Are you having the p1507 Cummins on your vehicle? When an engine’s idle speed is less than the desired rpm, you may get this trouble code.
However, this article is for you if you don’t know what the code means and how to deal with it. Most of the vehicles on the road possessing internal combustion engines have crankcase ventilation systems. Here the crankcase filter is one of the main components of the crankcase ventilation system.
Every OBD-II diagnostic fault code has some specific meaning to express an issue. They appear with specific symptoms as well. So, knowing these symptoms help to identify the exact fault.
The p1507 can be easily diagnosed and repaired. So without any further delay, let’s dig into the details.
Troubleshooting P1507 Cummins
The p1507 is a generic onboard diagnostic trouble code indicating crankcase filter restriction in 6.7 Cummins usually. The crankcase pressure sensor observes the pressure inside a crankcase.
The PCM (powertrain control module) supplies the crankcase pressure sensor voltage (5-volt reference).
Thus the sensor signal voltage gets low when the crankcase pressure is low. On the contrary, the crankcase pressure is high when the sensor signal voltage gets near 5-volt (reference voltage).
Besides, the powertrain control module calculates the pressure of the air inside the crankcase. The PCM does the calculation by monitoring the voltage of the crankcase pressure signal circuit.
The crankcase vent filter prevents contamination and debris from entering the engine by reducing pressure from the engine. So when the filter gets blocked, it triggers the p1507 DTC.
However, let’s see the potential causes and symptoms of the p1507 Cummins crankcase filter restriction or other issues below.
|Blocks in crankcase hoses||High idle|
|Closed crankcase ventilation filter||Oil leaks|
|Crankcase depression regulator valve issue||Poor engine performance|
|Defective IAC valve||Engine check light ON|
How To Fix The p1507 cummins code
If you are stuck with 2012 cummins p1507 trouble code, you can also try these fixes mentioned below. These solutions have worked in most cases.
Obstructions in crankcase hoses can lead to a bad crankcase ventilation filter. Visually inspect the problem and scour up the hoses to fix the problem.
A closed crankcase vent filter can cause oil leaks and high idle engine speed that activates the p1507 error code. However, to clear up this Cummins crankcase filter restriction fault code, replace or repair the crankcase vent filter. Otherwise, it may damage the engine of your vehicle.
A faulty crankcase depression regulator valve can cause a crankcase ventilation filter restriction issue. This valve mainly maintains the pressure inside a crankcase. The crankcase pressure should be regulated properly to prevent oil leaks. Thus if any issue appears in the crankcase depression regulator valve, replace it.
Visually inspect the Idle Air Control valve. If there are any damaged or broken connectors or wiring, repair them. Also, check for stuck closed IAC valves and poor electrical connections and fix them.
The p1507 crankcase filter restriction repair cost rate may differ by vehicle’s model, engine type, or location. However, the repairing charge or labor rate may take up to 75 US dollars to 150 US dollars.
Moreover, it might take about one hour of labor work to diagnose the p1507 fault code.
A Helpful Tutorial You May Need!
Frequently Asked Question (FAQs)
What is the p1507 dodge code?
The p1507 is a diagnostic trouble code that defines there is a crankcase filter restriction in your vehicle. This diagnostic trouble code is triggered when there is an engine idle speed less than the desired rpm. The crankcase vent filter prevents contamination and debris from entering the engine by reducing pressure from the engine.
What are the symptoms of p1507 DTC?
Oil leaks from closed crankcase filters, poor engine performance, and acceleration are some common signs and symptoms of P1507 DTC. The check engine light or warning light will light up as a sign of showing the DTC. Moreover, high idle speed is another possible symptom of the crankcase filter restriction problem.
What is the cost to diagnose the p1507 DTC?
The p1507 crankcase filter restriction repair cost rate may differ by vehicle’s model, engine type, or location. However, the repairing charge or labor rate may take up to 75 US dollars to 150 US dollars. it might take about one hour of labor work to diagnose the p1507 fault code
So that was all about p1507 Cummins OBD-II diagnostic trouble code. Hope this article will help you to figure out what to do when the DTC pops up.
Carefully inspect and diagnose the causes to solve the error code. It’s always better to consult a professional or a mechanic to do his job.
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Meet our senior writer and content manager of Automasterx. He has worked in several mechanical garages and mastered different vehicle diagnoses and parts repair. He never stops until finding out the ultimate solutions for any vehicle fault code. However, ensuring the only solid solutions for each vehicle malfunction is his core part of the duty, alongside analyzing fault codes and signals.