How do I get a fail safe/low oil pressure fault to clear and or start?
Motor was replaced along with actuator. all wires from harness are good. battery and starter are new. replaced a bad ignition relay. i cleared all codes. i manually flashed the pcm by linking positive lead from battery to neg lead that i disconnected for 10min. i replaced the ecu because old one said it was a mismatch. i have no power going to starter and when bumped manually with key on i had no spark either. what now???
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codes p000A refers to camshaft position sensor(CMP) actuator, intake /left/front bank 1---slow response===causes ---wiring---CMP actuator---ECM
code P000B refers to CMP actuator, exhaust/right/rear bank 1--slow response -====causes ---wiring---CMP actuator---ECM
did it occur to you that if there is insufficient oil in the motor that items that require oil pressure may throw codes when that oil pressure is fluctuating from air being pumped
first fill the sump to the high mark on the dip stick and keep it there , then it the codes reappear have an accredited service centre change the actuators
answer courtesy of obd-codes.com Potential causes of a P0026 diagnostic trouble code may include: Low engine oil level or contaminated oil Clogged oil system Malfunctioning control solenoid Malfunctioning camshaft actuator Timing chain/belt loose or incorrectly adjusted Malfunctioning ECM/PCM Possible Solutions Engine oil - Check the engine oil level to make sure engine oil capacity is sufficient. Since the actuators work on oil pressure, the proper amount of oil is critical to ensure proper operation of the VVT system. Dirty or contaminated fluid may cause buildup which can lead to failure of the control solenoid or the camshaft actuator. Control solenoid - The control solenoid for the camshaft can be checked for continuity using a Digital volt/ohm meter (DVOM) using the ohms function, by unplugging the solenoid wiring harness connector and checking the resistance of the solenoid with the (+) and (-) leads of the DVOM on each terminal. Ensure the internal resistance is within manufacturers specifications if available. If resistance is within specifications, remove the control solenoid to verify it is not contaminated, or if there is damage to the sealing O rings to cause a loss of oil pressure. Camshaft actuator - The camshaft actuator is a mechanical device controlled by internal spring pressure and adjusted by oil supplied by the control solenoid. When no oil pressure is supplied, it will default to a "safe" position. Refer to the manufacturers suggested procedure to remove the camshaft actuator from the engine's camshaft to ensure no leaks are present that would cause a loss of oil pressure to and from the actuator's hydraulic supply/return feed lines or within the actuator itself. Check timing chain/belt and components to ensure they are in proper working order and installed in the correct position on the camshaft gear. ECM/PCM - The ECM/PCM commands the control solenoid using a Pulse width modulated signal (PWM) to regulate the amount of on/off time, resulting in a control of the pressure used to move the camshaft actuator. A graphing multimeter or oscilloscope tool is required to view the PWM signal to ensure proper operation of the ECM/PCM. To check the PWM signal, the positive (+) lead is tapped into the ground side of the control solenoid ( if supplied by constant voltage, ground controlled ) or the powered side of the control solenoid (if permanently grounded, positive control ) and the negative (-) lead is attached to a good known ground. If the PWM signal is not consistent with changes in engine RPM, there may be a problem with the ECM/PCM
code p1383 refers to camshaft position actuator (CMP) bank 1---voltage low===causes--wiring---oil pressure low/high--mechanical fault---CMP actuator
use a mechanical oil pressure gauge to eliminate pressure as a problem.change the CMP actuator
before you waste money talk to an accredited service dealer and check what mechanical problems could be happening.
Error Code:P0130 Fault:
Oxygen Sensor (O2S) 1, Bank 1 - Circuit Malfunction Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
-Oxygen sensor (O2S).
-Engine control module (ECM).
Error Code:P0505 Fault:
Idle Speed Control (ISC) System - Malfunction Possible Cause:
-Idle speed control (ISC) actuator/Idle air control valve (IAC) valve.
-Throttle valve tight/sticking.
-Engine control module (ECM).
