Guys , please give me you option,
mk2 1.2 8V
Im using a hell of a lot of fuel, had a look at the codes and the following are reported.

P0170 mixture strength
P0135 O2 sensor (6)
P0141 O2 sensor (12)

Would you agree that both Lambda sensors have given up ???

Thanks in advance

Clear the codes, run the car until the EML light comes on, re-read immediately. Deal with the first code.

Note that both the O2 sensor codes point to the heater circuit which is sometimes implicated in P0170.

Cheers fingers

Done that and the first code is the P0170 followed by the other two and yes for the two sensors it give the heaters as the problem. Do you think i should change them ??

I think you should look at the circuit before you swap the sensors.

For P0170 possible causes are (yes, I Googled for it):
- Intake air leaks
- Faulty front heated oxygen sensor
- Ignition misfiring
- Faulty fuel injectors
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel

So there's a lot to check out before you start replacing anything. Plus which, the chance of 2 lambdas going down at the same time for the same fault (if not wiring connected!) must be pretty remote.

Fingers

Thanks for you help.
After testing all the wiring with my tester back to the ECU all was ok.
so i took the plunge and brought 2 new original Lambda sensors and now the car is like new.

Thanks again