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Derek Werner
Derek Werner, Chevy Technician
Category: Chevy
Satisfied Customers: 135
Experience:  ASE Master Technician, L1 Advanced level specialist
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Neil I have a 2010 chev truck in my shop that has 2 codes.

Customer Question

Hello Neil
I have a 2010 chev truck in my shop that has 2 codes. first one is P0300, and one I have never ran in to before a P219B. Truck is running poorly, and has the check engine light flashing ocasionally
Submitted: 1 year ago.
Category: Chevy
Expert:  Derek Werner replied 1 year ago.

Hello and welcome!

What is the 8th letter in your VIN# ***** will tell me what engine your truck has.

How many miles?

Any abnormal engine noises?

P0300 is a random misfire code.

P219B Fuel Trim Lean Bank 2, most common cause is a intake air leak.

A flashing check engine light, indicates catalytic converter damage can occur.

A lean bank on a engine can cause what is known as a "lean misfire" A scan tool will be needed to read the (LTFT) long term fuel trim reading from the engine.

A common thing that i sometimes find is a disconnected pcv hose that connects to the black intake tube.

Remove the upper engine cover, 1 8mm bolt holds the cover in place. On the passenger side front of the engine there is a black PVC tube that connects to the passenger side valve cover to the intake tube. Make sure the tube is connected to the valve cover and the engine.

Thanks

William

Expert:  Derek Werner replied 1 year ago.

Have i answered all of your questions? I only strive for excellent service.

Please be aware that i will be asking a series of questions to give you the best possible answer. If you have any other questions please feel free to let me know.

Thanks

William Werner