PCM can misinterpret air fuel ratio and coolant temp requiring replacement of the PCM on Honda Accord

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

A Check Engine Light can come on because some models may misinterpret the ratio of air and fuel being burned for combustion. The powertrain control module (PCM) can also misinterpret data from the coolant sensor and set a Check Engine Light. For either condition, the PCM will need to be replaced.

4 people reported this problem
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Honda Accord vehicles with this problem

Average mileage: 96,757 miles
(93,000 - 100,514)

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