Is lambda sensor an MOT failure?
Apart from a check, a faulty lambda sensor is often flagged up during an MOT test. It could save your car from failing an MOT, and bring your car’s fuel consumption down.
Is the MOT emissions too high with the new sensor?
MOT failed lambda emissions too high even with new sensor! I’m currently having emissions problems with the MOT, it’s passing the actual emissions test fine however the lambda reading it still high. Today they fitted a new Bosch pre CAT lambda but it’s made no difference.
What to do if Mot failed Lambda emissions too high?
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What are the changes to the MOT test?
Some of the biggest MOT test changes were made to the emissions portion of the test, with stricter rules in place to penalise cars which don’t meet the emissions criteria. Diesel car drivers have felt the impact of the new MOT emissions rules more than most, with legislation in place to reduce harmful emissions from this type of engine.
What are the symptoms of a faulty lambda sensor?
Symptoms are often as follows: Often a faulty lambda sensor will be found during an exhaust emissions test. If the emissions are too high, it is often due to too much fuel being burned in the engine.
MOT failed lambda emissions too high even with new sensor! I’m currently having emissions problems with the MOT, it’s passing the actual emissions test fine however the lambda reading it still high. Today they fitted a new Bosch pre CAT lambda but it’s made no difference.
Once signed in, you’ll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox! MOT failed lambda emissions too high even with new sensor!
What does a lambda sensor on a car do?
A Lambda sensor measures the amount of unburned oxygen in a vehicle’s fuel exhaust. If the oxygen level is too high or too low, the Lambda sensor sends a signal back to the vehicle’s computer that tells it to adjust the air/fuel mixture so that the vehicle can perform optimally and within emission control
Why does the Check Engine light come on on my Lambda?
The “Check Engine” light may come on. A vehicle owner will have to have a reputable technician check the code. A cold engine with a faulty Lambda sensor that has unburned oxygen in the catalytic converter may emit a “rotten egg” smell. A malfunctioning Lambda sensor may send an erroneous signal that the air/fuel mixture is too rich.