S14 SR20DET intermittently cutting out - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

khilgers · 04-18-2011, 08:53 PM

I've been having an issue since late last year with my car randomly cutting out, almost like you unplugged the MAF and I am not able to rev, the car will barely idle, will sputter, then 1 second later it's fine. There is no consistency to the times that this will happen. I can drive it for an entire day with no issues, then drive it the next day and it will happen 5 minutes after I leave the house.

I thought at first that this was something MAF related. At the last Drift Day of the year my MAF wiring made contact with my manifold and melted about a 6" section of it. I pulled it all apart and luckily when I had the car wired we had about 4' extra of wiring bundle up by the ECU. So, I cut out the last section of wiring, soldered my Z32 MAF plug back on and I thought that would fix the problem. It did for about a day, then the problem came back.

Any idea on what would be causing this?

So far I have tried:

-cutting out melted section of MAF wiring, and soldering on Z32 plug
-trying a different Z32 maf
-trying a different Z32 plug
-moving the ground to a better, more reliable spot
-cleaning both MAF's

I have a demo in a couple weeks and I'd like to get this figured out beforehand. The car has had the Z32 MAF wired in for over 3 years so I know it's not a faulty wiring job with that.

oni jake · 05-10-2011, 02:42 AM

Did you ever fix this problem?

04-18-2011, 08:53 PM	#1
khilgers Zilvia Addict Join Date: Oct 2005 Location: Twin Cities Age: 43 Posts: 893 Trader Rating: (0) Rides Gallery: khilgers Feedback Score: 0 reviews	S14 SR20DET intermittently cutting out I've been having an issue since late last year with my car randomly cutting out, almost like you unplugged the MAF and I am not able to rev, the car will barely idle, will sputter, then 1 second later it's fine. There is no consistency to the times that this will happen. I can drive it for an entire day with no issues, then drive it the next day and it will happen 5 minutes after I leave the house. I thought at first that this was something MAF related. At the last Drift Day of the year my MAF wiring made contact with my manifold and melted about a 6" section of it. I pulled it all apart and luckily when I had the car wired we had about 4' extra of wiring bundle up by the ECU. So, I cut out the last section of wiring, soldered my Z32 MAF plug back on and I thought that would fix the problem. It did for about a day, then the problem came back. Any idea on what would be causing this? So far I have tried: -cutting out melted section of MAF wiring, and soldering on Z32 plug -trying a different Z32 maf -trying a different Z32 plug -moving the ground to a better, more reliable spot -cleaning both MAF's I have a demo in a couple weeks and I'd like to get this figured out beforehand. The car has had the Z32 MAF wired in for over 3 years so I know it's not a faulty wiring job with that.

05-10-2011, 02:42 AM	#2
oni jake Zilvia Junkie Join Date: Sep 2007 Location: ---------- Posts: 416 Trader Rating: (5) Feedback Score: 5 reviews	Did you ever fix this problem?