In this video, we are working on a 2004 VW TDI with a cylinder 1 misfire and it has a check engine light on with a stored code P0301 P0302 P0304 P0305. After diagnosing the car and removing the valve cover we found the cylinder 1 camshaft lobe was completely worn done and the camshaft follower was almost worn through.
Also after further inspection, we found that all the camshaft bearing was bad.
After replacing the camshaft, bearing, and cam followers the misfire was gone a VW was running well again.
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Check fuel cap light on in your car or truck? In this video, I go over what you should check first if you have code p0442, p0455, p0456 or a check gas cap light and or a check engine light. Do this easy check before spending any money on repairs.
Fuel Injector Testing Hack P0201 P0202 P0203 P0204 P0302 and this video will be diagnosing a cylinder to misfire where the fuel injector has failed. I’ll also be showing you a cool little hack where you can test for fuel injector signal without a noid light. As always you should you the proper test equipment. You can get noid light test kit on Amazon here: https://amzn.to/2UaVQWP
Also, I wanted to add which I should have mentioned in the video a lot of times when the computer sense has a problem in the fuel injector circuit shut off power to that fuel injector so prior to testing the fuel injector circuit I recommend clearing the computer codes then testing your fuel injector signal. On this vehicle, I found fuel injector bad. Check out The Flat Rate Mechanics Tool Store on Amazon https://goo.gl/M8MpdC Subscribe to my youtube channel here: https://goo.gl/j1pCfn
How to Confirm Your Repair P0171 P0174 System Lean
In this video, I will be going over how to confirm you’re repair after diagnosing a p0171 or a p0174 system lean bank 1 and system Lean Bank 2. And this video will be repairing a vacuum leak and monitoring fuel trim values to verify that the repair was successful using fuel trim values on a scan tool. Just a brief overview of fuel trim used to verify a repair.
How to use fuel trim to make sure you car is fixed after the repair!
You fuel trim numbers should always stay around 0% and if they are adding fuel that would mean your engine is running lean. If your fuel trim is taking away the fuel that means your engine is running rich. #systemlean#p0171 #p0174
iagnosing a bad evap vent solenoid P1444 P0455 P1448
And this video I will be diagnosing a bad evap vent solenoid. We already smoked the EVAP system for leaks once and replaced the EVAP vent solenoid with an aftermarket vent solenoid.
Witch ended up failing two weeks after installation. And this video will show you how to diagnose a bad part and what we found once we remove the EVAP vent solenoid.
Diagnosing a check engine light on a Dodge Charger that has a stored code p000b and p0016 for the variable valve timing control solenoid. Was able to activate rail valve timing control solenoid what scan tool and could hear it click.
So in this case I’m suspecting I slide it up solenoid valve or possible low and dirty oil. Before replacing any parts I would suggest changing oil and clearing codes to see if p000b and the p0016 go away.
Vehicle Application:
2011 300 5.7
2012 300 5.7
2013 300 5.7
2013 Challenger 5.7
2011 Charger 5.7
2012 Charger 5.7
2013 Charger 5.7
2010 Ram 1500 5.7
2011 Grand Cherokee 5.7
2012 Grand Cherokee 5.7
2013 Grand Cherokee 5.7
2014 Grand Cherokee 5.7
2011 1500 5.7
2012 1500 5.7
Customer Concern: No power, runs rough and sets codes P0016 and P000B.
Average Reported Mileage: 129205
Tests/Procedures: 1. Check the Engine Oil quality and quantity.
Check the operation of the Variable Valve Timing (VVT) Oil Control Valve (OCV) with the actuator tests, then check the tip end for sludge build-up.
Check the engine for mechanical problems such as worn bearings, oil pump inlet, oil pump, etc.
Most common cause of a p0101 “Mass Air Flow (MAF) Circuit/Performance Malfunction”?
Code P0101 Definition
Mass Air Flow (MAF) Circuit/Performance Malfunction
Code P0101 Meaning
The mass air flow (MAF) sensor measures the amount of air entering the engine. Check engine light code P0101 is set when the measurement of air entering the engine by the mass air flow sensor is outside of the manufacturer’s specified range.
Symptoms
Engine stalling
Difficulty starting
Lack of power
Rough idle
Causes
Dirty, obstructed, or faulty mass air flow sensor
Damaged or disconnected air intake boot (snorkel)
Vacuum leak
Clogged or improperly installed the air filter
Clogged catalytic converter / restricted exhaust
In this video I will go over and what it means if you have a flashing check engine light. And typically with a flashing check engine light, it means you have a catalyst damaging misfire.
