hi
i was in a shop last week to check my o2 and Maf sensors because of high gas consumption , using GT1 .
anyway the maf reading was normal , but all 4 o2 sensors post and pre cat, gave a constant 0.4v even if u rev the car the readings dont change , which is not normal .
i want to change them but how can i know its not the ECU or grounding of the sensor because all 4 of them give the same reading , is that odd ???
and i know there is a way to test the votage directly at the sensor but the question is why the 4 of them give the same reading ????
by the way the shop re-programmed my DME ( re-flashed) and its still constant
and if there was wrong with wiring,dme it should register (close-loop) instead of const. reading
finally could these be caused by connecting bank 1 connector to sensor 2 and vise versa ?
i was in a shop last week to check my o2 and Maf sensors because of high gas consumption , using GT1 .
anyway the maf reading was normal , but all 4 o2 sensors post and pre cat, gave a constant 0.4v even if u rev the car the readings dont change , which is not normal .
i want to change them but how can i know its not the ECU or grounding of the sensor because all 4 of them give the same reading , is that odd ???
and i know there is a way to test the votage directly at the sensor but the question is why the 4 of them give the same reading ????
by the way the shop re-programmed my DME ( re-flashed) and its still constant
and if there was wrong with wiring,dme it should register (close-loop) instead of const. reading
finally could these be caused by connecting bank 1 connector to sensor 2 and vise versa ?