1991 LEXUS LS 400 NO POWER

  • Tiny
  • direbrother
  • 1991 Lexus LS 400

Engine Performance problem
1991 Lexus LS 400 V8 Two Wheel Drive Automatic 184k miles

Starts, idles NP When to take off no power, shudders a little but drives. After 10 min of driving Converters red hot. Replaced pass side was golwing same problem. Checking ignition coils passed, has no codes no Mil light. I thought it was just a clogged converter but looked at old converter, not clogged at all will keep doing tests

Saturday, August 28th, 2010 AT 11:39 AM

1 Answer

  • Tiny
  • KHLow2008
  • Expert
  • 41,976 posts

Hi direbrother,

The catalytic converter glowing red hot is an indication of misfiring resulting in excssive fuel getting to the converter.

Check the spark plugs and fuel injectors.

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Tuesday, August 31st, 2010 AT 10:39 AM

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