heya, took my imported z32 turbo for engine diagnostics test because of a misfiring problem, came back saying that its the coolant temperature sensor thats causing the misfire. went to nissan to get the part and they said they dont know if the UK part will be the same as the jap part...anyone have any ideas or have experienced the same problem??

yes they are the same, but check the connector first, its most likely corroded/dirty

thanks mate, will prob just go for the new one so that its 1 less thing to worry about. i didnt realise that this would make the car missfire,but thats what the garage said, any ideas about that?

Yes it does cause a miss fire if faulty or dirty as above.

Nissan (in my experience) are useless, and the garage near me refuses to give me even a ball park figure for 'a part', without my chassis number, even tho I know for a fact that 'the part' is identical on all Zeds. It's frustrating, having some spotty 17 year old lad convince himself that you know nowt, then eventually give you a price 10 times what you expected! :-) :-) :-)

 

Ah well, that's where you lot on here come in to play, balls to Nissan, hehe ;-)

thanks mate, will prob just go for the new one so that its 1 less thing to worry about. i didnt realise that this would make the car missfire,but thats what the garage said, any ideas about that?

 

Ok assuming you have what most would consider a misfire ie a cylinder failing to fire due to failed spark then quite why the temp sensor is at question is a puzzle.

 

The temp sensor can cause running issues due in most cases to simple dirty connections but this will cause overfueling, this would show as possible difficulty in hot engine starting due to flooding or poor pick up / hesitation /uneven running from idle due to overfueling, very different to a misfire.

 

Misfires are generally caused by poor connections to the ptu and injectors, a faulty air flow meter can potentially cause fuel drop outs that can sound like a misfire but are not strictly that.

 

You need to get a more detailed diagnostic, most "general garages" will not have a chance of finding zed type faults, find some one close to you with a ConZult and make sure that person knows how to use it and you will get a much clearer idea of what is the "real" problem.

 

Jeff TT

cheers for all ya comments, v helpful, ive fitted a new coolant sensor, about to take the car out but was wondering do i need to remove air from the coolant system or is it ok to drive? stupid question i know but...