1991 Lexus LS 400 no power

Avatar
DIREBROTHER
  • MEMBER
  • 1 POST
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
Aug 28, 2010 at 4:39 AM
Avatar
KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 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.
Aug 31, 2010 at 3:39 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle