HI, when i first start my 6n 1.4 16v it seems to miss fire and does not run rite but as soon as the engine warms up the car runs perfect! Does any1 have a clue what this could be? realli annoys me now
cheers eddie
my 6n 16v plays up when is cold! HELP......is pissin me off!
Start with a TB clean, usual diagnostic for polos 
Missfires, could be anything on the side of ignition at a guess, faulty sparks, HT cables, distributor? Another possibility temp or lambda sensor. I'd start at the plugs & ignition system, possibly start with a spark plug replacement, if no luck look at other options or an electronic diagnosis. Check also when it was last serviced if you can as that might lead you to suspect it to be a service based fualt or not.
Maybe a wrong firing sequence...? (doubt it as it runs fine once warm). Other suggestions to the problem are:
Haynes says for backfiring:
Timing belt incorrectly fitted or tensioned belt
Vacuum leak at TB or manifolds
Blocked Fuel injectors
Ignition Timing incorrect
As for engine difficulty start when cold from Haynes:
Weak/discharged battery (I had this, battery was really unreliable)
Ignition timing incorrect
Warn spark plugs (very possible, as they crack on the inside, so once they heat up the contact is remade with the broken filament or so I've heard)
Fuel injection fault
Ignitions system fault
Low cylinder compressions
Hope this helps.
Missfires, could be anything on the side of ignition at a guess, faulty sparks, HT cables, distributor? Another possibility temp or lambda sensor. I'd start at the plugs & ignition system, possibly start with a spark plug replacement, if no luck look at other options or an electronic diagnosis. Check also when it was last serviced if you can as that might lead you to suspect it to be a service based fualt or not.
Maybe a wrong firing sequence...? (doubt it as it runs fine once warm). Other suggestions to the problem are:
Haynes says for backfiring:
Timing belt incorrectly fitted or tensioned belt
Vacuum leak at TB or manifolds
Blocked Fuel injectors
Ignition Timing incorrect
As for engine difficulty start when cold from Haynes:
Weak/discharged battery (I had this, battery was really unreliable)
Ignition timing incorrect
Warn spark plugs (very possible, as they crack on the inside, so once they heat up the contact is remade with the broken filament or so I've heard)
Fuel injection fault
Ignitions system fault
Low cylinder compressions
Hope this helps.
Mine what miss firing I thought valves and stuff had blown and thought it was gunna be a big costly job, well had a few other probs other than that but they cleared up and it ended up just miss firing.
Basically I just got told its the spark plugs, took them out and one of them was covered in black gunk, my advise is just get some new ones of them first, its cheap and its easy to do, even if its not the spark plugs its always good to have a fresh set in
Basically I just got told its the spark plugs, took them out and one of them was covered in black gunk, my advise is just get some new ones of them first, its cheap and its easy to do, even if its not the spark plugs its always good to have a fresh set in