i am seriously getting wound up with taking my car to garages and after 10 mins looking under the hood just shaking their heads and saying nah mate! i have just taken car for mot and it has failed on emissions - co was fine 0.91% (limit was 3.5%) but the hc was 1712 (limit was 1200)ppm. the mot bloke said it was missing or backfiring. the car has been playing up since ive got it hesitating, slow idle 300 after accelerating and stalling when it feels like it and the wires to the spark plug coils are dodgy making it run on 5 or less every now and again. Are these problems related, what could be causing it and where is there around northants could i take it.

see my reply in a previous post RE MOT emmisions test.

 

but, yes they are related. HC is unburnt fuel, any misfire will cause poor combustion & high HC levels.

 

check & clean all the connectors you can find in the engine bay!!, well mainly PTU, CAS, Coils, TPS, engine temp sensor. :)

 

check the plugs/filters have been done & pray its not your valves not seating ;)

Marcus

 

Where abouts are you? If you are close to Derby I could take a look for you- I am NOT the most knowledgeable however. You may want to take it to Zedworld in Tamworth or Duffman's in Preston- possibly too far for you.

 

If you need my assistance let me know.

 

Van

ok thanks i will change the spark plugs oil etc while i am messing about with it and clen up anything i can get to the air filter has been replaced with a induction kit dont know what and see if that works. what spark plugs should i use?

There is a section where some one sells spark plugs on the forum. Ask there. I think they are a little cheaper than the Nissan ones and said to be better too.

cheers mate any ideas where to find them?

Originally posted by MARCUS

cheers mate any ideas where to find them?

 

http://www.spark-plugs.co.uk/pages/specials/300zx.htm

Originally posted by MARCUS

cheers mate any ideas where to find them?

LOL try the spark plug section of this forum :D

marcus,have you solved the problem? what was it? add me on msn i live in wbro fusionmx2@hotmail.com

marcus,have you solved the problem? what was it? add me on msn i live in wbro fusionmx2@hotmail.com

This thread is over 3 years old, and Marcus has'nt been online since June last year!

Oh nooo!!! im sorry !! :hyper: :hyper: :hyper: :hyper: :hyper: !!!