1990 Toyota 4Runner Code51

1990 TOYOTA 4RUNNER
178,528 MILES • 3.0L • V6 • 4WD • AUTOMATIC
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4RUNNER4X4
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  • 1 POST
I got a code 51 on my CEL. How do I fix that problem? Also my Trans work in park-reverse-neutral but when I put it in drive-2-Low my Trans feels like it's slipping plus my Trans shifter is loose.

I also replaced the TSP. The oil is fine with no leaks and doesn't smell burnt.
May 28, 2014 at 4:53 PM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
A code 51 can be a throttle position sensor or neutral switch. Is the vehicle running normally other than the trans slipping?
May 28, 2014 at 6:20 PM
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