Originally Posted by
yellowrscustom
i can get it on a gas analyser at a mot station+then adjust it down,i am up in the northern isles+no so easy to get 2 a specialist without a long expensive ferry trip!
you can adjust the mixture on the ecu; however this will adjust it for the whole map (i believe)
what chip is in the car?
it really does depend on the chip to be honest; it needs to be below 3% CO for an MOT
for example, my MSD chip needs to have the CO at between 2.5-2.7% at idle
if you have wideband you "could" adjust the CO to below 3% and then make sure the fueling is bang on using the wideband on boost - as this is when its "most" important