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Found my problem. The ECM controlled solenoid for the EECS was bad. Did not close with ECM signal. And the outlet hose to the purge canister from the solenoid was cracked. Always had a vacuum leak through the bad solenoid and the bad hose. Hard start when cold, and hesitation and sluggish accel...

Should have mentioned this, exhaust is clear, no white or black smoke, but there is a distinct Fuel smell when it is running rough. Also failed to mention that all the injectors appear to be firing, audible clicks, and that when warmed up the pulses to the injectors all appear the same using a...

89 Coupe. When starting cold, I have to open the throttle to keep the engine running. After warm-up, about 140, runs fine, but does have some hesitation and some sluggish accel. Have checked the EGR, Fuel Pressure 39. replaced the Fuel Filter and metered out the injectors, 16.4+- .1. Car sat...