Lowering emissions for MOT

[richi]

Any suggestions?

Just been for a MOT today and it failed on the emissions being too high (he said almost double whats allowed)

What can i do to lower this? Its been of the road for 3 years so not sure if it has anything to do with that,

Although since i last had it MOT i have had a 4-1 manifold fitted

[paul james]

What engine is it> carb or injection?
A 4-1 wont make a difference unless its a cat model and you've left the lambda sensor off.

[richi]

its a 2.0 xe, didnt think the manifold would make a difference just thought id mention it, looks like the lamba is in the manifold, could it be faulty?

[meritlover]

It would help infinitely if you posted the results of the emmissions tests.

[Will F]

Fit an adjustable fuel pressure regulator and turn the pressure down - ta daaa!

[Stuart]

Fit an adjustable fuel pressure regulator and turn the pressure down - ta daaa!
Fit an FSE at the right pressure and it will drop it for you at random times :D

[BRoadGhost]

Hydro carbons or co2? Changing anything on the engine could effect emissions enough to put it over - taking off any / all intake filters would help lean it out I expect if it's over 3.5% on hydrocarbons.

[richi]

Thanks all i will ring up and ask for the readings.......how hard is it to fit a fse?

[Stuart]

how hard is it to fit a fse?
NO, just no!
fse stands for fucking shit equipment

[Andy]

Fse with a powercap,a k and n dustbin filter,with a big bore backbox were the makings of a 190bhp redtop back in the day lol lol lol

[richi]

Fse with a powercap,a k and n dustbin filter,with a big bore backbox were the makings of a 190bhp redtop back in the day lol lol lol

Wait i think i just remebered what a fse is, was that the crappy thing that just made your car overfuel?

haha i ment Wll F suggestion of fitting an AFPR, how hard is that to do?

[total_vauxhall]

Easy just requires fuel rail plate and a afpr

[Stuart]

and most AFPR's that folks get are the FSE's lol

[NitrousVaux]

deffo change the lambda sensor in the manifold, also check or change the water temp sensor, both will make it overfuel and fail the emissions. adjustable FPR would be a good further step too.

[richi]

thanks nitousvaux its cheap enough to change the lamba and water temp sensor so will give it a try....will let you all know what it comes back with thanks