engine light on aswell as over fueling, black smoke, spluttering and tickover poor

[-Richard-]

ok well i was driving down the motorway tonight at 75/80 and my engine light has come on, later on this evening on way home when i let off the gas it backfires, and also on tick over it sounds like a american mussel car asif its like rough like coughing kinda thing not smooth if you get me?

does anyone understand this?

[-Richard-]

anyone?

[-Richard-]

can't believe no one nos

[Alex]

It is xmas, people are busy atm so dont expect an instant reply.

[westy2k1]

injectors blocked? plugs loose or need renewing? fuel filter clogged? could be a number of things mate, best thing to do is eliminate things and narrow it down to a specific area.

[-Richard-]

ok, checked all lamber sensors, erm new symtens are over fueling with black smoke, plugs are black as well as exhaust, back fire and flame from exhaust and shit tick over with the odd spluttering on acceleration

[biteme]

loss of power? head gasket gone? any piston slap??

[Sean]

when you say you've checked the lambda sensors, how did you check them? Black smoke is overfuelling, so your injectors are fine (if they weren't they would underfuel). Check your ignition system - spark plugs then onto coilpack. If the lambda has had it, it would go into limp home mode where you'd lose a lot of power but the car would still drive up to about 3k revs then after that you'd have nothing ie enough to get you home.

[-Richard-]

i checked the plugs they were black but thought this was caused by the overfueling

[Sean]

could be both a symptom and a cause, if they're not igniting the fuel/air mix then unburnt fuel will just come right out the exhaust again. This happening over and over will make the plugs black and give the symptoms you describe.

[-Richard-]

what do you suggest then new plugs?

[craigy_87]

what do you suggest then new plugs?

would be a good place to start an doesnt cost much

if that doesnt solve the problem move onto the coil pack like sean said

[biteme]

dont spash money on them till u check other options id say get a light wire brush to them clean them up, check haynes manual with a micro meter and check the distances from th rod to the other bit (forgot its name) i.e where the spark travels as it might not be sparking at all!

[-Richard-]

thanks

[vidal]

Or why not sell your car to any of the deluded fools on here who want to Pop da flamez.

You could be onto a winner.

Actually, see if you can get plugged into a diagnostics computer, as others have said - clean and re-gap the plugs, change the filters and see how it goes.

What oil are you using?

V.

[-Jason-]

Just a suggestion but the ecu might have gone wrong sending wrong signals to the fueling system.

Another option is the crank possition sensor which also send messages to the ecu and fueling.

As a first resort i would do plugs and leads then if problem is still there diagnostics so you dont spend any money on things you dont need

[-Richard-]

ok thanks

[-Richard-]

castrol 10w 40 magnetec

[ScottyD-VTS]

My Guess would be plugs lambda or the TDC Sensor(Crankshaft Sensor) If all else fails prob have to stick it on a diagnostics machine from shitreon

[-Richard-]

plugs were black

[GRAHAM2000VTR]

hey so many people on here is that richhyg who had the manifold of me after i fitted standard manifold back on i had same sorted of problem turned out to be lamda sensor where is had been in out in out etc i just code read mine at work at that what came up id say get some one to code read it for you mate

[-Richard-]

what did you do then, get a new lamba sensor, i did have the manifold off of u but it has been on 3/4 months and has been running fine

[Predator_R32]

spark plugs are black??

got a picture of them or descibe them better, was it a soot or oil??

also what air filter do you have, could be the filter needs cleaning :)

[S70KES]

get it plugged in to a testing machine buddy that should pin point the issues.

[-Richard-]

spark plugs are black??

got a picture of them or descibe them better, was it a soot or oil??

also what air filter do you have, could be the filter needs cleaning :)

looked like soot mate i got sandpaper on them and cleaned them up but still got the problems also my endpiece of the exhaust is black with soot as well when i rev up black clouds of smoke comes out this smells realy bad of petrol so im guessing its miss fireing and overfueling