P0323 OBD-II Trouble Code: Ignition/Distributor Engine Speed Input Circuit Intermittent

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0323 code

P0323 is a diagnostic trouble code (DTC) for "Ignition/Distributor Engine Speed Input Circuit Intermittent". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0323 DIAGNOSTIC Get a fair and transparent estimate upfront

P0323 code definition

When the powertrain control module (PCM) detects an interrupted or erratic signal from the crankshaft position sensor or the distributor, a P0323 code will be stored.

What the P0323 code means

The PCM regularly gets signals from the crankshaft position sensor or the distributor, telling the PCM the position of each relative to the other. When one of these signals is interrupted, erratic, or comes back abnormal in any other way, the PCM will take this to mean that the distributor and crankshaft are misaligned.

What causes the P0323 code?

There are a few different potential causes for a P0323 code to be stored, including:

  • The sensor harness for the ignition and/or distributor is shorted or open.
  • There is a poor connection in the ignition or distributor’s engine speed sensor circuit.
  • The battery has a low charge.
  • The PCM is faulty.
  • The crankshaft position sensor is faulty.

What are the symptoms of the P0323 code?

When a P0323 code is stored, the driver may notice one or more of the following symptoms, in addition to the illumination of the MIL (Malfunction Indicator Light) or Check Engine light:

  • Lack or loss of power
  • Engine runs rough or stalls
  • Difficulty starting the engine

How does a mechanic diagnose the P0323 code?

After detecting that a P0323 code has been stored with an OBD-II scanner, a mechanic will begin by inspecting the wiring and connections to determine if there is a shorted or open circuit causing the signal interruption. If no damage is detected in the wiring, the mechanic will then inspect the crankshaft position sensor, gear, and sensor connector to determine if any of these are damaged. After repairs are made, they will then clear the code and run the vehicle to ensure that the code is not stored again. If no other damage is found, the battery is at full charge, and/or all repairs are made and the code is still stored, the PCM may be faulty.

Common mistakes when diagnosing the P0323 code

Failing to diagnose the causes of any other related codes or the cause of engine misfires, and assuming that the problem is a faulty sensor, can result in a misdiagnosis. Replacing a sensor when the problem is actually a battery with a low charge, damaged wiring, or a faulty crankshaft gear will not fix the problem, and the code will be stored again.

How serious is the P0323 code?

The P0323 code may be serious, or it may be a minor problem that can be fixed relatively quickly, but it should be repaired immediately in either case. If no other symptoms are evident besides the illumination of the MIL or Check Engine light, you may not think that it needs to be addressed right away, but if left alone, it could result in more serious engine damage, stalling at a dangerous time or place, and/or other problems.

What repairs can fix the P0323 code?

Depending on the cause of the problem, potential fixes include:

Additional comments for consideration regarding the P0323 code

If the P0323 code is stored, the problem may be with the PCM, but this is very rare. In most cases, a battery with a low charge or damaged wiring will be the cause. Thus, it’s important to diagnose the issue properly before continuing with any repairs. Furthermore, if the cause of the P0323 code is not repaired and the code is not cleared, the Check Engine light will likely remain on, and the vehicle will not pass OBD-II emissions testing.

Need help with a P0323 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

Check Engine Light
trouble codes
P0323

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0323 code.

SCHEDULE P0323 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(6,328)

Rating Summary
5,857
225
52
35
159
5,857
225
52
35
159

Gustavo

17 years of experience
296 reviews
Gustavo
17 years of experience
Toyota Corolla - Check Engine Light is on - New Braunfels, Texas
As always, punctual and professional. He explains the problem thoroughly. I feel confident in his work and knowledge.

Greg

22 years of experience
86 reviews
Greg
22 years of experience
Mazda 3 - Check Engine Light is on - Queen Creek, Arizona
Greg was scheduled for 1:00 but he was able to come earlier and let us know right away. He was very thorough and spent his time going thru the entire car.

Gustavo

17 years of experience
296 reviews
Gustavo
17 years of experience
Lincoln Aviator - Check Engine Light is on - San Antonio, Texas
Made call before appt. -courteous-knowledgeable-got part need & did prompt repair after computer check.

Claud

8 years of experience
325 reviews
Claud
8 years of experience
Chevrolet Trax - Check Engine Light is on - Grosse Pointe, Michigan
Very good experience. He arrived on time. Explained what he was going to do. Completed the work and was thorough in what I needed for my next service in plain language vs car jargon. I'm a raving fan of Claud!


More related articles

P0226 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch C Circuit Range/Performance Problem
P0226 P0226 code definition Throttle/Pedal Position Sensor/Switch C Circuit Range/Performance Problem What the P0226 code means P0226 is a generic OBD-II code which indicates that the throttle/pedal position sensor/switch C circuit has a range or performance problem causing the sensor...
P0307 OBD-II Trouble Code: Cylinder 7 Misfire Detected
P0307 code definition Cylinder 7 Misfire Detected What the P0307 code means When the P0307 diagnostic trouble code is stored by the...
5 Warning Lights You Should Never Ignore
Car warning lights tell you something in your car needs attention. If you see the Check Engine Light or other warnings, get it inspected right away.

Related questions

Check Engine light on

The powertrain control module (PCM) takes inputs from dozens of sensors. It then uses this information to control outputs such as fuel delivery and emissions equipment. If the PCM detects a problem anywhere in the system it will illuminate the...

Why would my check engine light come on in my 2005 Honda Fit after it was serviced

Hello. It is not normal for the check engine light to come on after being serviced. Either something was not installed correctly or one of the parts is wrong. It may also be something completely different. I usually start by...

Flashing check engine light, service stabilitrak, traction control light, only while idling

Hello. If you are getting a code on cylinder 4, then that means there is an issue with that cylinder. Most of the time, with so few miles, the issue is not related to dirty fuel injectors but is caused...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com