I was working on a Toyota 4Runner in this video and removed and inspected the ignition coil. The computer was setting a P0304 for a cylinder 4 misfire. But any cylinder misfire can cause a flashing check engine light.
If you have any tracking flashing check engine light you should definitely get it repaired immediately due to the damage it can cause to your catalytic converter. And that is because the unburnt fuel is going into your exhaust system. Which can cause your catalytic converter to overheat and be ruined or damaged. A flashing check engine light is typically usually relatively inexpensive repair though. Most commonly involving spark plugs and or a bad ignition coil.
In this video, I’ll show you the most common cause of a small EVAP leak in a 2012 Dodge Grand Caravan. And will also show you where the EVAP system Integrity monitor is located and how to replace it.
I’m noticing a very high failure rate and these evaporative emission systems Integrity monitors. Providing your gas cap is good, and there are no other leaks in the system, that would definitely be the most likely cause of a P0456 in a Dodge Grand Caravan.
Diagnose check engine light sound storage code P0456 small EVAP system leak. Inspected the gas cap, and checked out good. Smoke EVAP system completely for leaks and none were found. also manually tested the purge valve to make sure it was not leaking, and that tested good as well. EVAP system Integrity monitor will need to be replaced.
Vehicle Application: 2012 200 3.6 2010 Town & Country 3.3 2011 Town & Country 3.6 2012 Town & Country 3.6 2010 Town & Country 3.8 2009 Town & Country 4.0 2010 Town & Country 4.0 2010 Grand Caravan 3.3 2011 Grand Caravan 3.6 2012 Grand Caravan 3.6 2010 Grand Caravan 3.8 2010 Grand Caravan 4.0 2010 Wrangler 3.8 2009 Routan 4.0 Customer Concern: Reoccurring check engine light with code P0456 Dodge small EVAP leak. Average Reported Mileage: 82065
Tests/Procedures: 1. Smoke-check the Evaporative Emission System. Remove the Evaporative System Integrity Monitor (ESIM) from the charcoal canister and run the smoke machine into the Evaporative Emission System. Tech Tips: Using a pen laser to shine around the lines and seals while smoke testing may help detect small leaks.
Understanding the P0456 Small EVAP Leak OBD-II Trouble Code: Evaporative Emissions System Small Leak Detected
When the engine control module (ECM) detects a small leak in the evaporative emissions system, it will trigger the P0456 OBD-II trouble code. This code typically indicates a problem with the fuel tank pressure sensor, the evaporative emissions (EVAP) canister, or a damaged or loose fuel cap.
Symptoms of a P0456 Trouble Code
Several symptoms can indicate a P0456 small EVAP leak trouble code, including:
A check engine light appears on the dashboard
Difficulty filling up the fuel tank
A strong fuel smell coming from the vehicle
Reduced fuel efficiency
Fuel leaking
Some Dodges also have a gas cap light
Causes of a P0456 Trouble Code
There are several potential causes of a P0456 trouble code, including:
A faulty fuel tank pressure sensor
A damaged or loose fuel cap
A clogged or damaged vapor canister
A leak in the EVAP system hoses or connections
A bad vapor purge valve
A bad vapor vent valve
The most common problem lies in the mechanical and electrical parts, like the EVAP vent valve and purge valve.
Diagnosing a P0456 Trouble Code
Diagnosing a P0456 trouble code typically involves connecting a diagnostic scanner to the vehicle’s OBD-II port to retrieve the trouble code and any related freeze frame data. This information can then be used to narrow down the potential causes and guide further testing. In most cases, you will need to hook a smoke machine up to the vapor system to check for leaks. It may also be necessary to remove and test the vapor vent valve and purge valve to ensure they are opening and closing and not leaking.
Checking the Fuel Tank Pressure Sensor
One of the first steps in diagnosing a P0456 trouble code is to check the fuel tank pressure sensor. This sensor is responsible for measuring the pressure inside the fuel tank and sending that information to the ECM. If the sensor is faulty or not sending accurate information, it can trigger a P0456 trouble code. An excellent way to check this is by adding pressure to the fuel tank and checking on the scan tool to ensure the pressure sensor changes value.
Inspecting the EVAP Canister and Hoses
Another common cause of a P0456 trouble code is a problem with the EVAP canister or hoses. The EVAP canister is responsible for storing fuel vapor, and if it is clogged or damaged, it can cause problems in the system. It is possible the charcoal inside the canister can come apart and cause debris to contaminate the EVAP system. Similarly, if the EVAP hoses or connections are damaged or loose, they can cause a leak.
