LTFT -100.

[ray selley]

morning all

my 2011 1.2 clio missfires slightly when cold also has a little engine knocking only when cold.
my LTFT is -100 constantly.
my b1 s2 post cat has a voltage of 0.080 to 0.125. even when warm.
I've changed coil pack, leads, plugs and pre cat 02 sensor.
any ideas
Thanks Ray

 

[ray selley]

I forgot to had also had the check injection light come on. but went off again. there is no fault codes other than" oil level sensor"

 

[ray selley]

STFT b1-s2 -100 constantly.
not LTFT .
sorry my error from first post.

 

[ray selley]

are both 02 sensors the same pre and post.
would the post 02 sensor course my stft to be -100.
only have hesatation for about a mile or too.
but its always -100.

thanks ray

 

[ray selley]

I have ran live data with car not running.
and my stft b1-s2 is still reading -100.
I've checked post 02 sensor heater wires. iam getting a reading.