DET code 34

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
User avatar
icemaninlv
Posts: 31
Joined: Tue May 27, 2014 1:46 pm
Car: 91 NA 300zx 2+2

Post

91 NA ttop 5 spd

So common code 34 issues, very low power and hesitation.
New parts: sub harness from Concept Z, and knock sensor
replaced parts cleared code, verified code 55.

Drove car still power issues and get home code 34 still there.

Diag via FSM troubleshooting diag 31. all wiring ohms out good! However still power lagging! :wtf2:

Bought a 1M resistor and going to check that out tonight.

My questions are has anyone experienced this before? if so what fixed it?
I had this problem on a supra turbo and the DET was shorted to ground and I rewired that however the Z all wiring is good. Please comment on your thoughts


User avatar
icemaninlv
Posts: 31
Joined: Tue May 27, 2014 1:46 pm
Car: 91 NA 300zx 2+2

Post

Added the 1M resistor and it drives much better. Still a little lag, going to inspect Crank sensor and timing


Return to “300ZX (Z32) Technical”