weird idle problem
My friends mustang after the install of the throttle body and plenium was way out of wack. The car seems to jump from 400 to 600 after start up. It idles really low and sounds like it is just about to die. But if you give it a little gas and let off the throttle it stays at 2000 rpm for about 30 sec or so, then drops back to idleing funny again. It sounds cool when idleing because it sounds like it could be cammed, but everytime we are at a stop after giving it gas it goes back up to 2000 rpm and it sounds like he is just holding the throttle at 2000. I have checked every thing around the throttle body and plenium and also put the stock one back on but no luck. His odometer also shuts off randomly when he is driving and the speedometer will just go to zero at the same time but every other gauge still works. I have no clue what is wrong with the idle problem or his guages. Any suggestions?
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