SR20 won't start! Halp! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

guitardave06 · 11-11-2016, 10:15 PM

So I just bought an S13 with an SR. It was running fine and made the 140 roundtrip drive to work for almost a week, just fine. Well after getting back into town yesterday, it was running fine when I pulled into the car wash. After I washed it (self serve car wash), I started it and it began to run on only or 2 cylinders. I figured something just got wet so I turned it off and popped the hood to try and figure it out. I did everything I could with the resources that I had, then called one of my buddies because I couldn't figure it out. He messed with it a bit trying to figure out what was wrong by process of elimination. We eventually got it towed to a busy of our as shop. We liked at it tonight and tried/did a few different things. Switching out the ecu, changing spark plugs, checking the CAS, checking spark, regrounding the battery and motor, checked for fuel delivery, checked the ignitor/ignition but still no luck.

We are short of at a loss. Any help would be greatly appreciated guys!

Kingtal0n · 11-12-2016, 12:51 AM

what were the results of the spark test? Do all cylinders spark?

Do a compression test,
check the fuel pressure,
check for spark on all cylinders,

spark/fuel/air should cover it

guitardave06 · 11-12-2016, 04:39 AM

Spark is good, as well as the fuel pressure. Haven't done a compression test yet, but we will probably check that when I get off of work. Would bad compression on one or more cylinders cause it not to start? When I blew rings on my KA-T it started but smoked really bad.

cotbu · 11-12-2016, 09:50 AM

Bad compression in one cylinder will not cause the engine to not start it would have to be all cylinders or zero compression.
Sure there's probably a combo but either way you still wont start.

Spark, Timing, air, fuel and compression.

Sent from my LG-H631 using Tapatalk

Dboyizmlg · 11-12-2016, 10:53 AM

^^^ exactly what Mr. Cotbu has mentioned

11-11-2016, 10:15 PM	#1
guitardave06 Join Date: Jul 2007 Location: Lake Jackson, Tx Age: 35 Posts: 45 Trader Rating: (0) Feedback Score: 0 reviews	SR20 won't start! Halp! So I just bought an S13 with an SR. It was running fine and made the 140 roundtrip drive to work for almost a week, just fine. Well after getting back into town yesterday, it was running fine when I pulled into the car wash. After I washed it (self serve car wash), I started it and it began to run on only or 2 cylinders. I figured something just got wet so I turned it off and popped the hood to try and figure it out. I did everything I could with the resources that I had, then called one of my buddies because I couldn't figure it out. He messed with it a bit trying to figure out what was wrong by process of elimination. We eventually got it towed to a busy of our as shop. We liked at it tonight and tried/did a few different things. Switching out the ecu, changing spark plugs, checking the CAS, checking spark, regrounding the battery and motor, checked for fuel delivery, checked the ignitor/ignition but still no luck. We are short of at a loss. Any help would be greatly appreciated guys!

11-12-2016, 12:51 AM	#2
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 41 Posts: 4,828 Trader Rating: (17) Feedback Score: 17 reviews	what were the results of the spark test? Do all cylinders spark? Do a compression test, check the fuel pressure, check for spark on all cylinders, spark/fuel/air should cover it __________________ 5.3/4l80e/turbo 240sx playthrough: tinyurl.com/4l80er

11-12-2016, 09:50 AM	#4
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 49 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	Bad compression in one cylinder will not cause the engine to not start it would have to be all cylinders or zero compression. Sure there's probably a combo but either way you still wont start. Spark, Timing, air, fuel and compression. Sent from my LG-H631 using Tapatalk __________________ LoverTechnologies "Half Broken Things!"

11-12-2016, 04:39 AM	#3
guitardave06 Join Date: Jul 2007 Location: Lake Jackson, Tx Age: 35 Posts: 45 Trader Rating: (0) Feedback Score: 0 reviews	Spark is good, as well as the fuel pressure. Haven't done a compression test yet, but we will probably check that when I get off of work. Would bad compression on one or more cylinders cause it not to start? When I blew rings on my KA-T it started but smoked really bad.

11-12-2016, 10:53 AM	#5
Dboyizmlg Nissanaholic! Join Date: Aug 2011 Location: SoCal (I.E.), San Berdino, Colton, Redlands Posts: 1,675 Trader Rating: (18) Feedback Score: 18 reviews	^^^ exactly what Mr. Cotbu has mentioned