ECU continues to flash MOP code
 

I disconnected the MOP to help diagnose some *excessive* blue smoke on startup but with it re-connected and codes cleared it still flashes 40 and goes into limp home mode.

I would actually be happy to just leave it disconnected. Is there a way to do this without the ECU going into limp home? If not, any guesses on why it isn't seeing the reconnection?

Thanks,
Alex

a little help here?

What did you do to disconnect it? To reset the ECU, disconnect battery and press the brakes for 30 seconds. Then reconnect. See if that helps.
~Tom

code 40 = Purge control Solenoid open or short circuit

oops, fixed code 40, 26 is the MOP code I'm getting, it was too late at night when I wrote that message.

I've cleared the ECU a couple times with the procedure mentioned, code 40 is gone but code 26 keeps coming back. I just unplugged the MOP to disconnect it.

Thanks,
Alex

Code 26 explains the blue smoke.

Keep this ECU code list for reference:
-------------------------------------------------------------

02 SS Crank angle sensor no NE signal Yes

03 SSS Crank angle sensor no G signal Yes

05 SSSSS Knock sensor open or short circuit Yes

06 SSSSSS Speedometer sensor Yes

09 SSSSSSSSS Water Thermosensor open or short circuit Yes

11 L S Intake Air Thermosensoropen or short circuit Yes

12 L SS Full Range Throttle sensor open or short circuit Yes

13 L SSS Pressure Sensor open or short circuit Yes

14 L SSSS Atmospheric pressure sensor (in ECU)open or short circuit Yes

15 L SSSSS Oxygen Sensor less than .55v for more than 120 sec in feedback mode Yes

16 L SSSSSS EGR Switch open or short circuit Yes

17 L SSSSSSS Feedback System No change for 25 sec in feedback mode Yes

18 L SSSSSSSS Narrow Range Throttle Sensor open or short circuit Yes

20 LL Metering Oil Pump Position Sensor open or short circuit Yes

23 LL SSS Fuel Thermosensor open or short circuit Yes

25 LL SSSSS Pressure Regulator Control Solenoid open or short circuit No

26 LL SSSSSS Metering Oil Pump Stepping Motor
open or short circuit No

27 LL SSSSSSS Metering Oil Pump Sensor open or short circuit or MOP sticking Yes

28 LL SSSSSSSS EGR Solenoid open or short circuit No

30 LLL Split Air Bypass Solenoid open or short circuit No

31 LLL S Releif 1 Solenoid open or short circuit No

32 LLL SS Switching Solenoid open or short circuit No

33 LLL SSS Port Air Bypass Solenoid open or short circuit No

34 LLL SSSS Idle Speed Control Solenoid open or short circuit No

37 LLL SSSSSSS Metering Oil Pump low battery voltage Yes

38 LLL SSSSSSSS Accelerated Warmup System Solenoid open or short circuit No

39 LLL SSSSSSSSS Releif 2 Solenoid open or short circuit No

40 LLLL Purge control Solenoid open or short circuit No

42 LLLL SS Turbo Precontrol Solenoid open or short circuit No

43 LLLL SSS Wastegate control Solenoid open or short circuit No

44 LLLL SSSS Turbo control Solenoid open or short circuit No

45 LLLL SSSSS Charge control Solenoid open or short circuit No

46 LLLL SSSSSS Charge Releif Solenoid open or short circuit No

50 LLLLL Double Throttle control Solenoid open or short circuit No

51 LLLLL S Fuel Pump Relay open or short circuit No

54 LLLLL SSSS Air Pump Relay open or short circuit No

71 LLLLLLL S Front Secondary Injector open circuit No

73 LLLLLLL SSS Rear Secondary Injector open circuit No

76 LLLLLLL SSSSSS Auto Tranny Lockup Signal open or short circuit No

77 LLLLLLL SSSSSSS Auto Tranny Reduce Torque Signal
open or short circuit No

Nope, no codes prior to me disconnecting the MOP. I disconnected it to see if the smoke would go away (this caused the code initially) and now the code comes back after clearing the ECU even with the MOP connected.

Oops, quick on the trigger with that one. I was going to add that I think I just need to look at the connector again tonight and hope that it is broken and not the ECU. Also, thanks for the continued help.

Alex

Incase anyone is searching for this topic in the future one of the wires near the connector on the MOP had rubbed against the oil drain tube from the Turbos. Once repaired and codes cleared it ran fine.