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Re: 1998 Corolla CE My engine check light went on

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Guest
Anonymous Poster

Feb 29, 2008, 9:36 AM

Post #1 of 2 (956 views)
Re: 1998 Corolla CE My engine check light went on Sign In
In Reply To
belle 1998 Corolla CE My engine check light went on. I checked all fluids, and checked for overheating. The car appears to operate fine. I heard that auto parts stores will hook up a diagnostic tool to find out the error code etc. Most do so for free- when it appears dealers are charging a min $50 for the same 2 min process. It reads: PO136, 02 Sensor malfunction, Bank 1 Sensor 2. My question: I understand there are 2 sensors on this model. Is this the one before or after the cat. converter??? Please advise- Thanks!


Double J
Veteran / Moderator
Double J profile image

Feb 29, 2008, 12:46 PM

Post #2 of 2 (952 views)
Re: 1998 Corolla CE My engine check light went on Sign In
Here is the info you requested...

^ Bank 1 (B1) refers to the bank that includes cylinder No. 1. ^ Bank 2 (B2) refers to the bank opposite bank 1. ^ Sensor 1 (S1) refers to the sensor that is located before the catalytic converters. ^ Sensor 2 (S2) refers to the sensor that is located after the catalytic converters.






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