What Does Engine Code P2022 Mean?
A P2022 engine code means there is an issue with your Intake Manifold Runner Control (IMRC) system.
Written by Olivia Rose
Reviewed by Melanie Reiff
A P2022 engine code signals a problem with your Intake Manifold Runner Control (IMRC) system. It could mean an issue with your IMRC position sensor or switch, harness, or circuit.
You can read diagnostic trouble codes (DTCs) with an OBD-II reader to identify problems in your car’s engine. But the codes can be confusing. You need to understand what a car OBD code means and what problems it may suggest in your engine.
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What does the engine code P2022 mean?
Definition: Intake manifold runner position sensor/switch circuit high bank 2
The engine code P2022 indicates an issue with your
Intake Manifold Runner Control (IMRC) system
. The IMRC system helps regulate the amount of air that enters your cylinders. How much will it cost to fix?
If you don’t have an OBD-II reader—or if you aren’t able to diagnose this engine code on your own—it will cost you one hour of labor to have a mechanic diagnose your problem. The cost of an hour of labor will vary depending on your mechanic, but expect to pay around $75 to $150.
That’s just the diagnostic cost. The cost to replace your IMRC could be around $300 to $700 depending on your car.
What can cause the P2022 engine code?
Your car’s Powertrain Control Module (PCM) monitors the IMRC system during continuous or Key On Engine Off (KOEO) self-test. Basically, when you start your car, your car’s computer is making sure your IMRC system is operating without failure.
When you get the P2022 engine code, it means that your PCM has detected a failure in your IMRC system. Here are the possible causes of a failed IMRC system:
- Intake Manifold Runner Position Sensor/Switch harness is shorted or open
- Intake Manifold Runner Position Sensor/Switch is faulty
- Intake Manifold Runner Position Sensor/Switch circuit has a poor electrical connection
- Mechanical failure in your IMRC system
- IMRC hardware is damaged, seized, or obstructed
Common symptoms of the P2022 engine code
The main symptom of the P2022 engine code is your
check engine light turning on
. This will prompt you to use an OBD-II reader to identify your engine’s issue or take your car to a mechanic to have them diagnose the problem. How serious is the P2022 engine code?
The P2022 engine code is serious and should be repaired immediately.
The IMRC controls the airflow ratio in your pistons. If your IMRC system fails, you risk running your ratio too lean or too rich. This puts your car at risk of pre-detonation or retardation—which puts extra
wear and tear
on your engine. Can I fix the P2022 engine code myself?
Fixing the P2022 engine code requires assessing your IMRC system—and potentially replacing the entire system. This fix is highly difficult and should only be performed by someone who really knows the ins and outs of an engine.
If you want to attempt this fix on your own, make sure you diagnose the problem correctly. You might have to:
- Replace the IMRC
- Replace the circuit fuse
- Replace or repair the wiring harness
Note that wiring issues can be especially difficult to diagnose and repair at home, so you may want to have a mechanic look at your engine if you think you have an issue with your wiring harness.
Replacing the Intake Manifold Runner Control (IMRC) system
If you find that your entire IMRC system needs to be replaced—and you want to attempt this at home—here are the steps for replacing your IMRC system:
- Remove your engine trim cover from the top of your engine
- Remove the defective IMRC
- Install the new IMRC
- Reinstall engine trim cover
- Scan engine and test that new IMRC is operating properly
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