WIthout the check engine, it becomes a guessing game. If vacuum is good and fuel pressure is good, I feel it deals with either a idle air control valve, throttle position sensor, or even the EGR. My other concern is the converter missing. The O2 sensor can't work properly without it. However, I assusme it ran good before the problem started. Have you checked the egr to see if it is carboned?
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Monday, February 15th, 2010 AT 9:43 PM