Harry_ Posted Friday at 20:36 Posted Friday at 20:36 Hey guys, I had a pre MOT 5 weeks ago and the car failed on emissions. I bought uprated coil packs and spark plugs as she was running a little rough. They took so long to come I’ve just had them fitted today however the emissions are still a problem so, my thoughts are that the cats have gone. My MOT is now due next week and with my work schedule I can’t really do much about it. I have a bottle of Cataclean and a dream. Has anyone used this product and did it work? For reference I have high flow cats not stock. Quote
ZMANALEX Posted Friday at 21:29 Posted Friday at 21:29 The high flow cats will probably be the issue. Make sure that they are really hot when you have the test. A friendly MOT tester would also help. 1 Quote
G1en Posted yesterday at 09:17 Posted yesterday at 09:17 my friends car, cough cough.... was struggling to get through this year and the tester knew a few tricks, blocking the other tailpipe with a rag and and putting a rag around the probe on the tailpipe being tested drops the emissions flow and reduces engine revs so the emissions readings lowered, my friend said he could see the numbers drop on the computer and it worked a treat, apparently..... 2 Quote
Keith D Posted 2 hours ago Posted 2 hours ago (edited) Cataclean by itself no I never found it to be an MOT fix on any car. I guess everyone has to find what works for them, but the combination that works for me (so far) is cobra HFCs, Radium oil catch cans (vapour reduces octane which reduces burn efficiency therefore increases CO and HC), and a drop of Wynns pre MOT cleaner and a good blast the week before. Edited 1 hour ago by Keith D Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.