Disconnect the motor from the harness and use the test leads to measure the resistance. Dealer checked, found nothing wrong. Eventually traced to a shorted pin in a wiring harness. The solution is here : P050A Possible Solution: Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. Some shops will scan your codes for free. Part is ordered and will be replaced soon. As a result, the engine stutters or backfires, if it runs at all.
Bear in mind that most applications have a set procedure that has to be followed before either the code can be cleared, or the system re-scanned to see if the code persists. In terms of specific differences between Idle Air Control Valves, it should be noted that apart from outward appearances, there are fundamental differences between the windings of stepper motors used in these devices. The Check Engine light came on in my car and I went to an auto parts store so they could read it and tell me the code. This is done most easily from below the car in the area near the oil filter. . Otherwise turbo and manifold worked great. Use extreme caution during this process to avoid causing damage where there was none before.
Leak first found by Midas Bander rd. Possible symptoms of code P050A vary between slight and barely detectable, to severe driveability issues that can effectively render a vehicle un-driveable. The image below shows the construction of a typical Idle Air Control Valve that uses a pintle to control the effective diameter of the bypass orifice. Often, the manufacturer provides a thorough and comprehensive guide to diagnose and repair for problems like this. Note the threaded pintle that passes through the armature- in designs of this type, the pintle is extended or retracted when the armature rotates. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.
The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. Thus, the valve must be cleaned. P0507 should not prevent the vehicle from driving to a safe location once the malfunction occurs. Dealer troubleshot for over an hour and contacted hyundai canada, issue still remains unfixed. Note however that not all Idle Air Control Valves use a pintle; in some cases, use is made of a rotary valve, or vacuum-operated diaphragm, that achieves the same thing, which is to control the amount of air that bypasses the throttle plate. This buildup can cause issues with the operation of these parts by clogging them or stopping proper movement.
By rotating only a few degrees for each pulse received, the pintle that controls the airflow through the valve can be controlled very precisely, with the pitch of the screw thread on the pintle determining the actual amount by which the pintle is extended or retracted for each degree of rotation of the motor. If the plug wires are out of sequence, the explosion occurs at the wrong time. Step 2 If resolving all other codes did not resolve P050A, consult the manual to locate the Idle Air Control Valve, and follow the instructions provided to remove the valve from the engine, and inspect the valve for the presence of carbon deposits. Dealer replaced throttle body assembly under warranty. This information can be of use should an intermittent fault be diagnosed later on.
Some vehicles will have audible tap or pop noise for this code to store. I noticed drips on the driveway, 38900 km Boost was not holding, eventually received an overboosting code. Tire replaced and system fixed. In most cases, the carbon can be removed from the pintle and passages relatively easily with an approved solvent, which will resolve this code nine times out of every ten. Scan your codes and follow the chart to determine what the code means. Also, note that not all causes listed here will have the same effect on all applications. Consult the manual to determine the number of steps for the application being worked on, and activate the stepper motor several times with the code reader to verify that the pintle does in fact reach both the fully retracted and extended positions.
Close - Short P1553 Idle Speed Act. Depending on the design, one stepper motor may rotate say, 5 degrees for each signal receives, while another may rotate 10 degrees for each signal, or pulse. When this happens at the wrong time, such as when the engine is idling, the idle quality is seriously affected by the introduction of exhaust gas into the inlet tract. Now need to pay because it is under warranty. If required, remove the throttle body from the inlet tract to be able to clean out all carbon deposits from all internal surfaces, paying particular attention to the air passages running through the throttle body.
Step 1 Record all fault codes present, as well as all available freeze frame data. What causes the P0507 code? Look for signs of damages on the wiring harness atop the engine. Autozone is one place that will give you the code number. All covered under warranty including retint of window. Regardless of the design differences between Idle Air Control Valves refer to the Troubleshooting section of this guide for more details , all are responsible for maintaining the quality of the engine idle. Windings with center taps are used in uni-polar permanent magnet motors as used in many Chrysler applications. This code is related to P0505 and P0506.