Question about 2002 Ford Thunderbird
You has two (or more) codes.
You listed P0340 which is Cam crank angle sensor.
This is usually cause by motor running hot beyond 230 F
and the heat damaging the cam angle sensor (CAS)
THE FIX is
replace the damage CAS
Inspect to make sure the fans are operation
Coolant change to 65/50 mix instead of 50/50
If you're living in sub-zero are then check the coolant bottle for the correct mix.
The front O2 sensors is not providing the data to the computer.
The front O2 (before catalytic is taking a lot more un-burn hydrocarbon and it should change before 85,000 miles.
Poor mileage and slow acceleration will occur if you do not replace the O2s.
Please rate my post id it's helpful to you.
Posted on Dec 12, 2009
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Posted on Jan 02, 2017
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Here is the daignostic procedure for troubleshooting DTC P0141 (click over each image for zoom)...
Hope this helps to solve it.
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