Reece350z Posted April 22, 2016 Share Posted April 22, 2016 So after all my bad luck with this car it's got worse! 2002 Nissan 350z fairlady auto with approx 87000miles The sump was leaking so took it off and resealed it all.. So that's the oil leak fixed. Went to start it up and nothing what so ever.. The starter wasn't turning or even clicking can just hear a lot of different beeping by the throttle body.. Doesn't stop but never heard it before this problem? Tested the battery with load and tested fine So took the starter off and tested it on the bench and it works fine but couldn't hear the solenoid clicking as it should? Tested the starter relay and checked all fuses and they're all okay. Tried putting an earth right from the battery to the starter to eliminate any earthing issues and still nothing However when I checked the negative connector which runs towards the starter motor I don't get a voltage while cranking. Is that NATS? Also doesn't display the gear-lever position on the dash with ignition on but can't remember if it did or not before it, it's currently a black screen. Has it forget the key after having battery disconnected for a week or so? It has what I think is an aftermarket immobiliser with a fob you push in.. Not sure if that's standard. Does anyone have any ideas where to look next? Quote Link to comment Share on other sites More sharing options...
Ebized Posted April 22, 2016 Share Posted April 22, 2016 Did it start OK before you did the sump leak? If so, can't help feeling you may have lost the engine earth connection to the chassis. I have experienced that issue when the earth cable had basically part-rotted and movement eventually lost its effectiveness. Quote Link to comment Share on other sites More sharing options...
Reece350z Posted April 22, 2016 Author Share Posted April 22, 2016 (edited) It took a while cranking to start but got there eventually! The earth band? From the block to chassis? That's there.. I ran a big cable from the negative terminal to the starter bolt and it still didn't work. Edited April 22, 2016 by Reece350z Quote Link to comment Share on other sites More sharing options...
Ebized Posted April 22, 2016 Share Posted April 22, 2016 PM Zmanalex - hopefully he might have the answer then Quote Link to comment Share on other sites More sharing options...
Reece350z Posted April 22, 2016 Author Share Posted April 22, 2016 He's been the man with all my other problems! Quote Link to comment Share on other sites More sharing options...
Reece350z Posted April 26, 2016 Author Share Posted April 26, 2016 I've used a power probe to the solenoid and it turns over okay.. So I'm thinking now it's ignition switch? Or NATS? Quote Link to comment Share on other sites More sharing options...
Reece350z Posted April 27, 2016 Author Share Posted April 27, 2016 Tested from ignition switch to starter relay, getting 12v there.. So it's not my ignition switch. Tested continuity from starter relay terminal to the connector for the starter solenoid and it's okay. Swapped and tested relays around and still no crank no start. I'm struggling to find the TCM I think it's inside the gearbox sump? I'm almost certain now it's the PNP switch but I can't find that unless it's what the green connecter goes into on the side of the gearbox. Anyone have any ideas on what I can do next? Thanks Quote Link to comment Share on other sites More sharing options...
Reece350z Posted May 3, 2016 Author Share Posted May 3, 2016 Can someone please help and tell me if there auto 350z shows what gear it's in while the ignition is on, If it displays it on the dashboard. Thanks Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted May 3, 2016 Share Posted May 3, 2016 Just saw this since your last PM. Sounds like it is your Park Neutral Position Switch. Remember that when fitting a new one it has to be adjusted before you nip up the bolts. Quote Link to comment Share on other sites More sharing options...
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