car just failed emmisions test at fast idle, i am just waiting for the car to cool down and i will swap the Berk fre flow for the OEM and hope this gets me in spec
i know the Berk free flow can pass the test so im not blaming that, the worrying thing is the car is blowing blueish smoke so it looks like im burning oil, other than the obvious rings and valve guides is there anything i should check before going back with the OEM cat fitted?
i havent noticed the car smoking like this before and the only thing i have done is to change oil from the shell 10 40 to the Opie oils recomended Sikolene 5 40, could this have an effect?

any tips or advice welcome, if i can get it passed i can then start to look at fixing the route cause, which is probably not going to be cheap

 

blue ish smoke and your still running the aem fic iirc

could be over fueling( most prob) , hence alot of smoke and failing sniff test


just a though

 

Blue smoke...

Does the rotrex have an oil supply from the engine oil system, or does it have it's own?

Is the oil breather pipe caked with oil?

Did it fail on high HC levels?

Finally (not oil related) are you running the AEM of piggyback on the OEM?

 

rotrex has its own oil supply and its not a big qty so if im burnning that it would show quite quick
yes i am using the fic but the AFR was 15 during the test so should be ok

just finished installing the old cat and redirected all the breather pipes so they dont feed back to the intake, im of for a re test wish me luck

 

I was going to suggest removing the breather but it's a bit naughty

 

its just sailed through, bit confused now i wasnt expecting such a difference
before readings
CO 1.32% HC396 ppm

second test
CO 0.02 HC 2ppm

just a quick recomendation for the test centre
In and Out services ltd milton keynes
they tried several times to get the readings correct and no recharge
even though i left the garage

 

So the only change was the cat and breather pipe?

Any blue stuff this time?

 

no smoke but i could swear there was none after driving home
right now both breather pipes go to a catch tank that has a breather filter fitted, i will monitor the tank see what i get

 

Yep would be interesting ot see if there is any build up.

If the car wasn't really up to temp on the first test it might just be some oil passing by the rings while things expand. More likely on a 5w than a 10w I would think too.

 

I'm sure the 'Lude doesn't puff blue occasionally and uses less oil than it used to.

I don't know if it was cleaning out the breather valve on the cam cover, re-setting the cam timing ( the world is full of morons ) or even if the valve stems have got better because I've lobbed so much carb cleaner down its gizzard. But it's weird.