 Failed emissions test |
 Apr 25, 2015 - 2:28 PM
|
 
|
|
Enthusiast Joined Apr 21, '15 From Portsmouth Currently Offline Reputation: 0 (0%)  |
Evening all,
This is my first post here so please be gentle =P I've recently brought an ST202 and today it went for its mot, apart from the various braking issues it failed on engine emissions. I know the car has been sat for a year or so and it did have some old fuel in it so I'm hoping that a fresh tank and some Wynns fuel treatment will do the job however the natural idle speed was lower than the limits, is there anything I can do to bump up the idle a fraction? Also is there anything else folk would suggest to get it through? Emissions sheet attached FYI. 
|
 |
Replies
|
May 16, 2015 - 1:43 PM
|
|
|
Enthusiast Joined Apr 21, '15 From Portsmouth Currently Offline Reputation: 0 (0%) |
Hi all,
Sorry this problem is still ongoing. I replaced the lambda, the car got retested and it passed the lambda test but still failed CO. Today I changed the cat and guess what, it's now failing again on both lambda and CO. I can't find any leaks on the system but I'm now looking at plugs and filter changes. Original failure results as OP. Post MoT with Denso lambda fast idle values: Lambda = 1.026, CO = 0.74%. Passes natural idle test. Today's MoT with Denso lambda and pattern part new cat fast idle values: Lambda = 1.037, CO = 0.42%. Again passes natural idle. Has anyone experienced issues with pattern part cats? My only other thought is that the few miles to the test centre weren't sufficient to 'break in' the cat. MJ |
Posts in this topic
pompeymj Failed emissions test Apr 25, 2015 - 2:28 PM
Smaay get a new CAT Apr 26, 2015 - 1:23 AM TARManiAC Lambda/oxygensensor in exhaust might be out. New f... Apr 27, 2015 - 5:35 PM pompeymj Cheers for the suggestions, I'm also contempla... Apr 27, 2015 - 5:42 PM Jmk91 Amazon/eBay is far cheaper than any parts store. I... Apr 29, 2015 - 5:55 AM
Bitter Yea, takes more than a couple miles to get the cat... May 17, 2015 - 1:20 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
| Lo-Fi Version | Time is now: November 21st, 2025 - 3:10 AM |