Having problems with your 2000 Mercury Cougar ?

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!

Posted / edited by AnonymousUser on : 01-06-2020

Answers :

Give it a good hard run and make sure its hot when taking it for its retest. easy as that
Repair Help & Product Troubleshooting for 2000 Mercury Cougar

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