Failed emissions MOT Ford cougar 2.0l?
My 2000 (V plate) Ford cougar 2.0L zetec failed its mot today on Exhaust emissions.
My readings are as follows
Fast idle test
co = 0.21% = pass (max 0.30%)
hc = 36 ppm = pass (max 200)
Natural idle test
co = 0.54% = Fail (max 0.50%)
the car had a new cat fitted around 6months ago along with new ht leads.
Any idea's to get that 0.04% drop in idle would be great!
David
January 2010