Poor Me NCT fail :-(

jayscully

:(My 1995 Nissan Almera failed the NCT on the high idle emmission (only slightly off) . I was just wondering what the next step is to get it fixed.

I've heard it can be a number of things but dont know how or where to get it tested to pin point the problem.

Any advice greatly received :):cool::rolleyes:

meathstevie

Get the engine to run a bit slower in idle. A proficient mechanic should be able to do that bit of adjusting for you without too much trouble.

Captain Slow IRL

High idle is about 2500 to 3500 rpm stevie.

Your local nissan main dealer is probably your best bet - what were the results, out of curiousity?!

colm_mcm

use Maxol E5, if it's marginally out?

meathstevie

High idle = normal driving revs ? ok

Timmaay

This isn't really related to the idle, and could be complete BS, but I've heard that putting a tenner of petrol in a diesel car just before it goes in for the nct will help reduce the emissions. My friend did it with his 97 A4, he said afterwards that the emissions were well within the limits anyway (why he did it in the 1st place, I dont know, the car could have been chipped). This might do damage to a modern commonrail diesel, but didn't seem to do his car any harm:)

But on a more serious note, the lambda sensor could be dodgy, you could have a leak somewhere in the intake or exhaust that would knock the lambda sensor off a bit. best thing to do is get your local mechanic to look at it.

Atomic Pineapple

yeh i failed on the high idle test last week too, but the Nct pin pointed that it was leaking that was the problem, does it not pin point the problem on your sheet beside where it says what it failed on?