Checking the Fuel Cap
A damaged or loose fuel cap can also trigger a P0456 trouble code. If the fuel cap is not sealed correctly, it can allow vapor to escape from the fuel tank, triggering a leak in the EVAP system. Always make sure your gas cap is in good condition and closed tightly.
Repairing a P0456 Trouble Code
Repairing a P0456 trouble code will depend on the specific cause of the code. Some typical repairs include:
Replacing a faulty fuel tank pressure sensor
Tightening or replacing a loose or damaged fuel cap
Replacing a clogged or damaged EVAP canister
Repairing or replacing damaged EVAP hoses or connections
Replaced a leaking or damaged EVAP canister
Replacing a failed EVAP purge or vent valve
Preventing Future P0456 Trouble Codes
To prevent future P0456 trouble codes, it’s important to properly maintain your vehicle and address any issues with the EVAP system as soon as they arise. This includes:
Regularly inspecting the fuel cap for damage or wear
Keeping the EVAP canister and hoses in good condition
Make sure the fuel cap is always securely tightened
Addressing any leaks in the EVAP system as soon as they are detected
By following these guidelines, you can help ensure that your vehicle’s EVAP system is functioning correctly and prevent the P0456 trouble code from appearing again. It’s also important to note that if you are experiencing any symptoms of a P0456 trouble code, you must have your vehicle inspected and diagnosed as soon as possible. Ignoring the problem can lead to further damage to the EVAP system and potentially more costly repairs in the future.
It’s also important to remember that this is only one of the many potential OBD-II trouble codes that can appear on your vehicle. It’s important to be familiar with the different codes and what they mean so that you can address the problem quickly and accurately.
In addition to the steps outlined above, it’s also important to keep an eye on the overall health of your vehicle. Regular maintenance, such as oil changes and tire rotations, can help prevent many problems and maintain your car running smoothly. By following these guidelines and staying vigilant about the health of your vehicle, you can help ensure that your vehicle is always running at its best and minimize the risk of OBD-II trouble codes like P0456.
Overall, the P0456 OBD-II trouble code is an indication that there is a small leak in the evaporative emissions system. By understanding the symptoms, causes, and potential repairs associated with this code, you can properly diagnose and repair the problem and prevent it from happening again. With proper care and attention, you can keep your vehicle running smoothly and minimize the risk of OBD-II trouble codes like P0456 Dodge.
It’s also important to note that while the information and steps outlined in this article can serve as a general guide, it’s always best to consult a mechanic or technician for an accurate diagnosis and repair of your vehicle. They will have the necessary tools and experience to diagnose and repair the problem correctly and can provide you with additional tips and recommendations to keep your vehicle running smoothly.
It’s essential to use quality parts and fluids when repairing your vehicle. Using cheap, low-quality parts can lead to further problems and costly repairs in the future. It’s always best to invest in quality parts to ensure that your vehicle is running at its best and to extend the life of your vehicle.
It’s also important to keep track of your vehicle’s service records and to have regular check-ups to detect and prevent issues from arising. Regular check-ups and service records can also help you identify patterns and trends that may indicate a potential problem, allowing you to address the issue before it becomes a more significant problem.
Understanding and addressing the P0456 OBD-II trouble code is an important step in maintaining your vehicle’s overall health and performance. By being aware of the symptoms, causes, and potential repairs associated with this code and taking steps to diagnose and repair the problem correctly, you can help ensure that your vehicle is always running at its best and minimize the risk of OBD-II trouble codes.
By following these guidelines and staying vigilant about the health of your vehicle, you can help ensure that your vehicle is always running at its best and minimize the risk of OBD-II trouble codes like code P0456 Dodge.
Diagnose check engine light found stored codes p0515 p0627 p0480 p0645 p0481 we’re setting in the PCM. Also, the customer was complaining that the vehicle was not shutting off when he was turned to the off position. I was able to duplicate the problem and found ignition feed to PCM was staying alive when it should have been off. This circuit also feeds all the other circuit for the codes that were setting codes. This vehicle will need the ignition switch replaced. That will fix the vehicle not shutting off and the check engine light.
2005 Liberty 3.7
Customer Concern: The vehicle does not shut off right away. Setting multiple trouble codes, P0480, P0481, P0627, P0645.
Average Reported Mileage: 84579
Tests/Procedures: 1. Repair the ignition switch feed to the Powertrain Control Module (PCM). This circuit should only have power when the key is in the “ON” or “CRANK” position.
Author:
Steve Anderson
Diagnostic Codes
P0480
P0481
P0627
P0645
