P0201 OBD2 trouble Code generally points to an problem with her fuel injector or wiring boot. Grab your Noid Lite and get to testing

This method the ECU is detecting a fault in the injector or connected wiring in cylinder #1. This kind of code is mostly connected with other engine misfire codes favor P0200, P0202, P0203, etc.

You are watching: P0201 injector circuit open cylinder 1

The ECU will generally check and also monitor the voltage and also resistance on all the fuel injectors. As soon as the onboard computer system verifies the voltage or resistance the the injector circuits and injectors space out of range, it will certainly instantly trigger the inspect engine light.

The level Rate Mechanic did a quick video showing a “hack” if girlfriend don’t have a Noid Lite. Give it a watch!

What space the causes of P0201 Fault?

Based on my an individual experience, the visibility of a inspect engine light and P0201 code is most most likely attributed to a failing or negative fuel injector, particularly in cylinder #1. And even though a faulty injector is most most likely the culprit, it is also important to examine all connected wiring. Test your fuel injector with a noid lite or multimeter or mechanic’s stethoscope!

Fuel injectors are frequently to blame because that this p0201 DTC! Img creds: Greg top top Flickr

The wiring harness may be frayed, or there’s a broken wire inside the wiring harness. The is fairly easy to blame this dtc on a poor injector, specifically if you take into consideration the harsh symptoms once such a problem is evident. However it is always wise to inspect the resistance of the injector before buying a brand-new one. Various other mechanics can tell friend it is far better to replace all the fuel injectors to protect against the same difficulty later on, i beg your pardon actually renders sense if you journey an enlarge or high-mileage vehicle.


What space the symptoms of P0201 OBD-II code?

Since the P0201 password is related to a bad injector or faulty wiring, the symptom are incredibly noticeable and hard to bear.

hard starting rough engine misfires negative acceleration hesitation basic feeling of sluggishness check engine light will illuminate glaringly in the console.

And if the difficulty is really negative (such as when zero fuel is being injected inside cylinder #1), the engine will certainly refuse to start, also after cranking repeatedly. Once the inspect engine light is triggered, the ECU will enter into failsafe setting until the trouble is fixed.

Replace the fuel pump and your engine must purrr!

How lot does it cost to deal with P0201 DTC?

Replacing the fuel injectors i will not ~ come cheap. Relying on the kind of vehicle, replacing every the injectors will cost $500 come $1000 dollars or more for a complete set. If you have an older car, you should seriously think about replacing all the fuel injectors to avoid having the same trouble later on.

But if the P0201 password is traced to a wiring problem, the problem can it is in remedied using a simple wire splicer and some electrical tape and can expense maybe $50-$100 including shop labor. However, girlfriend will must peel turn off or open the wiring harness to find the faulty or shorted wiring.

Of course, you deserve to save money by adhering to the exactly diagnostic procedures. Refer to the owner’s manual or business manual that your car to know more. The an easy procedure is to confirm the operation of the fuel injector in cylinder #1 before ruling out a wiring problem.

Fuel injector cleaner might fix this code as well.

See more: What Are The First 3 Common Multiples Of 7 And 8 ? Methods To Find Lcm Of 7 And 8


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