I have a mondeo 1.8 zetec. Failed CO emissions twice. C0 = 0.31 & 0.4
Mondy CO emissions
Nov 21, 2006
2 Replies
I would check the air filter and maybe give it a little extra air through a mod to an air pipe, as it is so marginal the slightest thing could tip it to a pass.
IIUC the cat will burn up HC rather than CO
Checked air filter already, actually had it oput for the test!!. Modifying an air pipe is a little beyond my expertise and I wouldn't know where to start. Local garage said change cat or plug and oil change. Anyone else with suggestions? Cheers
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