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Lambda sensor Q MOT failyer :0(

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Old 05-14-10, 10:27 AM
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Rusky40
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Default Lambda sensor Q MOT failyer :0(

would a induction kit mess with the Lambda sensor reading as my baby just failed MOT on the exhaust emissions lambda reading
Old 05-14-10, 10:58 AM
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is the cel on?
Old 05-14-10, 12:32 PM
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sorry you lost me cel!!?
Old 05-14-10, 12:45 PM
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check engine light...
Old 05-14-10, 01:13 PM
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no lights on dash at all all is good could the induction kit be messing with the air mixtures
Old 05-14-10, 08:46 PM
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not understanding if u dont have any problems then what is ur concern
Old 05-15-10, 07:49 AM
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Am I understanding this right?

You failed European emission test.
Your check engine light is not on.

Your question is if your forced induction kit is messing with your O2/Lambda sensor?

The answer is no, not likely.

First of all, you need to pull codes, sometimes you will have a code but CEL will not trigger. Also, you need to tell us why you failed emissions. I don't know about the European MOT test, but in the US if you fail, they tell you why, whether it is too much CO2, NOX, etc.

Also, you need to tell us the year of your car, and your engine setup.
Old 05-15-10, 03:48 PM
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Originally Posted by Och
Am I understanding this right?

You failed European emission test.
Your check engine light is not on.

Your question is if your forced induction kit is messing with your O2/Lambda sensor?

The answer is no, not likely.

First of all, you need to pull codes, sometimes you will have a code but CEL will not trigger. Also, you need to tell us why you failed emissions. I don't know about the European MOT test, but in the US if you fail, they tell you why, whether it is too much CO2, NOX, etc.

Also, you need to tell us the year of your car, and your engine setup.
not "forced induction kit" just an "induction kit" which makes me think he just had someone install a short ram or cold-air intake.
Old 05-16-10, 10:12 AM
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Yeee you got it bang on och co2 fine other gas reading fine it says on failier paper exhaust emisions lambder reading after 2nd fast idle outside spec limits but test guy sagas reading all good lambder sensor not good so your guess is as good as mine O car is a 96 4.0 quad cam (pos denso cams fitted) 32 vaulve

Last edited by Rusky40; 05-16-10 at 10:19 AM.
Old 05-16-10, 10:20 AM
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spot on pure drifter a basic big cold air filter instead of air box
Old 05-16-10, 12:33 PM
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Och
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I don't really understand everything you're trying to describe. If your emissions are OK, but you still fail because your lambda/o2 sensor is out of range, then just have the sensor(s) replaced.

Is it the primary sensors, or the secondary?
Old 05-16-10, 12:55 PM
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pass please explain would adjustable exhaust baffles that are close right up to stop boomy 4" back boxes mess with the reading

Last edited by Rusky40; 05-16-10 at 01:54 PM.
Old 05-16-10, 02:21 PM
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You lost me....
Old 05-16-10, 03:09 PM
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please, speak english.
Old 05-16-10, 03:27 PM
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Is it the primary sensors, or the secondary? im not sure which 1 didnt know there were 2 then i said if a car (my car had a pair of 4" back mufflers that were really loud and a pair of adjustable baffles were fitted th closed up a fare bit to reduce the volume of the exhaust not and also altering the speed of which the gases are released i.e adding back pressure would that make the lambder sensors give strange readings


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