I have a 1996 Mazda Protege, 1.5L, MT 190,000mi.
I cannot get the I/M's for O2, Catalyst, EGR and EVAP to set to READY after resetting DTC codes. I have driven the vehicle for as much as 6 weeks and they still have not set. I downloaded Mazda Drive Cycle instructions and these drive routines still have not set the I/M's.
No DTC's are currently present and the ones originally set were self induced by me disconnecting vacuum hoses/sensors while troubleshooting an idling problem. The ECU never set a DTC through normal operation even though the car would occasionally rough idle or die at stop lights.
BTW, the idling was fixed by new valve cover gasket (leaking oil onto plugs), new plugs, rotor, distributor cap and spark plug wires. The car runs super.
I just cannot get I/M's to set READY to pass state inspection.
ANYBODY have a clue? Can the ECU be bad? Can sensors be defective enough to not trigger a DTC but not allow the ECU to reset I/M's to ready?
Help!
I cannot get the I/M's for O2, Catalyst, EGR and EVAP to set to READY after resetting DTC codes. I have driven the vehicle for as much as 6 weeks and they still have not set. I downloaded Mazda Drive Cycle instructions and these drive routines still have not set the I/M's.
No DTC's are currently present and the ones originally set were self induced by me disconnecting vacuum hoses/sensors while troubleshooting an idling problem. The ECU never set a DTC through normal operation even though the car would occasionally rough idle or die at stop lights.
BTW, the idling was fixed by new valve cover gasket (leaking oil onto plugs), new plugs, rotor, distributor cap and spark plug wires. The car runs super.
I just cannot get I/M's to set READY to pass state inspection.
ANYBODY have a clue? Can the ECU be bad? Can sensors be defective enough to not trigger a DTC but not allow the ECU to reset I/M's to ready?
Help!
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