P02EC OBD Error Code: Problem & Solutions

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Do you have a faulty Powertrain Control Module and problems with DIAFCS system? Is your malfunction indicator lamp flashing? If Yes. Well chances are that your vehicle is set to OBD error code P02EC. Wondering what this code means? You can get answers to all your queries in our subsequent sections.

OBD error code P02EC is a generic code that indicates high air flow condition in the diesel intake air flow control system. It might be because of some mechanical or electrical problems such as DIAFCS motor circuit issues. We recommend you to get rid of this issue at the earliest. Having said that, let’s have a closer look at few of its common causes.

What causes this problem with the Diesel Intake Air Flow Control System?

• There might be an open signal circuit to the DIAFCS motor
• Possible voltage problems in the signal circuit to the DIAFCS motor/control
• There might develop a short to ground in the signal circuit to the DIAFCS motor/control
• Problems with the DIAFCS motor/control
• Faulty Powertrain Control Module

1. Throttle Body - if your vehicle is set to OBD error code P02EC, chances are that you are facing a throttle body assembly failure. If you wish to fix it and need parts to do so. We at PartsAvatar can prove to be your dream destination.
2. Intake Air Valve - Chances are that your vehicle is demanding an intake air valve replacement. Then what are you waiting for? Listen to your vehicle and get it replaced today with new one with us.
3. Mass Air Flow Sensor - A damaged air flow sensor can become a potential cause for many issues. So why not check and replace the damaged ones?
4. Intake Manifold - We have in stock high end intake manifold for all makes and models. So, don’t waste time and get your hand on our best range of auto parts today.
5. Powertrain Control Module - Are you looking for Powertrain Control module, commonly known as PCM? If yes, then have a look at our collection. You will easily find one for your vehicle make & model.
6. Digital Voltmeter - If you need one, you can simply find it with us. You can choose from a selection of diagnostic tools on our website and make it easy on yourself when diagnosing problems and creating accurate solutions for your car.

Few of the common symptoms related to OBD error code P02EC are listed as follow:

Common Symptoms

• Malfunction Indicator Light Illumination
• Low Idling speed
• Flashing of Electronic Throttle Control symbol
• Eventual Loss in Power
• No Burning of Soot out of the DPF Catalyst
• Rise in Fuel Consumption

Correcting a problem with your vehicle is not an easy job. You just don’t need to wish for it but you also need to work for it. You can get rid of this OBD error code P02EC if you follow few simple steps mentioned as follows:

As for all error codes, you will first need to clear the code and then perform a road test to verify if the code actually exists

To correct this issue, you might need to undergo few replacements for the defective parts such as:

• Diesel intake air flow control motor
• Powertrain Control Module
• Throttle Body Assembly

In order to correct this problem, if you need any of auto parts, you can find them with us top brand auto parts. We have in stock best priced air intake system parts for all makes and models online in Canada. 

If you wish to correct any of the error code you will first need to efficiently diagnose this. While doing so you might commit few mistakes, to prevent you from doing so we have listed out few steps for you to keep in mind.

Firstly, you will need to locate and visually inspect your vehicle’s DIAFCS motor control system. Also, check the connectors and wirings to it. Make sure there are no scraps, bare wires, burnt spot or melted plastic. Next, take out the connectors and check carefully for any burns or green tints that indicate corrosion. Clean the terminals if needed. Next, use a scan tool to check if the OBD error code P02EC returns. In case it does you will need to inspect the DIAFSC and all the related circuits for any damage.

Now, take the key off and disconnect the electrical connectors at the DIAFCS motor/control. Now connect a digital voltmeter black lead to the ground terminal at the DIAFCS motor/control wiring harness connector. Now turn the key on and engine off and check for the manufacturer’s specifications. Make sure that the voltmeter reads 12 volts. In case it does not, you will have to repair the power or ground wire. You can also replace the PCM if needed. While installing the PCM make sure it is programmed and calibrated to the vehicle correctly.

Now, in case all tests pass and you still face the same code, then you will need to check the manufacturer specifications.

Common Mistakes While Diagnosing The P02EC Code

You might undergo the following failures:

• PCM failure
• Throttle body assembly failure
• Wiring issue

P02ED - Diesel Intake Air Flow Control System - Low Air Flow Detected