My DVD has a diagnostic section that lists all the ODB codes. P0200 is the master code and the list gives you the codes that can caused the master code to register giving you the check engine light. I removed the back shell of the Engine Control Module (N3/7) connector and used a multi-meter to read the wiring and arrived with the following readings. The problem is random, with the car operating normally at this time it is hard to say if the slight imperfections would cause the car to stall. Please review the information and give me your input.
P1220 Fuel Quantity Actuator (Y23/1) (Adjustment Solenoid) Voltage was a little low.
Ignition: On, Nominal Value: >4.0 volts for maximum of 30 seconds.
Ignition and connector: Off, Nominal Value: 1.0 + or - 1.4 ohms.
Reading from 36 to 37 was 3.75 volts for 30 seconds. Resistance was 0.7 ohms.
Reading from 54 to 37 was 3.73 volts for 30 seconds. Resistance was 0.7 ohms.
P1222 Accelerator Pedal Position Sensor (R25/2) Voltage was good thru the range of travel.
Ignition: On, Nominal Value at idle: 0.2 + or - 0.5 volts.
Ignition: On, Nominal Value at full load: 3.7 + or - 4.8 volts.
Idle was 0.315 volts.
Full load was 4.41 volts.
P1223 Fuel Rack Position Sensor (Y23/1/1) Resistance was a little high.
Ignition: On, Nominal Value: 2.2 - 2.7 volts.
Reading from 19 to 9 was 2.5 volts.
Reading from 19 to 10 was 2.5 volts.
Ignition and connector: Off, Nominal Value first two test points: 20 - 25 ohms.
Ignition and connector: Off, Nominal Value second two test points: 40 - 50 ohms.
Reading from 46 to 9 was 26.3 ohms.
Reading from 10 to 9 was 46.8 ohms.
P1335 CKP Sensor (L5/6) (Crank Position Sensor) Voltage reading was good.
Engine at idle, Nominal Value: >0.3 volts AC.
Reading from 28 to 20 was 1.20 volts AC.
Revving engine caused the voltage to increase.
Ignition and connector: Off, Nominal Value: 610 - 1300 ohms.
Reading from 28 to 20 was 686 ohms.
I have connected a multi-meter to the Fuel Shut Off actuator connections to see if the voltage (11 - 14) drops off during one of the stalls. If I lose power, I will focus on the Engine Control Module (N3/7). If no power drop, I will focus on the Fuel Quantity Actuator (Y23/1). Thanks, Scott