Having problems with your 1991 Lexus LS 400 ?
Check engine light and trac control are both on
Need to have a code reading done, without that your guess is as good as my, most auto parts will do this for free, or you could go by autozone, get back with us with the code number so we can help you with the trouble code, thanks for using FixYa.We'll be waiting.
Something is wrong but its has no OBDII plug on a vhicle of the age 1991 so its a dealer only job unless you local man has some old type test equipment
Repair Help & Product Troubleshooting for 1991 Lexus LS 400
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.