This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time. Did you find and correct the condition? In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. When the check engine light comes Chevrolet Silverado P2122 code on the first you should check is the gas cap. What causes the P2122 code? Is the amperage more than the specified value? Refer to and in Wiring Systems. What repairs can fix the P2122 code? Reconnect electrical connector to sensor. Thanks, Chuck May 03, 2012. If the voltage changes as you wiggle the connector or the harness, the wiring is bad.
The car was working fine for a while Paul, I had this problem on a supercharged car a few months back. It knows where each voltage will be as it skews back and forth. Other times it happens under a hard acceleration in 1st gear, if tires spin and I am off the throttle then back on the throttle. P2122 Chevrolet Possible Solution: Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. The numbers below refer to the step numbers on the diagnostic table.
Did you find and correct the condition? If all four of these parts are in good working condition, the cause may lie in , , or grounds. It knows where each voltage will be as it skews back and forth. There are 2 pedal position signals in the sensor. That's the carbon monoxide talking, friends. Then clear the trouble codes and check for proper operation. Now don't ask yourself; What should you do with P2122 code? I remember discussing this but thought you said after a certain amount of time it just went away or what happened.
This is due to the potential need for multiple tests with a scan tool or voltage meter, hands-on inspections, and test drives. Also, on a hot day as the gas heats up and vaporizes, those same vapors push into the canister where they're stored. Did you complete the replacement? Continue driving and see if the check engine light turns off. So you have to refer to the factory legends to learn the identification symbols and then refer back to circuit diagrams to find the splice and ground locations. © 2012 Rick Muscoplat eautorepair. This is the cause of the reduced power concern you are feeling.
The next step is often a visual inspection of all wiring and connectors; if damaged wires or connectors are found, they are replaced. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. However, this code can also be generated by the installation of aftermarket equipment that is tapped into the wrong wire radio, remote starter, radar detector, etc. Review the electrical schematic and diagnose the shared circuits and sensors. When you fill your car with gas, the vapors in the tank get forced into a canister filled with activated charcoal. While not car-threatening, it's good to take care of this right away to improve gas mileage. Common Causes The most likely cause of this code being stored is a defective throttle actuator control motor, throttle position actuator, throttle position sensor, or pedal position sensor.
This randomly started happening one day with no tune changes. So you should chech it on our car models. In being thorough from the start, the chance of other related problems cropping up is greatly reduced. Book an appointment online, for the cost of repairs, or discuss the possibilities with a representative at 1-800-701-6230. If you need to dig into your doors, dash or console, Alldatadiy. The software converts these degrees to counts, which is the input to the torque based strategy.
Did you find and correct the condition? ©, 2015 Rick Muscoplat Save. Step Action Values Yes No Schematic Reference: Connector End View Reference: or 1 Did you perform the Diagnostic System Check - Vehicle? The solution is here : Chevrolet Silverado P2122 Possible Solution : The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. One reads 0-5 and the other basically reads 5-0. Wiggle the connector and the wiring harness. At some point it has to be emptied.
At least open a window on your way to the shop. Fight the urge to take a little nap first. Also make sure the charging system is good. Is the voltage within the specified range? Need help with a P2122 code?. Howard, I have all that information although I do appreciate you copying and pasting it for me. Did you find and correct the condition? The pedal position signal is converted to pedal travel degrees rotary angle by the.
Follow the rule that says to diagnose codes in the order in which they are stored and you will improve you chances for a successful diagnosis. But the charcoal can only hold so much vapor. Monitor that voltage for while without touching anything else. It happens every once in a while when starting the car, especially if you have to crack the throttle to start the car. I will do my best to get back to you as soon as possible. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver. All you need to do is take the old one off and screw on the new one.
If a concern is present with one of the circuits the other input is used. If you find water in the connector, locate the source of the leak. So you should chech it on our car models. To begin diagnosing the cause of the P2122 trouble code, first verify its existence. If the P2122 code does not register, the issue is likely resolved. Continue driving and see if the check engine light turns off.