It measures intake air temp. Its purpose is for input signals to the hfm/lh/me control unit for fuel trim. Personally, I'd replace it as cat converters aren't cheap.



Joe

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Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.
Raleigh NC
919-881-0364