how do i troubleshoot dtc 41

1993 LEXUS LS 400
320,000 MILES
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MIKEMECHANICRR
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  • 1 POST
tune up parts look like new. fuel pump and filter are new. both tps units are new. car acts up after approx 1 hour,and only when its raining.i keep coming up with code 41.i did the lexus method of tps adjustment.
Feb 28, 2012 at 6:53 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Sounds like you have to check the TPS wiring back to the computer for short and open circuit-if okay -have the computer further checked-
Feb 28, 2012 at 8:02 PM
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