Question about 1997 Acura CL

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Exhaust emission lambda reading out of range, would this be dew to faulty exhaust sensor,

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Make sure u have no leaks in exhaust

Posted on Jul 21, 2009

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1 Answer

Engine emission light stays on


Probably a lambda sensor faulty! Get the fault codes read to know for sure.

Mar 12, 2017 | Audi A4 Cars & Trucks

1 Answer

The following 2 warnings came up in my mini one 04 reg deterioration in exhaust emission values and fault in engine electronics What could be the problems please


it needs to go on a obd code reader/scan tool or suitable diagnostic equipment to help with this prob. could be lots of things, most likely lambda sensor faulty or catalyst fault. but could be other engine managment system fault like fuel pressure etc

Nov 18, 2016 | Mini Cars & Trucks

1 Answer

What does it mean when it says co


CO? That means Carbon Monoxide - it's a rather toxic and poisonous gas emitted from the exhaust system.

When they check emissions on cars CO is one of the gases they measure. If the level is too high .. your car fails the emissions test. I believe in the USA the emissions test is known as the 'smog test'?

If you have a problem with excess CO emissions on a car the cause is often an incorrect fuel/air mixture or a faulty sensor called the lambda/oxygen sensor in the exhaust system

May 12, 2016 | Cars & Trucks

1 Answer

My 2003 Terios has failed on high emissions.


First thing I would do is this... Get a can of SEA FOAM and add it to your Fuel. Then drive 100 Miles and have it retested. 90% sure it will pass after cleaning the system.

Feb 12, 2014 | Daihatsu Cars & Trucks

1 Answer

Have VW polo 1.4 CL (APQ engine code) registered in 1999 with Fault code 00525. Car difficult to start and when it does cuts out when accelerator is depressed unless left to run for a minute or two. Car...


first make sure you have no close in silence ( catalatic ) exhaust line ) , second make sure the Oxgen sensor is connect (lambda) ,and the timing is ok. intake manufold sensor remove and clean , for catalatic you can loose bolts only to check and accelerate.good luck.

Jul 13, 2011 | Volkswagen Polo Cars & Trucks

1 Answer

What is the function of lambda sond? it's good or bad ?it's about what?


First used in February of 1977 on Volvo B21 four cylinder engines, the Lambda-Sond system was an emissions reduction system which used three key components working together:-


1) Lambda Sensor. An exhaust gas composition sensor to monitor chemical composition of engine exhaust gases; especially NOx (oxides of nitrogen) which feeds data to the engine control system. In simple terms it's an oxygen sensor positioned in the exhaust pipe before the catalytic converter.


2) A feedback loop providing information to the engine control computer that enabled more precise control of the fuel injection system.


3) A catalytic converter.

This system greatly reduced exhaust emissions while allowing much better performance and fuel economy. It proved to be a key to restoring the performance lost by the addition of emission controls on vehicles. It was the forerunner to modern electronic engine management systems that eventually appeared as similar systems on all road-going vehicles.

So it's a very, very, good thing and like all similar systems requires periodic maintenance and repair, usually the parts which fail are the lambda sensor and/or the catalytic converter.

I hope that my speedy and free reply has met your requirements, if so then please take a brief moment to rate my answer.

Oct 07, 2010 | 1984 Volvo 240 Series

1 Answer

Mazda 323f gxi 2,o derv 04 model failed emissons on excessive smoke


Hi, Few things to check here, first i would check the Lambda sensor as this monitors the air fuel mixture and stops the car running too lean or too rich. The most likely option is that the catalytic converter may be at fault the element inside may have broken up over time and therefore is unable to breakdown the exhaust emission into a cleaner release of exhaust fumes resulting in emissions failure. At the very worst you may have worn piston oil rings that would also produce excessive smoke emissions from the exhaust.

Apr 09, 2010 | 2004 Mazda 3

2 Answers

Hi, 2000 Landrover Freelander 1.8 petrol, failed MOT on CO emissi


check both lambda sensors for breaks in wires and for open circuit on heater side of lambda sensor on the one under the car on the second cat,failed heater element will not heat gas engough for sensor to read causing false readings , also check for slow i.a.c valve on inlet manifold.

Sep 26, 2009 | 2002 Land Rover Freelander

1 Answer

The emissions warning light is on


sounds like a faulty air mass metre or lambda sensor throtle position sensor depending on which year or model id get its fault code read

Jul 08, 2009 | BMW 318 Cars & Trucks

1 Answer

Exhaust emissions


clogged catalytic converter

Jun 05, 2009 | 2002 Volkswagen GTI

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