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- Wolfpack
- Member Since: 25 May 2019
- Location: Norfolk, UK
- Posts: 571
Too much oxygen in my tailpipe MOT fail..pass
The D5 failed its MOT with an extremely high fast idle lambda reading.
The technicians spent some time trying to locate a leak in the exhaust manifolds or other connectors but gave up saying I needed to get a LR specialist to take a look. Nice of them to try I suppose.
Sat at home wrestling with the paradox of perfectly normal HC and CO figures and yet very high lambda ….with AI help.
After an hour, I had compiled a list of key investigations to discuss with the Indie on a hastily booked visit for next week….before the MOT expired.
While imbibing a well deserved coffee the phone rang…the MOT station.
Quite incredibly the next car on the MOT ramp also had a very high lambda.
Back for a retest with a different analyser….…PASS.
That’s another morning faffing about I won’t get back……but at least it’s good to know my tailpipe isn’t pumping excess fresh air into the atmosphere.
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