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I have a 1993 mazda mx-3 v6 and my engine wont stop revving up and down. it never stays a proper idle its all over the place like 1500 rpm or 1000 rpms. and i cant trust machanics I get a different answer everytime i take it somewhere. Can some please help me in solving this problem!

Please and thank you!!!!

Most likley, you either have a TPS out of adjustment or a vaccume leak.

Search, its been posted hundreds of times.

Go to junkers get the bottom half of the Throttlebody (called the IAC) Unscrew it with the 4 philips heads screws... then put it on ures!
I had the same thing and it was IAC. Cost me about $5

Before you do anything check the plastic pipe from Intake (throttle body) to box, your main air intake. If it is cracked it can cause all kinds of grief. another cheap junk yard part & a common problem.

it could be timing, or letting un-metered air in? is the accordian tube cracked to hell?

Spindlerobin not messing with the grapple grommets.

Thanks boyz greatly appreciated....I love my car first car i ever bought so i dont wanna get rid of it!!!

99% of the time those are the symptoms of a cracked air intake. Check the plastic accordian.

what does the ecu codes say?

Mine does that and its a problem with my throttle body mixed with tps.

Nice call Nightshade

Well what can I say, I had the exact same thing