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> Hard Start when Cold
post Jun 20, 2017 - 6:00 AM
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Jankerfun

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Replaced plugs, wires, cap, rotor. Fresh oil change, shift solenoids (all 3). P0500 code comes on every once in a while...

When I try to start the car after it sits overnight, or for a few days... The car will start, then the rpms will drop down and it will stall---- OR---- The rpms will drop, and it will hover around 300-400 until I give it gas

Once I give it some gas when I start it, the car runs fine, drives around fine, will restart fine... I don't get it!

Timing belt is old, done at 67k miles and it has 139k on it now. Maybe its out of time or getting week I don't know....
 
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post Jun 20, 2017 - 9:51 PM
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Box



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Have you ever cleaned the IACV? Another thing is you could have injectors leaking down and opening up the throttle lets in more air to burn off the excess fuel.


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2001 Miata LS 5-speed

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