P1155 code on 2003 rav 4

LFURST39

MEMBER
2003 TOYOTA RAV4
4 CYL
4WD
AUTOMATIC
99,421 MILES

I have a 2003 toyota rav 4 and have replace 3 sensors. The 2 lower downstreams and upper left side upstream and I still get the code p1155 bank 1 sensor 2. Any ideas how to fix the problem I used bosch for the upstream and densco for the downstreams. Could it be the brand bosch that is not working.

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,740 POSTS

The brand shouldn't matter. Check to make sure the wiring and plug to the sensor is in good condition. They get damaged, corroded, and I've seen them melt from exhaust heat.

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Monday, March 7th, 2011 AT 4:39 PM