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Honda
Accord
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PCM update to fix misfire and false CEL on Honda Accord

Problem Description and Possible Solution

The PCM can misinterpret misfire data and set a false Check Engine (MIL) light requiring a PCM update to repair.

Problem Data
RepairPal Verified
Average mileage: 102,800 (37,000–140,000)
Exhaust & Emissions affected: 3.0L V6
6 model years affected: 2000, 2003, 2004, 2005, more2007, 2012
10 people reported this problem
Comments
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Car shows misfire codes it will start if cold but if warm and driving then stop turn off leave for short period and return it will not start u have to hold gas pedal down rev Rpm's to start it and then it still idles weird
Car shows misfire codes it will start if cold but if warm and driving then stop turn off leave for short period and return it will not start u have to hold gas pedal down rev Rpm's to start it and then it still idles weird
Engine misfire...diagnosed by autozone. Code p302. Engine started to hesitate and miss shortly after gas fill-up. Changed spark plug and ignition coil on number 2 and all was well after that.. happened again at 72,00 miles. Hate this car and would never again own a Honda.