black smoke

[mr neon]

car was running fine then died, managed to re- start but running like a dog,like choke fully on. has anyone got any idea what it could be?its a2.5 with a omex ecu. only had 3 weeks so not familiar with everything on car yet, many thanks, steve.

[Gadgeroonie]

check the water temp sensor has not failed

[mr neon]

not trying to be thick but can you give me a clue where that would be,thanks for helping.

[Gadgeroonie]

is it doing it when the car is cold or warmed up ?

also check the vacum pipe has not come off the map sensor

[Mike Tuckwood]

Hi Stephen.

Sounds like it's massively overfuelling, if it is, it will probably be missing firing on some cylinders too?

If that sounds similar, you'll need for a start someone with some mechanical knowledge able to identify certain parts to inspect.

I had this recently, it was a dicky boost control solenoid, but not sure that the 2.5's had one (without looking)???
certainly sounds like a map (Manifold Absolute Pressure) problem so would concentrate in that area and with anything connected onto the intake manifold?


Mike.

[mr neon]

starts from cold fine but gets worse as it warms up,seems to be massive overfuelling but im no expert,will check out what you said,thanks.

[worty]

2.5's didn't have electronic boost control as standard but it could have been fitted since. I had mine done 18 months ago
worty

[mr neon]

thanks mike,it did seem to be missing as well, dropping revs on tickover then building up again.

[mr neon]

forgot to say i have a boost control gauge

[art411y]

as mike says,map sensor.i have a 2.5 map sensor that was on my escos and is i believe the same as used on our nobles in 2.5 form.used it on mine for a few days with no probs

[art411y]

Gadgeroonie said:

check the water temp sensor has not failed

also a defo place to look

[mr neon]

thanks everyone for all your help,hopefully will sort out problem over the next few days.least iv got afew places to look and check. cant be without me purple noble for too long as you guys no too well.