P219B Code - Fuel Trim Cylinder Balance Bank 2
Quick Answer
The Fuel Trim Cylinder Balance diagnostic detects a rich or lean cylinder to cylinder air/fuel ratio imbalance in each bank. Common causes include Leaking or contaminated fuel injectors, Low fuel pressure or running out of fuel, Exhaust or intake air system leaks. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P219B indicates Fuel Trim Cylinder Balance Bank 2.
- Common causes
- Common causes include Leaking or contaminated fuel injectors, Low fuel pressure or running out of fuel, Exhaust or intake air system leaks.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P219B Description
The Diagnostic Trouble Code (DTC) will be set when multiple samples of the pre-catalyst HO2S accumulated voltage are consistently greater than the desired value.
What are the Possible Causes of the DTC P219B?
- Leaking or contaminated fuel injectors
- Low fuel pressure or running out of fuel
- Exhaust or intake air system leaks
- Faulty Exhaust Gas Recirculation (EGR) system
- Positive Crankcase Ventilation (PCV) system is leaking, or the valve is stuck open
- Ignition system
- Incorrectly seated engine oil dipstick, tube, or oil fill cap
How to Fix the DTC P219B?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P219B code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P219B Buick — Fuel Trim Cylinder Balance Bank 2
- P219B Cadillac — Fuel Trim Cylinder Balance Bank 2
- P219B Chevrolet — Fuel Trim Cylinder Balance Bank 2
- P219B Ford — Bank 2 Air/Fuel Ratio Imbalance
- P219B GMC — Fuel Trim Cylinder Balance Bank 2
- P219B Lincoln — Bank 2 Air/Fuel Ratio Imbalance
- P219B Mercury — Bank 2 Air/Fuel Ratio Imbalance
- P219B Nissan — Cylinder A/F Imbalance Monitoring Bank 2
Frequently Asked Questions about P219B Code
1. What are the common symptoms of OBDII code P219B (Fuel Trim Cylinder Balance Bank 2)?
- Common symptoms include poor engine performance, reduced fuel efficiency, rough idling, and possible stalling.
2. What are the potential causes of OBDII code P219B?
- Causes may include a vacuum leak, faulty oxygen sensor, issues with fuel injectors, a dirty air filter, or a malfunctioning fuel pressure regulator.
3. How can I diagnose the cause of OBDII code P219B?
- Diagnosis typically involves using a scan tool to check for the code, inspecting the oxygen sensor, checking for vacuum leaks, and testing the fuel injectors and fuel pressure.
4. What can I do to repair OBDII code P219B?
- Depending on the root cause, repairs may involve fixing vacuum leaks, replacing the oxygen sensor, cleaning or replacing the air filter, repairing or replacing fuel injectors, or addressing issues with the fuel pressure regulator.
5. Can a dirty air filter trigger OBDII code P219B?
- Yes, a dirty air filter can disrupt the air-fuel mixture, leading to improper combustion and triggering the P219B code.
6. Is it safe to continue driving with OBDII code P219B present?
- It is not recommended to drive with the P219B code as it can lead to further engine damage and potentially unsafe driving conditions.
7. How urgent is it to address OBDII code P219B?
- It is advisable to address the P219B code promptly to prevent potential damage to engine components and ensure optimal vehicle performance.
8. Can I reset the OBDII code P219B without fixing the underlying issue?
- While you can clear the code temporarily, it is crucial to address the root cause to prevent the code from reoccurring and potentially causing more significant problems.
9. Will OBDII code P219B affect my vehicle's emissions?
- Yes, the P219B code indicates an issue with fuel trim balance, which can lead to increased emissions and potentially cause your vehicle to fail emissions tests.
10. How can regular vehicle maintenance help prevent OBDII code P219B?
- Regular maintenance, such as replacing the air filter, checking for vacuum leaks, and ensuring proper fuel system function, can help prevent issues that may trigger the P219B code.
Discuss the causes and fixes for P219B OBDII Code
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Is this typical for an engine that was rebuilt 3 months ago on a gmc 2013 Yukon xl
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I get this code after I drive 200 miles as I did have my intake done since then the engine lights came on .As if I drive around town the light will not come on but if I drive my truck for a long distance it comes on. As I know the code is P 219b
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Intake leak are probably the most common problems that can trigger that code. What model and year is your vehicle? I can check if there is something else.
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My truck crew cab year is 2010 4.8 LT Model is LT as it is the bottom of the line. As I just came home to day and did over 300 miles all was good but as soon as I took it up the 70 for 15 mins the light came on. As the engine light will go off in a few days all by it self.I was going to take it to a Dealership to see if they can help me at all.
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I think so to about the intake, the one thing that I do not under stand is why the light goes off , but the again I know very little about engines.
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Unfortunately there no bulletins, recalls or any history of this problem. My only recommendation is to try using a different gas for a couple of weeks and try a fuel injector cleaner.
Also, have you replace the O2 sensors lately? There is a note on the manual that the system is very sensitive to aftermarket heated oxygen sensor (HO2S) design.
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My truck is a Ls 4.8 with 206.864 KIL year is 2010, as I just Exhaust manifolds fixed as i had 3 broken studs since then the light has been on . As I am no Mechanic i think it is an leak. As I need to heat up the engine for the light to come on.Since it is the winter time it does cool down fast
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I have put better gas in as the Dealership said that is a wast of your money 2 sensors and had it scanded it over 8 times as i have the same code ,so i have put injection cleaner and GS-X as i drove my truck 18 hous south . ASi fi d this sad that GM can sell you a truck but has no idea how to fix my code P219B. As i must be the only person with this Code.
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I did find out two things as number 1 there was no one in CANADA that could help me as this was $1.000 to get it fixed as there was no luck. I do have friends in the USA that work on cars and trucks as the fix was the dipstick as it has been removed . As it was sucking air into the engine block when warm. As the Garage in Canada as they did not replace it right as they did not put any Silicone at the bottom of the dip stick. But thanks to all.
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