Big emissions failure. :(

[toadthepimp]

Just took my glanza for mot and all was fine except emissions.. On all tests the CO was about 6.5 - 7% and the lambda was 0.82.... Both fails, but HC passed (just - by 4ppm!!) any thoughts would be good I'm thinking boost leak, or too high fuel pressure or timing?! It's got fuel pump, fpr, cat was fitted, ct9 turbo, runs a little rich on low rpm and a bit lean on high rpm..

Had a lot of stress with the car recently, and was hoping it'd go we'll for a change! Not driven the car for a month and a half!

[daniel_g]

Set the ignition timing to 10* BTDC

Set the fuel pressure to standard which iirc is 2.4bar (if you have an aftermarket FPR)

Check for any exhaust leaks

Check for drawing in air at inlet (this would normally give hunting / a high idle)

Replace the o2 sensor if you want

Take it for a good run, kick its cunt in and get the cat up to temp

[toadthepimp]

Thanks man! I'll try a few things

No idea what the numbers mean tho.. Lol

[daniel_g]

Yeah the CO is waaaay over, normally just overfuelling but there are hundreds of causes, few to check.

Fucked o2 sensor

Restricted air filter

Vac leaks to MAP sensor (car would barely run)

Fucked cat or not up to temp

Carbon canister fuel vapour system inop

Fuel / oil contaminated together

Or just not changing oil frequently

Thermostat stuck wide open

Thats concentrating on the CO related things.

Hope this helps somewhat buddy and keep us up to date with how you get on

[Jap91]

Im having the same prob,have changed cat,lambda,injector seals an still the same!

Mines not as high tho both idles are in around 3.4percent..

[hookie663]

Mate check your timing and fuel pressure I had same problem

[pick1]

Take it to a more friendlier garage lol

[Adam-Gt-]

So glad I've got a glowbadge no emission test for me just a visual smoke test !!

But say that my mate used to do emmision test on my car with his eyes closed

[mikey4410]

exactly. mot places are about that are blind to emissions.its true.

[Glanza1996]

I got to try and find someone who dosent do emissions test around hampshire (southampton) area if anyone knows of any please send me a PM thanks

[5e colin]

there only reving 2.6 k there over ere they do 3000rpm !!!!

check if there is a injector stuck open because thats waaaaaay off