Cat Efficiency Below Threshhold Bank 1

[Guest jon69]

anti pollution fault came up on the way back from france .

got hold of a scanner came up with two faults faulty sensor 2 (sorted new post cat sensor)

second is catalyst efficiency below threshold (bank 1) fitted new cat still get fault up

car done 45k new cambelt etc any body got iedeas thanks jon69

:rolleyes:

[harry bozing]

anti pollution fault came up on the way back from france .

got hold of a scanner came up with two faults faulty sensor 2 (sorted new post cat sensor)

second is catalyst efficiency below threshold (bank 1) fitted new cat still get fault up

car done 45k new cambelt etc any body got iedeas thanks jon69

:rolleyes:

 

I have a v6 3.0 which has the same thing appearing, it has done this for the last 2 1/2 years ,mine goes away on it's own for months at a time and suddenly reappears, it has never failed an mot on emissions so I just live with it as being one of Citroens electrical charms !!,personally I will leave mine alone until the mot dictates that something should be done. Regards, Brian.

[Guest jon69]

have noticed that secondary air injection pump dosnt seem to work

so i took it off and wired directly and it works -checked voltage from main wiring loom got 12volts

then made a connection from loom to pump nothing ? is there a relay some where or is the connecting block faulty any ideas

:rolleyes: