On this page, you’ll be able to learn more about the following codes:
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These codes all have to do with the fuel injector circuit. The way that sequential fuel injection works is that your powertrain control module (PCM) controls each injector individually. When the PCM tells a specific fuel injector to turn off, it expects that the driver ground circuit, a ground circuit individually supplied to each injector, will have a high voltage; the opposite will happen when the PCM tells a specific fuel injector to turn on. If the voltage it receives is not the expected voltage, it will set one of these trouble codes.
You may also be interested in P0205 Cylinder 5 Injector A Circuit.
More About the P0200, P0201, P0202, P0203, and P0204 Codes
The P0200, P0201, P0202, P0203, and P0204 codes all have to do with different elements of the fuel injector circuit. If there’s simply a generalized problem, then you might see P0200; P0201, P0202, P0203, and P0204 all have to do with specific cylinders and, therefore, specific injector circuits. The specific cylinder indicating an issue will point you toward the problem your engine is experiencing.
Depending on the extent of the problem, you might experience a number of different symptoms for these codes. This can range from simply an illuminated check engine light to issues with your engine misfiring, as well as rough running and poor engine performance overall. You might also notice a problem with your fuel economy if the injector is running too frequently.
Because this is such a generic code, there are a wide number of triggers that can cause the P0200, P0201, P0202, P0203, and P0204 to fire. A defective fuel injector or a problem with the circuit itself are both very common causes of these codes. In some cases, you might see an issue with the PCM or a problem with the battery voltage, although these will usually cause other codes to fire and are less common.
The P0200, P0201, P0202, P0203, and P0204 codes can all result in issues with drivability. That means it’s important for you to notice and fix them as soon as possible. Even if you don’t initially notice drivability problems, that doesn’t mean problems will never pop up. Treat the codes as though they are serious and fix them early before they become a serious problem.
An expert will not recommend driving if your vehicle is showing P0200, P0201, P0202, P0203, or P0204 codes. Continuing to drive with these codes active can create serious problems with your vehicle’s function, and poor engine performance or engine misfiring can seriously damage your engine for good, not just right now.
These codes are all very generic. They indicate that there’s a problem with the fuel injector circuit, but not exactly what that problem is, nor what you can do to fix it. Additionally, the fuel injector circuit will be uniquely different for each vehicle make and model, which means that an expert will be more well-equipped to handle it.
Inspecting the area where you’ll expect to find the P0200, P0201, P0202, P0203, and P0204 codes is fairly difficult. Not only are there a number of potential problems, but also those problems will vary depending on your vehicle; you’ll need to know what a functioning vehicle looks like before you start looking. Allow an expert to inspect your vehicle instead for the best results.
Although it may be possible for some skilled DIYers to fix the P0200, P0201, P0202, P0203, and P0204 codes, most hobbyist DIYers will not be able to fix this problem on their own. This is one of the biggest reasons that you should consider looking for an expert to help you fix these problems, rather than trying to do it yourself.
Kelley can help you find a repair shop in your area full of mechanics skilled enough to help you fix the problem. When you give over your engine to an expert, you don’t have to worry about whether or not you have the skills and the knowledge necessary to bring your engine back to a functioning state.
However, if you’re still interested in learning more about the different codes that might spring up in your engine, check out the KBB OBD-II database. Full of all sorts of different codes, this database is a great starting point to learn more about any issues you might be experiencing.
All recalls are considered serious. Stay safe. Take care of any recalls ASAP. The good news? Recall repairs are free when performed at a local dealer.