1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

throttle position sensor question

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Old Feb 28, 2004 | 09:51 AM
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Default throttle position sensor question

can a defective tps effect my fuel economy and can it effect my rpm gauge .or does it have nothing too do with both please help thanks.
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Old Feb 28, 2004 | 10:17 AM
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It can make your car run rich if it is reading artifically high.
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Old Feb 28, 2004 | 12:48 PM
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But your O2 sensor would have to be 'tired' at the same time. They work together, but the O2 should catch it. I'd bet your O2 first, especially if you have no fault codes.
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