I have a 2000 w900l , was driving great until 3 days ago , start missing or having problems with the throttle pedal, lost speed while driving down the road and know cruise won’t work, the pedal only works for 5 minutes and start loosing connection or something, I replace the pedal sensor, and nothing changes, also replace the speed sensor on the transmission, nothing change either, I swap the ecm for another good ecm , same problem, ie reading a couple codes , 343 and something else I forgot, but also check my grounds and they all seem to be good, not sure what else to check at this point, please anybody help .
Throttle pedal not working
Discussion in 'Kenworth Forum' started by Tico1279, Feb 6, 2021.
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You changed just the tps? your supposed to replace the whole pedal. I know its expensive but i had problems with my 2002 pete like that and the dam thing wasnt even responding. sometimes it would but it was a super delayed reaction. Pedal was 900 bucks from pete. I used the part number and found brand new same brand pete was selling on ebay for 200 bucks brand new in box. Plugged it in and codes went away and off i went. OR is it different for kenworth. The pedal assembly?
Vampire Thanks this. -
Check your boost sensor, probably making a bad connection.
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Sorry I’m thinking you have cat!!! Boost sensor behind air compressor.
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n14? would help to know the other codes.
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Do you drive for Prime? If so this is normal.
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