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20/05/2021 8:46 am
Topic starter
Hello world
The car had flashing engine light when it was taken to mechanic. The following is the results found. My question, are these repairs something that a mechanically enclined individual can perform?
Confirmed active catalyst damaging misfires present upon engine idle and rpm acceleration upon vehicle's arrival - Unable to perform test drive on roadway speeds due to severe cylinder misfires occurring.
Retrieved active diagnostic trouble codes: P0137-bank1 sensor 2 voltage, P0301-cylinder 1 misfire.
Monitored oxygen sensor activity/correlation on scanner at engine idle - verified low downstream oxygen sensor data response time, confirmed bank 1 downstream oxygen sensor voltage below manufacturer's specification approximately 415millivolts at engine idle.
Removed intake manifold assembly, Tested cylinder 1 ignition coil on COP tester - confirmed internal electrical failure within cylinder 1 ignition coil.
Removed/visually inspected cylinder 1 spark plug - found excessive fuel fowling/carbon fowling covering electrode.
Cylinder 1 ignition coil has failed - cylinder 1 ignition coil is the root source of the failure and will require replacement. Engine being operated on during cylinder misfires has resulted in over-fueling.
Excessive fuel being added into combustion has fouled out spark plugs/created excess carbon buildup within the induction system and damaged bank 1 downstream oxygen sensor.
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Sorry for the wall of text. I wanted to be thorough. Thank you in advance for any assistance.
1 Answer
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20/05/2021 9:49 am
I would start with the misfire issue. check the topic in the FAQ section.