Error Code: P0100 Fault Location:
-Mass Air Flow (MAF) Sensor/Volume Air Flow (VAF) Sensor - Circuit --Malfunction Possible Cause:
-Mass air flow (MAF) sensor.
-Volume air flow (VAF) sensor.
-Engine control module (ECM).
Error Code: P1491 Fault:
Exhaust Gas Recirculation (EGR) Valve Insufficient Lift Possible Cause: -Wiring harness.
-Engine Control Module (ECM)/Powertrain Control Module (PCM)
Error Code:P0966 Location:
-Pressure Control (PC) Solenoid B - Circuit Low Possible Cause:
-Wiring short to earth.
-Pressure control (PC) solenoid.
-Engine control module (ECM)/Powertrain control module -(PCM)/Transmission control module (TCM) .
If all power is lost in the car, it could indicate a bad battery connection, bad wiring, or loose main wire harness, etc.
If a warning light comes on - it may be going in to Safe Mode.
Safe mode is the set of parameters that the car will use if it believes there
is a fault with the engine that could cause irrepairable or long term damage.
Generally it is an excess in expected boost pressure entering the engine.
This excess boost from the turbo tends to happen for 4 reasons.
The boost pressure sensor (MAP sensor) is faulty.
The wastegate is seized shut or slightly open.
The wastegate actuator is faulty.
The air line to the wastegate actuator is damaged or off.
Obviously, if the sensor is faulty, it will tell the ECU lies about the boost pressure.
If the wastegate assembly fails in any way it will fail to open to bypass the turbo.
The turbo will continue to spin up, increasing the boost pressure, causing the fault.
Initially I would suggest disconnecting the battery for 5 minutes (make sure you know your
radio code before doing this), this will turn safe mode off and your car should run normally
again. Drive home with a bit of care, you may find the car might never do it again. If it does
go into safe mode again, you know you have a real problem and not just a glitch.
Best to contact your dealer and have it checked out.
You vehicle is equipt with a fail safe switch incase your oil pressure is low it shuts off the fuel pump, More likely your oil pressure switch will need to be replaced,its 2011 relace the oil pressure switch more likely the sensor itself has failed,(oil breaks plastic after awhile,) make sure you have motor oil in the crankcase check the level,
The low oil pressure warning lamp will illuminate when the ignition switch is turned to the
position without the engine running. The lamp also illuminates
if the engine oil pressure drops below a safe oil pressure level. To
test the system, perform the following:
Turn the ignition switch to the
If the lamp does not light, check for a broken or disconnected wire around the engine and oil pressure sending unit switch.
If the wire at the connector checks out OK, pull the connector
loose from the switch and, with a jumper wire, ground the connector to
With the ignition switch turned to the
position, check the warning lamp. If the lamp still fails
to light, check for a burned out lamp or disconnected socket in the
REMOVAL & INSTALLATION On the
2.4L engine, the oil pressure switch is located on the side of the
engine block facing the firewall. On the 3.0L engine, the oil pressure
switch is located on the oil filter adapter housing, next to the starter
motor. On the 3.3L and 3.8L engines, the oil pressure switch is located
next to the oil filter.
Locate the oil pressure sending unit on the engine.
Disconnect the negative battery cable.
Disconnect the pressure switch electrical harness.
Using a pressure switch socket, deep-well socket or wrench, loosen and remove the pressure switch from the engine.
Install the pressure switch into the engine and tighten securely.
Attach the electrical connector to the switch.
Connect the negative battery cable.
Start the engine, allow it to reach operating temperature and check for leaks.
Most important thing you need to do is to establish the actual oil pressure. put a mechanical gauge on the engine and read real oil pressure. If pressure is low (min is 15psi, I prefer to see at least 20 at idle) there is an internal problem...bearings etc. If pressure is good, sending unit has failed...replace it. I would not drive it 'till the oil pressure is verified as being safe. You might get lucky and someone just forgot to plug in the sending unit, but it must be checked!!! good luck