Check Engine Light and Trac off lights are on

Tiny
LEXUSOWNER123
  • MEMBER
  • 2000 LEXUS ES 300
High RPM's at low speeds

Problem comes and goes- Toyota tech said it was knock sensor #2 that was out, I had both replaced- lights went off- 8 days later, they are both back on

What do you think could be the problem and how serious is it?

Monday, October 7th, 2013 AT 5:54 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
I have to be honest, I'm not sure what a knock sensor would do to cause high rpm's at a low speed. Is the transmission shifting properly?
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Monday, October 7th, 2013 AT 8:00 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Another thought. Have you had the computer scanned to determine if it is the same trouble code or perhaps a new one?
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Monday, October 7th, 2013 AT 8:01 PM

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