Hi i wonder if some could shed some light on this for me my mates zx has got no spark on no 5 cylinder all the others are fine hes evern swaped the coil packs around to see if this was the problem but no nothing changed, he's traced the wires back so far but cant find any breaks in them he's got a lwb tt auto jap import.

 

Thanks paul

Hi yes he swaped it for another one but it made no difference at all

Is there any way of checking them

I had this was a bad earth.

not that i know of. do you know anybody near you with a 300zx? maybe borrow theirs for a bit. lol. do you have the tools to do a compression test?

 

He's compression tested it but the problem he has no spark

I had this was a bad earth.

 

Really? is the one that runs from the engine to the body then to the battery

Boldy on here has 2 spare PTU's if you wanted to try one (my first choice)

If that isn't the problem check continuity from the PTU to the coil pack.:chinese:

Ok bud thanks for your help

not the connector itself all green and corroded? guess he's checked that?

Hey pmf....

 

I had this on my 300 very recently, but was #1 cylinder for me. No spark, coilpack fine, all electrical signals fine, plug fine, plug connector fine, injector connector fine.... I was a bit lost now.

So... i took a gamble on a faulty injector after many hours searching this and many forums, and guess what.....

It was a good gamble, turned out the injector had failed and could not get enough fuel into the chamber to combust.

 

Hope this helps matey........

 

Al.

not the connector itself all green and corroded? guess he's checked that?

 

Hi baz no the connectors have been changed for new ones

Hey pmf....

 

I had this on my 300 very recently, but was #1 cylinder for me. No spark, coilpack fine, all electrical signals fine, plug fine, plug connector fine, injector connector fine.... I was a bit lost now.

So... i took a gamble on a faulty injector after many hours searching this and many forums, and guess what.....

It was a good gamble, turned out the injector had failed and could not get enough fuel into the chamber to combust.

 

Hope this helps matey........

 

Al.

 

Its deffantly not sparking he's had the plug in the coil pack and resting on a bolt on top off the engine and wizzed it over but got nothing,thanks for your help anyway

Either get a series II ptu and try that or there must be a break in the loom for that plug matey.

Hope you get it sorted soon........

Let us know your findings buddy, good for a search.

 

Al.

Hi thanks and i will do

I would deffo try and swap the PTU then if possible mate...