HELP!!!!!!!!!!
96 GXE AUTO
About 2 month ago my cel went on. that was co2 s1b2 and ks sensors. i chenged co2 only.
then 7 days later cel is on again co2 s1b1 and ks sensors i chenged co2 only.
then 7 days later cel is on again egr system problem,co2 s1b1,ks sensors.
so i chenged all egr sensors.
7 days later cel is on co2 s1b1,ks sensors again. so i chenged co2 again it was on warranty.
7 days later cel is on co2 s1b1 and ks sensor. i told my mechanik just erase the code ,becouse we chenged the same sensor 2 times allredy.
and today cel is on again co2 s1b1 and ks sensor.
i did not chenge ks sensor yeat.
is it becouse my ks sensor is dead,but i replased it about 2 years ago and i have only 12k ml with that sensor.
but why the same co2 s1b1/b1s1/ comes up its brand new,and my mechanic did a test sensor is new.
PLZ HELP.

 

and slow down
1. It's not a C02 sensor, its an 02 sensor.
2. It might be a harness/connector issue. If your mechanic knows what he is doing, he should be able to use a multimeter to check the O2 sensor readings which the car is running.
3. The KS code is showing up because of the O2 sensor problem. Fix that first.

 

he did car runnig 100% he did test on all 02 sensers and mas sensor car is fine, he put my car on diagnostic resolt came up good ,but what about ks, is it becouse of ks maybe,he thinks that i shoud chenge my ks

 

some on told me that is becouse of my spark plugs, i have ngk they 5 year old but i have only 26.000 ml on them