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109 relay or throttle pot ?

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2.9K views 7 replies 4 participants last post by  dossbag  
#1 ·
Hi all . Just got a fault code 00777 accelerator position sensor G79 27-10 implausible signal intermittent . Searched google about throtte pos sensor and a few threads seem to say it may be the 109 relay . vans running v poor at the mo , keeps going limp , missing when going along , hunting , all manner of sins . Would a dodgy 109 cause this or would it indeed be the throtte pot ?:*
 
#6 ·
Problem sorted !! Changed the throttle pot for the one in my wifes golf , no joy . So I traced the wires back to the ECU to check continuity on each one and found that the loom going across the engine bay was just touching the turbo/exhaust manifold and although the wrapping was undamaged , I guess it getting nice and hot would throw the readings to the ECU showing up as impausible signal . Rerouted the loom and went for a drive . Bingo , not a misfire at all . Fingers crossed all will be well . Thanks for your help again T: