what makes the engine run rough at 900 rpms
Clean your idle air control valve. If you have never done it, go to youtube and type in "camry idle air control valve cleaning".
Did 01bigjon just answer the question with the word "Wire"??? Wow! Good answer bigjon. I'm thinking vacuum leak.
I have a low idle (400)...put a couple tanks of high octane and one can of Berrymans...now idles @ (600)
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