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Derek Werner
Derek Werner, Chevy Technician
Category: Chevy
Satisfied Customers: 137
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.



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.


William Werner