ECU continues to flash MOP code
#1
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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
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
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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
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
#6
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
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
#7
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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.
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#8
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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
Alex
#9
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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.
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