trouble code 45, TPS

1991 PONTIAC FIREBIRD
142,000 MILES • 3.1L • V6 • 2WD • AUTOMATIC
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SDANDERSON5150
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  • 6 POSTS
trouble code 45, and with the TPS. The book says the tang should be inline with throttle actuator. I do not have any of that on the TPS side, is it possible missing?
Jan 11, 2018 at 11:30 PM
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CARADIODOC
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45 - Oxygen sensor rich exhaust.

You are reading about a throttle position sensor for an older engine with a carburetor. The 1991 does not have a tang. It has the same center hold with two tabs that Chrysler and Ford use. It is spring-loaded to go to its lowest setting, and you just pop it on when the throttle blade is closed.
Jan 12, 2018 at 6:49 PM
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SDANDERSON5150
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Okay, thanks must be a misprint. because it shows a picture of a 3.1 MPFI throttle intake. much appreciated.
Jan 12, 2018 at 7:20 PM