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Discussion Starter · #1 ·
Hi,
My '55 156 2.0 JTS failed it's MOT on high CO.

Fast Idle
CO 0.46
HC 58
Lambda 1.0

Idle passed with CO 0.02

It runs fine, but does sometimes blow smoke under high revs/heavy throttle (only really noticeable at night in the lights of a car behind). Although it only seems blow smoke the first time it is booted, then won't do it for a while until it has been run at 'normal' revs for a while...

The garage suggested it is most likely to be the Cat, are they correct?
Any other suggestions- I guess the Cat will be expensive!

Any suggestions welcome!
 
G

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Big bottle of cataclean?

Followed by Italian tune up and a tank of V Power Nitro+ should have you sorted. That's not far off a pass is it?
 

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My 166 failed its MOT on pretty much the same thing back in March,and though the garage doing the MOT thought it might be the cat,it turned out to be the Lambda sensor that had failed.

The lambda sensor was £75.00,plus £50.00 labour to fit.

Bit cheaper than a Cat !:D
 
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