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How do you change the Throttle positioning sensor on a 1990 lumina euro 31 L?
Wiki User
∙ 12y ago
on the top of your motor (looking at it from the front) follow your intake manifold witch should be square large and in plain sight, should say the engine size\manufacture find the throttle body attached to intake look for cables and vacume lines across from them should be a black box looking sensor with a three wire connector and two or three screws possibly locktyte was used in installation careful not to strip them in any case this part is your TPS(throttle position sensor) it has a linkage of some sort that runs either partialy or completely through the plenium most of these sensors are not adjustable but some are i do not believe Chevy has used these adjustable types in some time as it is cost effective to just buy new. hope this helps good luck
Wiki User
∙ 12y ago
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