What is your question?
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What is your question?
Looked on line when I had the idle control vavle off coved the holes with cardbord seemed to help fuel went down to around a 1000 got the car from my sister in law witch never tried to fix it replaced plugs wires checked spark all looked good dnt think it would be a coil
What makes this problem better or worse?
Nothing
How long has your 2003 Hyundai Tiburon had this problem?
Couple years
1 Reply
Hello, Test for vacuum leaks. You may just have a large enough vacuum leak that it is running very lean and spiking. Also, see if someone adjusted the throttle body set screw high (if equipped). A professional scanner can tell you exactly what the engine is doing when it revs itself through the roof.