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Sputters at fast acceleration off of idle customer replaced the EGR valve, Map sensor, plug wires, IAC, TPS, and distributor. And 02 at WOT seemed to react normally. In other tests I did with the scanner, the pids were limited. I monitored the 02 at different RPMs and checked for duty cycle for the IAC, which seemed to react normally; I checked the TPS with the scanner and lap scop. I did see one glitch on the scan for a second, wasn't able to repeat but didn't see a glitch on the scop screen, checked the EGR solenoid and vacuumed. The solenoid usually responded the reason for testing the EGR was due to code. No other code was present. The only reason I didn't do a fuel pressure test is that 02, when rich at WOT, snapped going uphill. Any advice on which direction to go on diagnostics will be appreciated.