Error Code P2142: What It Means & What To Do?

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So, you just found out that there’s an OBD code flashing because of which the check engine light was on? Well, don’t worry the P2142 code is set by the PCM when it detects an issue with the intake throttle actuator. Read along to know more about the code, the different components involved and most importantly how to get rid of it.

The P2142 code is defined as an issue with the EGR system, but it actually refers to an electrical problem with the intake throttle actuator. This is what opens and closes the throttle plate in your electronic throttle body vehicle. The Powertrain Control Module is responsible for informing the EGR throttle control valve where to position itself as per the driver’s requirement. If the inputs regarding voltage signals from the EGR throttle control valve aren’t as needed by the PCM it will proceed to set the P2142 code.

What causes this problem with the Exhaust Gas Recirculation Throttle Control Circuit 'A' High?

• Signal circuit to the EGR throttle control valve is shorted
• EGR throttle control valve shows electrical problem within the circuit
• Fault with the EGR throttle valve
• Failure of the PCM

1. Powertrain Control Module - This is the brain of your engine management system, all codes can be set due to an issue with the PCM. Hence if you’re finding any issues in it, repair or replace. You can find superior quality PCMs at PartsAvatar Canada. Order online and receive it within a matter of days.
2. Diagnostic Tools - Faulty or inaccurate diagnostic tools won’t help you resolve your P2142 code. Find the perfect one to diagnose this code today from PartsAvatar.
3. Engine Control Module - Performs various important functions that help your vehicle to run smoothly. It is the computer of your vehicle, don’t delay repair if the P2142 code is flashing. If needed replace with PartsAvatar order from the comfort of your home, and have it delivered right to your doorstep.
4. Throttle Body - Fluid flow of your vehicle is managed here. Any damage to the throttle body can result in the P2142 code. Repair the damages or replace the throttle body by ordering online. It’s easy and you can avail free shipping on order above CAD $99.
5. Throttle Actuator - Is responsible for controlling the amount of air entering the engine via the driver's accelerator pedal. Any damages can be repaired via repairs or if that doesn’t help resolve the P2142 code then you will have to opt for replacement. Find the best for your car at PartsAvatar online.
6. Exhaust Gas Recirculation Valve - This valve performs the crucial function of recirculating a portion of an engine's exhaust gas back to the engine cylinders. Damages in the valve can cause a lot of engine damage, hence it is important that it is either repaired or replaced as per need. You can fix your P2142 code by ordering with PartsAvatar, we have a wide price range and variety for you to select from.

Willing to know some common symptoms of OBD Code P2142? Your wish is our demand. Have a look at them below:

Common Symptoms

• The check engine light is illuminated
• Vehicle take slender than usual for the exhaust system to get hot
• Difficulty in acceleration as compared to before

We have listed out so ways which would help you to correct the occurrence of OBD Code P2142. They are mentioned here as follows:

• Repair or replace Throttle actuator
• Repair or replace faulty electrical circuits and wiring
• Repair or replace EGR valve
• Repair or replace PCM

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of pcm, ecm, throttle body, control valve, throttle actuator and many more. Now all your problems would vanish within no time.

You can resolve the P2142 error code by following these diagnostic steps:

To begin with, get hold of all the instruments needed for successful diagnosis of this code, these will be; an OBD scanner, digital volt/ohmmeter, and an oscilloscope. In terms of information guides, you will need the service manual or the Technical Service Bulletin of your specific vehicle.

Now that you have everything handy, start by performing a visual inspection of the EGR valve control wiring and connectors, any damages noticed will have to be repaired or replaced. There are usually 3 or 4 wires at this control valve, so be careful and check all of them. If you’re unsure of their location, make use of of your vehicles Technical Service bulletin. There will be plenty diagrams and charts which you can use to get the exact location. Now continue your diagnosis by disconnecting the harness which is going up to the EGR throttle control valve and using the DVOM test the signal circuit. If you find that there’s no 5 volts signal to the valve or 12 volts repair the wiring coming from the PCM to the valve. There’ may also be an issue with the PCM.

If there are no issues there the next step would be to check if you have a good ground at the EGR throttle control valve. For this you will have to connect a test light to a 12V battery positive/red terminal and connect the other end to the ground circuit going towards the EGR throttle control valve circuit ground. Light not lighting up is a sign of circuit problem, if the test light does light up, carefully wiggle the harness going to the EGR throttle control valve and note if the light flickers. If it does, then there’s an intermittent connection. Accordingly perform repairs or replacements and clear the codes to see if it resets upon test driving.

You also refer your vehicles Technical Service bulletins for the tests to be conducted for diagnosis and repair or replace the EGR control valve accordingly. If there’s no issue found with it, chances are the problem is with the ECM. Replacing the ECM required reprogramming, so make sure you take help from a professional for this.

Common Mistakes When Diagnosing The P2142 Code

• Failure of the intake throttle actuator
• Failed PCM
• Problem with wiring

P2141 - Exhaust Gas Recirculation Throttle Control Circuit "A" Low