Howdy guys, having an issue with the Zed atm that is driving me crazy. All seems well on consult, but after driving the zed for about 5 mins it falters, stalls splutters and stops. A 30 second break and it can be driven again for a minute or 2, ten the same thing. Going to swap over the ptu I have and maybe borrow an AFM to try but what other things are worth looking at. It ran beautifully all sunday on the cruise and the way home and now WTF. MattB
Tried with spare ptu and it wouldnt even start so I am assuming the psare one is dead???? Was fine last time I used it. Also cleaned the AFM and it seems smoother but still no reason for the cutting out!! MattB
It sounds very much like the ptu, id get a known working ptu and try that, sounds like you have a series 1 ptu?
If it's not PTU, it sounds like fuel delivery. Does it die while not driving it? ie if you just leave it idling, after a while will it just conk out? If so, watch your fuel pressure while it's happening. You may have a pump or control unit on the blitz.
Hmm yeah thought I would put the aftermarket pressure reg on and see whats happening with the pressure. Thought it fealt like a fuel issue! will try that and let you know got to go do some work know.
What fuel pumps are people using and where are they getting them from as I have been contemplating doing this as a preventative measure for a while???? And how much?
Hi Matt, I have a Series 1 PTU up on the shelf that was working fine when I pulled it. Yours if you want it.
i would say check you wiring ,, when plugs get hot the connection can expand ,, it will create your symptoms first thing afm ptu ect ect .. just go over it all before you change things over .. just my 2 sec ,,
I second the wiring solution. Had a similar thing happen to me, but upon reinstalling a spare PTU, the wiring harness plug was not connecting on the earth pin, as it pushed out the back of the plug.
Was thinking something like this as it would explain why it runs fine after playing with the plugs. MattB
UPDATE UPDATE - car ran fine to work - 3kms - It ran fine at low revs and normal driving unlike this morning - but I did notice it wasnt very responsive at all and wasnt willing to push it past the faltering just in case is a fuel issue (I like my engine the way it is lol). Yes it is a Series 1 PTU but is mounted in the nose cone and has never given problems before. MattB
how many people are still running s1 PTUS. nissan america did a recall for a REASON !!.. get a s2 and be done with it mate!
Have done over 130,000kms of trouble free kms since moving the series 1 PTU it came with to the front nose cone where it is cooler and not on the engine, but I am looking at swapping it and think it maybe part of the issue/or the issue. MattB
