedi03 · 06-26-2017, 08:50 AM

check for teeth marks on wires...mice love to get warm in the wires for some reason...

1988montecarloss · 06-26-2017, 05:24 PM

Quote:

Originally Posted by wurley

maybe try unplugging the maf or coolant temp sensor. My only guess is either the mixture is way to far off or the spark is too weak

Have tried both, it's acting like it's not sparking at all but if I pull a plug out and put it in a coil I can watch it spark

1988montecarloss · 06-26-2017, 05:26 PM

Quote:

Originally Posted by jedi03

check for teeth marks on wires...mice love to get warm in the wires for some reason...

Haven't seen anything but i suppose it's worth a look

wurley · 06-26-2017, 08:56 PM

are the cylinders flooded with fuel?

1988montecarloss · 06-27-2017, 05:49 PM

Quote:

Originally Posted by wurley

are the cylinders flooded with fuel?

Nope, the plugs will get wet and if I pull plugs and Crank it I can see fuel come out of the cylinder but it doesn't build up to the point where it fills the cylinder any

battery1882 · 06-28-2017, 12:09 PM

I would try to reset the CAS. Has it ran before?

1988montecarloss · 06-29-2017, 04:32 PM

Quote:

Originally Posted by battery1882

I would try to reset the CAS. Has it ran before?

Yes have daily driven this car 25k miles with basically the same setup

1988montecarloss · 07-03-2017, 02:36 PM

Still not starting, have restabbed cas as per frsport writeup and have gone over every wire and connection and everything seems fine and still nothing, has to be the computer, sending it to Martin on Friday

RB25GUY · 07-06-2017, 09:32 AM

ive had this issue with my RB same symptoms ended up being a mix between a bad MAF and a dying Fuel pump!!

06-24-2017, 12:51 PM	#1
1988montecarloss Nissanaholic! Join Date: Jun 2012 Location: old el paso Age: 28 Posts: 1,979 Trader Rating: (24) Feedback Score: 24 reviews	Sr20 no start, possibly bad gas? Sr20 s13 with t28, 550 sti injectors and z32 MAF with rs enthalpy ecu tuned for the setup. Has spark, has fuel, good battery, turns over great but acts like it's not even trying to fire. Have checked over everything I can think of and the only thing that comes to mind is the gas has gone bad from sitting (5-6months) but even if that was the case I'd think it would still try to start and just run poorly Other than that I'm out of ideas, any other things it could be? Very busy these days and have limited time to mess with the car so trying to get a list of everything I can check before I go mess with it again. Gonna try to start it on starting fluid and drain the tank and fill with fresh 93 on Monday but won't have time to until then __________________ IG: @Haley72692

06-25-2017, 12:16 PM	#2
1988montecarloss Nissanaholic! Join Date: Jun 2012 Location: old el paso Age: 28 Posts: 1,979 Trader Rating: (24) Feedback Score: 24 reviews	Tried it on starting fluid, still nothing. Car popped a couple times but still isn't even trying to start __________________ IG: @Haley72692

06-25-2017, 12:34 PM	#3
wurley Zilvia Junkie Join Date: Dec 2012 Location: Wa Posts: 355 Trader Rating: (16) Feedback Score: 16 reviews	gas gone bad after 6 months I just started a car last week that had been sitting for 3-4 years, ran fine. Did it run before it sat? if not you might want to check timing and or compression __________________ @hiddenkouki WTB: FRONT S14 SILVIA Q'S SEATS purple zebra)

06-25-2017, 04:49 PM	#5
wurley Zilvia Junkie Join Date: Dec 2012 Location: Wa Posts: 355 Trader Rating: (16) Feedback Score: 16 reviews	maybe try unplugging the maf or coolant temp sensor. My only guess is either the mixture is way to far off or the spark is too weak __________________ @hiddenkouki WTB: FRONT S14 SILVIA Q'S SEATS purple zebra)

06-26-2017, 08:56 PM	#9
wurley Zilvia Junkie Join Date: Dec 2012 Location: Wa Posts: 355 Trader Rating: (16) Feedback Score: 16 reviews	are the cylinders flooded with fuel? __________________ @hiddenkouki WTB: FRONT S14 SILVIA Q'S SEATS purple zebra)

06-26-2017, 08:50 AM	#6
jedi03 Nissanaholic! Join Date: Jul 2008 Location: albuquerque Posts: 1,784 Trader Rating: (8) Feedback Score: 8 reviews	check for teeth marks on wires...mice love to get warm in the wires for some reason...

06-28-2017, 12:09 PM	#11
battery1882 Zilvia Addict Join Date: Jan 2005 Location: Fullerton, CA Age: 39 Posts: 694 Trader Rating: (13) Feedback Score: 13 reviews	I would try to reset the CAS. Has it ran before? __________________ instagram : battery1882 www.sterculture.com

07-03-2017, 02:36 PM	#13
1988montecarloss Nissanaholic! Join Date: Jun 2012 Location: old el paso Age: 28 Posts: 1,979 Trader Rating: (24) Feedback Score: 24 reviews	Still not starting, have restabbed cas as per frsport writeup and have gone over every wire and connection and everything seems fine and still nothing, has to be the computer, sending it to Martin on Friday __________________ IG: @Haley72692

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