Jimynutz Posted October 27, 2016 Share Posted October 27, 2016 (edited) New here thanks for.any feedback in advance. My 96 es300 has 261k miles on it, runs like a champ. Mechanically could not be better. Check engine light code p0121 came up so I replaced the tps. Car ran fine for 5 minutes then quit. Light came back on, I couldn't get a scanner so I searched around the Web and a suggestion I found was to clean the idle air control valve and sure enough it was clogged. Cleaned it up and ran great and died. It'll run for 5 minutes then quit. Wait a little bit then I can start it then quit. I can't take it anywhere because it will leave me stranded. Am I missing something what else can I check Edited October 27, 2016 by Jimynutz Left something out Quote Link to comment Share on other sites More sharing options...
Jimynutz Posted October 27, 2016 Author Share Posted October 27, 2016 No more check engine light but still dies Quote Link to comment Share on other sites More sharing options...
gbhrps Posted October 27, 2016 Share Posted October 27, 2016 Jimynutz, Read this thread on another forum: http://www.clublexus.com/forums/is-1st-gen-2001-2005/527740-help-me-code-p0120-p0121.html Quote Link to comment Share on other sites More sharing options...
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