[RESOLVED] Check Engine, O2sensor ??

[98mitsubishigst]

Code 135 came up
Oxygen sensor heater malfunction..


Front sensor.. is it upstream or downstream? i dont know difference
and i need to replace it for emissions..


HELP!

or would it be the back o2 sensor?

idn i need help
the diagnostic didnt tell me which sensor it was..

but its for my check engine light to be turned off

 

[Kastigir]

P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

 

[Fotowntalon]

downstream is behind the cat, upstream is before.

 

[98mitsubishigst]

so does bank 1 sensor 1 mean
the one in the exhaust housing?

 

[Dsmj89]

Yes that would be the o2 housing sensor.

 

[98mitsubishigst]

hope its the upstream o2 sensor..

putting it in as we speak


wish me luckk!

need that check engine light off!