04-09-2012, 06:06 PM
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#11 |
 Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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When he throttle is closed... guess what... it's supposed to be CLOSED. Quit dicking with things you have no idea about just because you think it might be a good idea and go buy a service manual. The idle is controlled via a computed controlled valve which bypasses the throttle body altogether. Your code 51 indicates a possible problem with the switch that's built into the TPS to tell the ECU when the throttle is closed.
Look in the MKIII FAQ section for a thread on diagnostic codes for a list and descriptions of the various codes.
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