S14 SR20 limp mode? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

stayclassy · 04-10-2014, 06:44 PM

Hey guys, I recently just got my s14 on the road, everything seemed great until I hit a puddle. After hitting the puddle my RPMs dropped then CEL came on, started dumping fuel reading 10.0 afr, won't go over 3k RPMs, and I don't have a fuel pump prime. I Checked all my grounds, changed MAF with a known good one, and replaced CAS. Reason for replacing CAS was because when I unplug it, the fuel pump primes? When I eventually get it running it seems to be in limp mode. Doesn't run any different if I disconnect MAF either. Starting to think I have a bad ECU? Right now I have a WC with nismotoronic so I can't really pull any codes. Prior to hitting the puddle, the car wouldn't warm up so it's possible I may have a bad coolant temp sensor? Thanks for any help, please don't tell me to search because I've searched every thread I could find and none of them seem to have the same symptoms I'm having.

stayclassy · 04-13-2014, 10:30 AM

No input from anyone?

Def · 04-13-2014, 11:02 AM

Check all your fuses and relays.

04-10-2014, 06:44 PM	#1
stayclassy Leaky Injector Join Date: Apr 2012 Location: NJ Posts: 141 Trader Rating: (1) Feedback Score: 1 reviews	S14 SR20 limp mode? Hey guys, I recently just got my s14 on the road, everything seemed great until I hit a puddle. After hitting the puddle my RPMs dropped then CEL came on, started dumping fuel reading 10.0 afr, won't go over 3k RPMs, and I don't have a fuel pump prime. I Checked all my grounds, changed MAF with a known good one, and replaced CAS. Reason for replacing CAS was because when I unplug it, the fuel pump primes? When I eventually get it running it seems to be in limp mode. Doesn't run any different if I disconnect MAF either. Starting to think I have a bad ECU? Right now I have a WC with nismotoronic so I can't really pull any codes. Prior to hitting the puddle, the car wouldn't warm up so it's possible I may have a bad coolant temp sensor? Thanks for any help, please don't tell me to search because I've searched every thread I could find and none of them seem to have the same symptoms I'm having.

04-13-2014, 11:02 AM	#3
Def Post Whore! Join Date: Apr 2004 Location: Houston, TX Posts: 2,701 Trader Rating: (16) Feedback Score: 16 reviews	Check all your fuses and relays. __________________ S13 Hatch - Goes around tracks quickly DEFSPORT

04-13-2014, 10:30 AM	#2
stayclassy Leaky Injector Join Date: Apr 2012 Location: NJ Posts: 141 Trader Rating: (1) Feedback Score: 1 reviews	No input from anyone?