Spark plug wires, distributor cap & rotor?
A faulty temperature sensor can be the cause as well. Re-check
all your prior work just in case. Have you checked fuel pressure &
flow rate when the problem is occurring?
MAF sensor and Throttle sensor could also be at fault. Check all
ECM power wires & grounds.
Thomas
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Friday, October 26th, 2012 AT 2:49 PM