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Re: Please Help! TCU code 25
Kia ora Paul,
The TCU receives, and is dependant upon, a single signal for torque control from the ECU, Therefore you should also run a check for ECU codes.
The symptoms you describe could very well indicate a faulty TPS (throttle position sensor.) i.e. a faulty area of connection within the conductive plastic resistive element, probably close to the first point of operation. This might only involve a deposit of dirt. Have a look in the how too section regarding, cleaning, setting and testing, but ignore the test board and measurement stuff.
If you have electronic or audio equipment knowledge, I can advise regarding a more definitive TPS test which, is worth trying.
Cheers, Trevor.
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Trevor, New Zealand.
As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! 
Last edited by Trevor; 02-03-2010 at 07:49 PM.
Reason: Extra point added.
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