Rb25det S2 starting problems - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jisatsu · 09-01-2016, 07:31 AM

So I have an s13 with rb25det s2
All stock except t3 rep turbo and LS2 truck coil packs and j30 maf

Ran fine for months....

One day, while I was driving, it felt like it loss fuel and cut off, but when I gave it gas, rpms still moved up and down. Of course, car is dead and just rolling in neutral. Let it sit for 30 minutes and started working again...

Next day, I drove normally to work fine... on the way home, I decided to push it a little, and it did tthe same thing... can feel motor cut off as If no fuel... but rpms still go up if give gas but doesn't move other than rolling in neutral.... til motor is to a complete stop.... 30 min later, starts up fine

Next day drove normally all day with no problem....

Day after, changed out fuel filter thinking I fixed it.... so to took it for a drive... dies again when I give it extra gas... now it won't start... motor turns over fine, but it won't start....

Bad relay.... that finally gave up???
Please help.

Nissan2nr22 · 09-02-2016, 11:46 AM

Have you checked your gas tank filter? And pump? Maybe its old and worn?

Also if it was getting fuel cut I dont see how the RPMs will keep rising and car not moving, that sounds more like clutch slip.

Check your fuel lines, pump, pump filter sock, FPR.

dbeiler · 09-02-2016, 01:14 PM

You listed every symptom of a dying CAS. Test it and replace if necessary.

09-01-2016, 07:31 AM	#1
jisatsu Join Date: Feb 2010 Location: NC Age: 42 Posts: 29 Trader Rating: (0) Feedback Score: 0 reviews	Rb25det S2 starting problems So I have an s13 with rb25det s2 All stock except t3 rep turbo and LS2 truck coil packs and j30 maf Ran fine for months.... One day, while I was driving, it felt like it loss fuel and cut off, but when I gave it gas, rpms still moved up and down. Of course, car is dead and just rolling in neutral. Let it sit for 30 minutes and started working again... Next day, I drove normally to work fine... on the way home, I decided to push it a little, and it did tthe same thing... can feel motor cut off as If no fuel... but rpms still go up if give gas but doesn't move other than rolling in neutral.... til motor is to a complete stop.... 30 min later, starts up fine Next day drove normally all day with no problem.... Day after, changed out fuel filter thinking I fixed it.... so to took it for a drive... dies again when I give it extra gas... now it won't start... motor turns over fine, but it won't start.... Bad relay.... that finally gave up??? Please help.

09-02-2016, 11:46 AM	#2
Nissan2nr22 Nissanaholic! Join Date: Aug 2008 Location: USA Posts: 1,627 Trader Rating: (30) Rides Gallery: Nissan2nr22 Feedback Score: 30 reviews	Have you checked your gas tank filter? And pump? Maybe its old and worn? Also if it was getting fuel cut I dont see how the RPMs will keep rising and car not moving, that sounds more like clutch slip. Check your fuel lines, pump, pump filter sock, FPR.

09-02-2016, 01:14 PM	#3
dbeiler Zilvia Junkie Join Date: Jun 2012 Location: Lancaster county, PA Age: 33 Posts: 465 Trader Rating: (4) Feedback Score: 4 reviews	You listed every symptom of a dying CAS. Test it and replace if necessary.