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EPC light, engine light, multiple misfire cylinders 1,2,3,4

MzMk5

Passed Driver's Ed
Location
Connecticut
Changed the coil packs, Lights in dash turned off for about 4 minutes, rough idle, misfiring, and engine shut off due to rpm dropping so low, lights came back on. Scanned for codes and got something along the lines of ECM and multiple misfire cylinders 1,2,3,4.

Could it be my spark plugs?
A bad control module?
Carbon deposits on valves?
Stuck PCV?
Bad throttle body??

Or maybe my mechanic screwed the wiring up?
I say this because I recently just replaced the engine, old engine timing chain snapped.


Please give me your opinions would be highly appreciated !


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MzMk5

Passed Driver's Ed
Location
Connecticut
What exactly are the codes you are getting?



Not exactly sure, don’t have them readily available to me at the moment, I do remember it scanned for 5 codes. multiple misfires, saw it was in all 4 cylinders not sure what exactly the 5th code was I believe something to do with ECM


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