[Ed 718]

NISSAN 350Z TROUBLESHOOTING GUIDE

CAR WON?T START:
1. Check ECU harness to make sure it?s seated properly
2. Check EVAP solenoid and ensure harness is connected ( located at the back of the intake plenum )
3. Check EVAP solenoid fuse near the rear fuse panel behind battery
4. Check fuse pump fuse also near the rear fuse panel behind battery
5. Check for codes and troubleshoot ( must have codes ready )

CAR GOES INTO LIMP MODE DURING ACCELERATION:
1. Verify MAF is connected and wires are intact
2. Check boost level. If over 8-9 PSI verify wastegate boost signal line is correct port ( lowest port further from logo ) if so verify wastegate relocation pipe is installed.
3. Check for boost leak at or after MAF
4. Verify throttle body is operating correctly

ECU THROWING CODES 1273, 1284 OR ANY O2 RELATED CODES:
1. Verify 02 sensor connections are installed properly
2. Verify 02 sensors are installed on proper corresponding connector
3. Verify 02 sensors are installed properly
4. Verify correct downpipe version is installed ( has O2 extenders welded on )
5. Swap 02 sensors position on downpipe

CAR NOT BUILDING FULL BOOST:
1. Check for boost leaks
2. Verify boost signal line is in proper position on blow of valve ( upper most port closest to logo )
3. Verify waste gate signal line in installed properly ( lowest port furthest from logo )
4. Check for exhaust leaks

CAR RUNNING EXCESSIVELY RICH:
1. Verify stock fuel pressure regulator has been modified per instructions
2. Verify fuel pressure is correct ( 52-55 )
3. Verify BOV signal line is installed properly ( upper most closest logo )

CAR MISFIRES:
1. Verify injector harness is installed correctly
2. Verify coil pack connectors are installed correctly
3. Verify spark plugs are not fouled out
4. Verify MAF sensor harness is installed correctly and wires are intact
5. Verify MAF is installed properly and is functioning
6. Verify there are no vacuum leaks post MAF

CAR DETONATING UNDER BOOST:
1. Check boost pressure
2. Check fuel pressure
3. Verify injectors are installed properly
4. Verify air fuel ration on dyno.

CLUTCH PEDAL STAYS DOWN AFTER FULL BOOST RUN:
1. Flush in high temp brake fluid in hydraulic clutch system
2. Replace stock clutch line with stainless steel braided line and heat wrap

CAR SMOKING WHEN COMING OFF BOOST:
1. Oil drain not installed properly
2. Oil drain line not above oil level
3. Turbo seal failed
4. Verify oil pressure
5. Oil lines restricted or kinked
6. Oil lines needs to make a smooth transition into oil pan ( no turns or kinks )