Quote:
Originally Posted by Luxobarge
Another vote for Cyclogenesis's post. The vast majority of these cars (mine included) fly through the emissions test with flying colours, and come nowhere near the limits. I would suggest that there's an underlying problem with yours, and any fuel treatment (if it works at all) is only masking the problem. As stated, vacuum or intake leaks are the most common cause.
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Hi Again Luxobarge, most interesting, especially your reference to "masking" the problem. The ITV [ MOT ] testers have said on more than one occasion that my Cat is on the blink and further that all Volvos they get to test all need to be "thrashed" round the block before emissions testing. They say it is a known weak point with Volvos.
Showing my ignorance yet again, my mechanic checks pipes and jubilee clips for leaks, but is there anything else he should be checking that could be the cause of poor emissions. thanks jack