have changed PTU,plugs and all coil packs working bit still no spark from rear drivers side cylinder :headvswal :headvswal :headvswal

awaiting new coil pack connector coming as the one thats there is cracked an broken.

anybody any ideas :confused: :confused:

 

Also what vac pipes are around the clutch reservoir area can here a hissing coming from under it

 

cheers guys

broken wire!

bump

I have exactly the same on the very same connector. Sorry but I wiggle the connector wire above it with the engine running and can hear the 6th clinder come back on. The wire would need to be bent in a certain direction to keep it on and if it moved it would drop out again. It would regularly do this in winter but its been fine for the past few months. One day I'll take it apart and replace the connector!

 

The garage that had the engine out to do the turbos changed the front 4 connectors but left the 2 rearmost ones.

its a simple enough job to solder new connectors in anyway

Yeah, meter out the wiring loom to check for a broken wire.

Yeah, meter out the wiring loom to check for a broken wire.

 

 

could you tell me what i'm looking for from the three pins :confused:

resistance,volts, ignition on or off :confused:

cheers

You want to measure the resistance from the PTU plug through to the coil pack plug to verify whether it's broken or not. May also be worth measuring from the ECU plug through to the other PTU plug.

 

http://www.300zx.co.uk/tech/manual/manual/diag/001.gif

 

Can't work out which pins are which from this - you'll have to experiment. Start with a working one, eliminate the other working ones and the last one will be the faulty one - probably. Ultimately, you'll probably end up replacing the plug, it's really a question of how far down the loom it's broken.

You want to measure the resistance from the PTU plug through to the coil pack plug to verify whether it's broken or not. May also be worth measuring from the ECU plug through to the other PTU plug.

 

http://www.300zx.co.uk/tech/manual/manual/diag/001.gif

 

Can't work out which pins are which from this - you'll have to experiment. Start with a working one, eliminate the other working ones and the last one will be the faulty one - probably. Ultimately, you'll probably end up replacing the plug, it's really a question of how far down the loom it's broken.

 

 

cheers Andy :bow: , any ideas about vac pipe under or around clutch reservoir :confused: can hear it, just cant pinpoint it

the one under the clutch res goes onto your clutch booster inside the car.

 

the ones around it are brake booster hoses and clutch booster > to vac tanks

 

These are all the 20mm hoses

cheers guys will have a dig around its there somewhere waiting to be found

You want to measure the resistance from the PTU plug through to the coil pack plug to verify whether it's broken or not. May also be worth measuring from the ECU plug through to the other PTU plug.

 

http://www.300zx.co.uk/tech/manual/manual/diag/001.gif

 

Can't work out which pins are which from this - you'll have to experiment. Start with a working one, eliminate the other working ones and the last one will be the faulty one - probably. Ultimately, you'll probably end up replacing the plug, it's really a question of how far down the loom it's broken.

 

 

have just cut back the protective piping around the connector a fair bit and the wiring seems to be new??? awaiting my new plug to arrive so I can try that, if that fails I'll have to try an trace the wires :headvswal