help me fix my 1994 Toyota's standard pick-up 22R engine, please?
my problem is under normal conditions my motor when sitting at a light the RPMs will go up to 1500 and down to 1000 and then back up and then back down all by itself. it'll keep doing it, BUT at other times it'll be just fine. can anybody help me to figure out the problem on why the engine would rev up and down.
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