black Smoke

[hazza]

Hi guys, when i start my car no matter if cold or warm it seems to blow out a fair bit of black smoke (i had my car up against a wall and i started it and then had a look after there was this big black circle). I have replaced the o2 sensor for the idol but wats it making it run so rich. And because its running so rich could that be stopping from starting properly
Thanks guys

[holden007]

change the temperature sensor (ecu), located behind the alternator.

[hazza]

By me changing this it shoudl stop the car running so rich

[fitzy2005]

could do, could be a fuel pressure regulator problem, give the car a service too and clean throttle body with carbon cleaner

[hazza]

Yeah my mechanic who is meant to be servicing it has been to busy but hopefuly in the next week or so. The throttle body i have replaced twice. the first time it was mucking up for some reason sensors aybe. so then i replaced it again but i didnt have enough time to clean it so i will do that.

[vt1538]

Could also be leaking injectors.

[SWEET VS CAPRICE]

I doubt leaky injectors. Mine at the moment is being a total biatch. Same problem. The ol 5 litre has a cold i think.

[leigh 7005]

make sure your injectors are working corectly

[leigh 7005]

it could also be a blocked cat

[vn calais manual]

change the temperature sensor (ecu), located behind the alternator.

do this first. then see how u go, costs about 17 dollars from holdens.