lambda sensor worth changing?

[Gez08]

Hi just wondered if its worth changin the lambda sensor/s on my 172 cup as part of a service. I know they say if it aint broke dont fix it, but my car isnt the smoothest on warm up..are they easy to replace?

 

[Icarus]

Put a meter on them and check if the time to start producing a reading and swing rate is within spec.

If it is don't change them.

Cheers
M

 

[GazM]

1*2's are notoriously bad on start-up, is the car new to you? Remap sorted the problem for me. Unless u know the sensors broke leave it imo

 

[phantomx0_1]

Can think of better things to spend £90 if it aint knackard!!

 

[Gez08]

Nah ive had it a while n its been pretty reliable on the whole, just from cold its not the smoothest n wants 2 hold back at times.

 

[caister]

A sign of a buggered lambda sensor is rubbish fuel ecconomy.

 

[msisleman]

A sign of a buggered lambda sensor is rubbish fuel ecconomy.

Indeed, and emissions usually go through the roof at mot time. Uses the open loop fueling maps and never goes closed loop when the sensors broken.