Error Code P2170: What It Means & What To Do?

<<See All OBD Codes

The trouble code P2170 can be explained as Exhaust Press Regulator Vent Solenoid Control Circuit Low. This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model. The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile.

If the engine control module would detect a variation in the voltage coming from the exhaust system back pressure regulator vent control solenoid circuit that is outside the parameters set by the automobile manufacturer, then it would store the P2170 error code. This would also give rise to the illumination of the check engine light.

What causes this problem with the Exhaust Press Regulator Vent Solenoid Control Circuit Low?

• Some issues related to the exhaust pressure regulator vent solenoid
• Unlocked exhaust pressure regulator vent solenoid harness
• Unsatisfactory electrical connection in the exhaust pressure regulator vent solenoid circuit

1. Exhaust System Parts - Malfunctioning exhaust system parts may lead to a noisy engine exhaust. A significant decrease in the fuel efficiency, power and acceleration are likely to be observed first as soon as there is a fault in the exhaust system parts. So, it is important to change them. Log on to Parts Avatar now for supreme quality auto parts.
2. Engine Control Module - If there is any corrosion or breaks in the internal wiring of the harness, then it can cause a short in the ECM or can also cause corrosion in the ECM through the wiring harness. You can always rely on us as we have the best auto parts for our customers.
3. Powertrain Control Module - The onboard computer, or powertrain control module is the brain of the engine control system. Now if the brain is not working properly, then neither is the car engine. Get it replaced before the situation gets worse.
4. Electronic Control Unit - Is your car jump starting on reverse polarity? Or are you facing some intermittent starting issues? If yes, then it indicates that your electronic control unit is bad. So, it is very important to replace the defective electronic control unit with us at equitable prices.
5. Pedal Position Sensor - The accelerator pedal position sensor is fixed to the accelerator pedal and it can sense what position the pedal is in. A change in the position of the pedal would lead the sensor to change the electric voltage which it supplies. So, if there are some faults in your pedal position sensor, then replace it soon!
6. Throttle Position Sensor - Are you experiencing sudden idle surges and sudden hesitation while accelerating? Then these are the symptoms of defective throttle position sensor. Get it checked and replace if needed.
7. Diagnostic Tools - Buy quality diagnostic tools to check and diagnose OBD code P2170 error with the help of experienced mechanic. Visit us today! 

There could be countless symptoms that would accompany this fault code. Willing to know some common symptoms of OBD Trouble Code P2170? Your wish is our demand. Have a look at them below:

Common Symptoms

• Check engine light might come into signal
• Fall in engine performance
• The acceleration might be bad
• Vehicle may stall while driving

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• The malfunctioning exhaust pressure regulator vent solenoid harness should be repaired or replaced as per the need
• Carefully adjust the faults in the exhaust pressure regulator vent solenoid
• Recondition the non-functioning exhaust pressure regulator vent solenoid circuit
• Adjust the flawed powertrain control module

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of pcm, ecm, car muffler, body control module, ecu car, pcm module, ecm module, exhaust back pressure regulator and a lot more. We are sure that now all your issues would be resolved.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2170 code to be stored:

• The mechanic or the technician will use a diagnostic scanner or code reader like DVOM to visually scan for the error codes in the vehicle.
• After performing a careful inspection, every of the stored codes and freeze frame data are retrieved as it can help down the way for further diagnosis process.
• Most often he has to inspect the exhaust pressure regulator vent solenoid control circuit itself to see if they are faulty or damaged. Additional error codes that are stored in the vehicle are also addressed.
• The mechanic performs a continuity test between the PCM and solenoid to check the resistance.
• If the solenoid or the control modules are not faulty, he will then retune the code and test drive the vehicle.
• On test driving, if the P2170 code does not return soon, he will know that an erratic condition exits.
• But if the error returns instantaneously, he will check every component of the control module as well as the circuit like connectors, wires, harness, fuses etc for any possible fault.
• If any component is damaged, he will fix them right away.
• After performing this repair, he will inspect the exhaust pressure regulator vent solenoid control circuit as well.
• If the level is below the manufacturer’s specification, it has to be refilled and if the fluid is murky or contaminated it needs to be replaced.
• Every time a repair work is carried out, make sure that the mechanic test drives the vehicle after every repair so that the diagnosis is successful. This can eventually help him to know as to where the error occurred.

Common Mistakes When Diagnosing The P2170 Code

• One of the most common mistakes made by technicians while diagnosing the P2170 code would be clearing ECM memory codes before actually inspecting the freeze frame data. Make sure to check the freeze frame data first, and then work in the same order that the codes appear.
• Then another big mistake which can be made is to move the throttle plates by hand, this can actually cause other codes to appear in your automobile’s memory. Keep in mind to clear all ECM codes after the P2170 fault code is fixed.

P2171 - Exhaust Pressure Regulator Vent Solenoid Control Circuit High