Just had the cat MOT tested today,,,,,potential fail due to no water in the bottle,,,,,,,,,
Main worry was the guy said it only just passed the emmissions test,,,,,,,He recons a leak on the exhaust or a faulty lamda ?
He put the probe up the right hand pipe and said it failed,,,,,,,put it up the left hand pipe and it only just passes
Any advise ?
But surely, only just is a pass?? sort the rest out later??
Yes,,,,but I like things to be 100%
do you have pre-cats?
Most cars without pre-cats will be borderline unless the main cat is properly hot. Idling for a little while isn't really enough to get it to light off properly. A quick blast around the block should see the readings come back into line.