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1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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Welcome to Allpar. There is a TSB 18-066-16A to improve Os sensor response, general driveability and shift quality.
PCM updates are covered under an 8/80 extended Federal emissions warranty, if you are still under that.
I would want to make sure that the PCM/TCM is running the latest and greatest software first before investigating other things:

https://static.oemdtc.com/TSB/18-066-16A.pdf
 
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Discussion Starter · #3 ·
Welcome to Allpar. There is a TSB 18-066-16A to improve Os sensor response, general driveability and shift quality.
PCM updates are covered under an 8/80 extended Federal emissions warranty, if you are still under that.
I would want to make sure that the PCM/TCM is running the latest and greatest software first before investigating other things:

https://static.oemdtc.com/TSB/18-066-16A.pdf
Thank you it's not under that warranty any more it has about 100k on it
 

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Any codes?
- make sure your exhaust isnt leaking esp between Engine and end of cats were the last o2 sensors are placed.
 
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