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Ted G.
Ted G., ASE Certified Technician
Category: Chevy
Satisfied Customers: 6107
Experience:  20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
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I didnt check plug and coil yet just got error code po300

Customer Question

I didnt check plug and coil yet just got error code po300 and po526 could that mean something else
Submitted: 2 years ago.
Category: Chevy
Expert:  Ted G. replied 2 years ago.
Well the P0300 simply means the computer sees a random misfire. This could certainly be due to a failure of plugs or coils. The P0526 is most likely related to chafed wires at your cooling fan, there is an updated part to repair that.