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[VX1]

Does anyone know how a Lambda probe and Cat works? And when they should be replaced (Lambda probe) and what to look out for to know when the cat(s) are going?

Paul  

[markey mark]

Does anyone know how a Lambda probe and Cat works? And when they should be replaced (Lambda probe) and what to look out for to know when the cat(s) are going?

Paul  

cats filter all the harmfull gasses in exhaust fumes and the lamdas check the mixture to keep it running sweet !! when your cats are gone they will rattle break up and block up your exhaust !! perfeormance will drop also !!

[VX1]

Does anyone know how a Lambda probe and Cat works? And when they should be replaced (Lambda probe) and what to look out for to know when the cat(s) are going?

Paul  

cats filter all the harmfull gasses in exhaust fumes and the lamdas check the mixture to keep it running sweet !! when your cats are gone they will rattle break up and block up your exhaust !! perfeormance will drop also !!

Correct thats the basic workings of it, BUT do you know WHY the cats break up and how?
 
Paul  

[markey mark]

Does anyone know how a Lambda probe and Cat works? And when they should be replaced (Lambda probe) and what to look out for to know when the cat(s) are going?

Paul  

cats filter all the harmfull gasses in exhaust fumes and the lamdas check the mixture to keep it running sweet !! when your cats are gone they will rattle break up and block up your exhaust !! perfeormance will drop also !!

Correct thats the basic workings of it, BUT do you know WHY the cats break up and how?
 
Paul  

tends to be from contamination from oil wrong type of fuel unburnt fuel from jump starting towing off large impact can break them up !!

[VX1]

You been looking this up markey mark? Yet again Correct.

What about the lambda's then how do they work and when should they bee changed?

Paul  

[Vamps]

Could this cause missfiring? on a 4 pot.

[VX1]

Could this cause missfiring? on a 4 pot.

Yes. But also check your ignition system as well. Check the leads, and check if there is any oil in the plug wells as well.

Paul  

[Vamps]

Could this cause missfiring? on a 4 pot.

Yes. But also check your ignition system as well. Check the leads, and check if there is any oil in the plug wells as well.

Paul  

Yes, done that, new gasket, plugs and leads. Have a new dis thing to fit when itgets warmer, just exhaust makes a funny rattle and wondered if there might be a connection. No eml light, new cam and crank sensor.

[markey mark]

You been looking this up markey mark? Yet again Correct.

What about the lambda's then how do they work and when should they bee changed?

Paul  

no paul im a car mechanic bud !! a good bit smarter than your average spanner man !!!

as for changing lambdas i wouldnt until they were faulty ! as long as you get them very hot they will last a very long time they tend to break after contamination  

[VX1]

You been looking this up markey mark? Yet again Correct.

What about the lambda's then how do they work and when should they bee changed?

Paul  

no paul im a car mechanic bud !! a good bit smarter than your average spanner man !!!

as for changing lambdas i wouldnt until they were faulty ! as long as you get them very hot they will last a very long time they tend to break after contamination  

Our servey say's..........X (family fortunes sound)

The lambda probes (sensor) should be checked for efficiency so that they are working correctly. Suggested check 30,000 miles approx. Replaced between 60,000 and 70,000 miles,(I will check this) as the sensor looses efficiency over time. This is due to wear and tear, nothing can prevent this of course. If the car has done 100,000 miles plus since the last change of the sensor it is recommended to replace as the emmisions will be through the roof not necesseraly the cat. The cat could be in perfect working order BUT the cat could play apart in this sudden increase in high exhaust emissions. I do believe this is right but clarification tomorrow will determin this.

Paul  

[markey mark]

You been looking this up markey mark? Yet again Correct.

What about the lambda's then how do they work and when should they bee changed?

Paul  

no paul im a car mechanic bud !! a good bit smarter than your average spanner man !!!

as for changing lambdas i wouldnt until they were faulty ! as long as you get them very hot they will last a very long time they tend to break after contamination  

Our servey say's..........X (family fortunes sound)

The lambda probes (sensor) should be checked for efficiency so that they are working correctly. Suggested check 30,000 miles approx. Replaced between 60,000 and 70,000 miles,(I will check this) as the sensor looses efficiency over time. This is due to wear and tear, nothing can prevent this of course. If the car has done 100,000 miles plus since the last change of the sensor it is recommended to replace as the emmisions will be through the roof not necesseraly the cat. The cat could be in perfect working order BUT the cat could play apart in this sudden increase in high exhaust emissions. I do believe this is right but clarification tomorrow will determin this.

Paul  

i would disagree paul only ever had to change one !! if a car passes its mot emmisions test then the lambda is doing its job ! im of the old school mate will not change things untill they go wrong except cam belts and tensioners !!

[VX1]

You been looking this up markey mark? Yet again Correct.

What about the lambda's then how do they work and when should they bee changed?

Paul  

no paul im a car mechanic bud !! a good bit smarter than your average spanner man !!!

as for changing lambdas i wouldnt until they were faulty ! as long as you get them very hot they will last a very long time they tend to break after contamination  

Our servey say's..........X (family fortunes sound)

The lambda probes (sensor) should be checked for efficiency so that they are working correctly. Suggested check 30,000 miles approx. Replaced between 60,000 and 70,000 miles,(I will check this) as the sensor looses efficiency over time. This is due to wear and tear, nothing can prevent this of course. If the car has done 100,000 miles plus since the last change of the sensor it is recommended to replace as the emmisions will be through the roof not necesseraly the cat. The cat could be in perfect working order BUT the cat could play apart in this sudden increase in high exhaust emissions. I do believe this is right but clarification tomorrow will determin this.

Paul  

i would disagree paul only ever had to change one !! if a car passes its mot emmisions test then the lambda is doing its job ! im of the old school mate will not change things untill they go wrong except cam belts and tensioners !!

Fair comment. I am with you on this one, if it don't need replacing don't replace it. Its just what I have been told when I went on the course through my company, the course was for "ENGINE MANAGEMENT AND DIESEL INJECTION" As I have been on the course I am now the 'EMS expert'. I sat there for the whole day and listened to people give presentations on the EM, Injector's, Lambda's, AFS etc to do with engine management. (terribly sorry old boy, I am a little tired)

As said though I am a bit old school as well. Top marks anyway MM you have completed your exam  

Paul  

[markey mark]

cheers paul ! quite a while since i had to use my brain like that ! been working as a mechanical fitter on steelworks for last 8 years !! just do cars at home on the side now !!

[VX1]

cheers paul ! quite a while since i had to use my brain like that ! been working as a mechanical fitter on steelworks for last 8 years !! just do cars at home on the side now !!

Glad to be of some help to you then MM. Still got the brain power to answer some of the questions of your past life  
Same here, but the annoying thing is, is when someone ask's you to do a job for them which should only take a weekend to do ends up taking 8 months because they cant be a55ed to get there a55 into gear and get the parts for you or drop the money of to you either, Like I have got, the guy that wants me to do his 2.2 omega (oil cooler) I have had his car here at home for the past 8 months not doing anything so still waiting for the money to get the parts. Once I have done the job for him he will need to pay me extra money for the storage of his car as well.

Paul  

[markey mark]

cheers paul ! quite a while since i had to use my brain like that ! been working as a mechanical fitter on steelworks for last 8 years !! just do cars at home on the side now !!

Glad to be of some help to you then MM. Still got the brain power to answer some of the questions of your past life  

yea i scare myself sometimes !! only hope it stays there for a good long time paul !!