Why does a 1995 Lexus sc400 loses power and knocks off when idling?

Tiny
PAUL DENNIS
  • 1995 LEXUS SC 400
  • 250,000 MILES

When idling at low RPMS, engine loses powwer and frequently knocks off. Runs fine at higher RPMS

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Tuesday, October 25th, 2011 AT 3:55 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER

Clean and test the idle air control valve and also the throttle body-also the TPS and the MAF sensors

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Wednesday, October 26th, 2011 AT 1:25 AM

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