Scanmaster code 21??
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Joined: Mar 2004
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Scanmaster code 21??
My scanmaster is reading code 21 under the dtc mode. The car seems to be missing on high speeds. The code is for TPS sensor high. Does anyone know if I might need a new tps sensor?
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Joined: Nov 1998
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From: Hell was full so they sent me to NJ
Re: Scanmaster code 21??
Turn the key on, set the ScanMaster to read the TPS voltage. What is the "throttle closed" voltage? Put your foot on the floot - what is the WOT voltage? When you slowly move the throttle from closed to wide open, does the voltage increase steadilly, with no spikes or flat spots?
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