ok so i have just finished my engine rebuild engine was fully stripped out including everything out of the engine bay and now its all back in it wont start it will turn over but it wont fire can as many people possible throw ideas my way what would stop it fireing thanks we all want another zed ti live again we dont want to see another gone off the road LONG LIVE THE ZED :bow: :bow: :bow:

there would still be a spark when turning over though (just out of time)

he did say he seems to get a spark as he lets go of the key, but admitadly if timing is out a bit car should still start, unless valves are bouncing :wack:

Have read on another thread that often if the ecu connector is screwed in too tight it doesnt start either, just a thought.

 

Mines outside the same turns over but doesnt start. It was starting but had a misfire so I cleaned the temp sensor connector and now it wont start! Ive ordered a new PTU as mine is the original S1 and a second hand good working CAS and new sensors as Im tired of trying to find out which bit needs a wiggle!

 

Good luck Z1 in the states are selling PTU for 150 dollars and good used CAS for the same if you want to do the same.

were is the ecu connector in the engine bay thanks

I had a very similar prob, ie no spark and the fan running after I let go of the key. In my case, and thanks to this forum, it was the connections in the loom under the bonnet, not sure which one as I simply cleaned and checked all of them that I had been anywhere near. And I also "settled" the wiring down a bit, I mean, I tried to make sure the loom was not stretched, if you know what I mean?

 

This got me a spark. The fan stopped running too.

also check ur earth wire comming from yor ecu to the ignition relay in engine bay, i had a prob with that and car wouldnt start, just occasnaly sparkd. i think its orange black wire.

ok so today i have swopped the ptu and the cam shaft sensor cheacked all injector wires/plugs and earths and strill no fire any more help offered thanks

have you carried out a compression check after the engine went back in?

have you carried out a compression check after the engine went back in?

yep was checked

still no luck just will not start done al the above would the gearbox earth not being atatched stop the car from fireing thanks