Answer
Nov 03, 2022 - 08:44 AM
Hello!
It's unlikely that the ECM is bad - most likely the fault is triggered once the spark plug is fouled. How long does it take to start running poorly after you replace the spark plug? Does it smoke when the engine is cold? How fast is it consuming oil? I would recommend replacing the valve guide seals to avoid further damage.
Mitchell D
ASE Master Automobile Technician
Certifications: ASE-Certified Master Automobile Technician, SFI-Certified Safety Inspector
>>> Right Parts, Right Now at CarParts.com
It's unlikely that the ECM is bad - most likely the fault is triggered once the spark plug is fouled. How long does it take to start running poorly after you replace the spark plug? Does it smoke when the engine is cold? How fast is it consuming oil? I would recommend replacing the valve guide seals to avoid further damage.
Mitchell D
ASE Master Automobile Technician
Certifications: ASE-Certified Master Automobile Technician, SFI-Certified Safety Inspector
>>> Right Parts, Right Now at CarParts.com
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