MG-Cars.net

Welcome to our resource for MG Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGF Technical - MGF oxygen sensor

Just had quote to replace MGF oxygen sensor - due to CO2 reading being excessive on MOT - er... 450 at MG dealer !!**!!

Is it that difficult to unscrew sensor and replace without having new manifold etc... ?

Could there even be anbother cure to the excessive CO2 problem (10 times over !!) ?
Pete Y

>> Is it that difficult to unscrew sensor and replace without having new manifold etc... ? <<

Mike's your man to ask here, but I gather that this job can be very variable - sometimes the sensor simply undoes, on other occassions it can appear to be practically welded in situ... Age is probably a factor here.

>> Could there even be anbother cure to the excessive CO2 problem (10 times over !!) ? <<

Oops! 8o(

Actually the sensor itself may not be at fault. John Thomas found on his car that the sensor cable had frayed against a sharp edge in the engine bay. Check out the archives, the full story is there.

It'd certainly be an easier job to patch a frayed wire than trying to remove a stuborn lambda!
Rob Bell

Hi!

I had the same problem The CO2 readings was 3 time too high. I changed the plugs and the leads + new engine oil and air filter. The most common problem is that the engine does not fire all the gasoline so some gas stands left in the CAT (=lots of white smoke from the exust) . After my changes I drive the car VERY hard for some miles. After that the CO2 reading was ok.

/Magnus
Magnus

This thread was discussed between 19/03/2003 and 20/03/2003

MG MGF Technical index

This thread is from the archive. The Live MG MGF Technical BBS is active now.