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Chris (aka-Moose)
Chris (aka-Moose), Auto Technician
Category: Toyota
Satisfied Customers: 947
Experience:  16 years of experience
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2001 Rav4, 107,000 miles. check engine light on, code came

Customer Question

2001 Rav4, 107,000 miles. check engine light on, code came up P-1155. Have so far replaced all 4 sensors, and the pass side upstream one twice. Went to Toyota dealer shop and they really couldn't pinpoint any problem. The check eng light seems to be intermittent. I'm out of ideas---it has to pass emissions test (Tenn_)to get a tag. Unless you have something pretty sure to help, I'm not interested in paying for a guess.
Submitted: 1 year ago.
Category: Toyota
Expert:  Genchi Genbutsu replied 1 year ago.

Thank you for allowing me to help you with this concern today and am sorry to hear that this is happening. I will have to ask you a few questions so that I can get a better understanding as to what may be going on with your Rav4.

Did you install OEM Toyota Sensors from the Dealer or where they aftermarket ones?