Got the case of erratic idling well known on the z22se motor.
Removed and cleaned throttle body, still same, sounds like its ticking over on 3 cylinders.
replaced throttle body with 2nd hand unit.. still same.
new air filter,plugs,coil pack.. still same.
codes are p1523 throttle actuator control performance.
p1514 electrical throttle control malfunction.
Diagnostic was performed on 1 st TB.
Is it worth using EGR cheater.
If i replace throttle body do i have to have ECU reset.
Thanks Dave.