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rpm surging at idle


1swtbrz
08-08-2005, 05:19 PM
i cant seem to figure this one out. the rpm's bounce around at idle from 500 to 1200 rpm. this is an intermittent issue and i cant seem to find a pattern. also the car will die every now and then when i slow down kinda fast. any idea what causes this?

theFREAKnasty82
08-09-2005, 12:17 AM
I'd say you're loosing pressure in your fuel system, that's why you have the surging idle and the stalling under hard braking. Have your pressure checked to see if it is at least 40 lb. psi. Possible causes, a weak fuel pressure regulator, leaking injector, kink in your line(s), etc.

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