dlande Posted September 29, 2007 Share Posted September 29, 2007 I have a 1991 ES250 with 148,000 miles. Recent widow. Thought it idled too fast (850-1000rpm). Spent $100 and still is same. What is the optimum idle rpm? Quote Link to comment Share on other sites More sharing options...
edbro Posted September 29, 2007 Share Posted September 29, 2007 You are asking about an ES250 in the RX300 forums but for the RX, optimum idle is around 750 RPM. Quote Link to comment Share on other sites More sharing options...
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