The "Service Engine Soon" light keep coming up on my 1998 Intrigue.


I've used a code reader and keep getting codes:


P0135 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)


and


P0141 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)


I've replaced both O2 sensors with new Bosh units from Autozone twice now and am still getting the codes. Any ideas?

I fixed the error. It was a blown fuse in the engine compartment fuse box, not the O2 sensors them self.

Glad to hear it was just a fuse, I would dump those Bosch O2 sensors and get some AC Delco ones, they last ALOT longer.

-ImpalaMan