posting for a mate TT 300z just cut out while drving wont start ??

Hey a mate was cruzing in her z and went to over take anuther car so she floored it and then the engine was cutting out then it switched off. Now she cant start it back up ?

It cranks over but wont run at all so what do you guys think ?

Blow ignition fuse ?

Fuel pump ?

FPCU ?

PTU ?

Would it be worth bypasing the fpcu or something ?

Can anyone be of any help ?

Thanks mike

Cheers mike

 

ptu dude. or something random like his battery has dropped a cell

 

nar man her bat still produces enuff current to crank over.

But thanks man anyone else know ?

cheers mike

 

Can you hear the fuel pump priming when the key is turned? Id say PTU..

 

If its the PTU it may work fine when its cold again but experience problems when its warm.

 

wat he said my ptu is farked and car will only start wen cold, more info is needed! dose her fuel pump brime? is it getting spark? i had a similar problem along time ago car spluttered then turned off,,waited 10mins and it was fine, i think that was signs off the ptu failing but i duno

 

yes she says she can hear the fuel pump priming.

 

mine did similar

Could be CAS.
Just a thought Andy

 

Try PTU

Nissans questionable electrics , I have changed out two ptu's You could try yours in her car ?

 

Listen to injectors with screwdriver while cranking.

Smell for fuel from exhaust

Jiggle PTU connector, then check for spark by removing a coilpack and plug

 

wiked thanks guys

 

i reckon its the crank angle sensor, or connector

 

Not always... Mine died and wouldn't start regardless of temp.

I reckon PTU.

 

check the engine belt!!!

 

That has no effect on the engine actually working...

Mine still starts with no alternator, air con, PS, water pump, AFM, CTS and other stuff.

 

...however it does need the timing belt.


btw my bet is on PTU also wldttz

 

Wouldn't crank with a snapped timing belt.

 

broken timing belt wont stop engine from cranking unless the pistons have hit valves.

pull the cam cover off and crank the engine to see if the cams turn. if they dont then your timing belt is snapped.

 

If it's a broken belt the pistons WILL hit valves, interferance head design.

 

fortunately you are not 100% correct. Pistons MAY hit the valves.

I know this because when I bought my Z it had a snapped timing belt and pistons had not made contact with the valves. the engine freely turned over by hand. I was very lucky. It all depends upon the position of the cams / crank when the belt snaps