Again converters

your problem is the walker converters. they do not have enough precious metals in them to do the job. that is why they are cheap and the factory ones are around 800-1000. there is a company called bosal that makes aftermarkets with a warranty that the light will not comes on but they are just about the same price as factory. in this market of converters, you get what you pay for and the consumer is stuck with this nightmare. you may have to pay the difference between what you paid to the real converter but take it up with your shop. we refuse to use anything but oem or bosal. you are from Phila. as am I. there is a parts house called town and Country that can assist you in this. Give them a call. Roy

Toyota O2 sensors are matched to the Toyota converters and unfortunately aftermarket non-OEM converters just can't pull enough CO out to satisfy the Toyota sensors. Sorry, but dealer is probably right. You may want to try salvage yards for used otherwise you are looking at $1040 just for converter.