i have this 2000 chevy malibu ls 3.1
and i got the obd code - p0403 Exhaust Gas Recirculation Circuit Malfunction,,
i have tryed few tricks,,but did not worked,
,i have cleaned the egr,,checked the wires harness,,everything looks ok,,
i took negative wire out for 3,4 hours ,,and still the light is back on again,,
maybe i the egr is not clicking,,opening?
i have a diagnostic tool,,but did not see that future in to turn on/off egr,,