Mazda 6s - P0300
#1
Mazda 6s - P0300
My fiancé drives a 2005 Mazda 6s 3.0L and its throwing a CEL code of:
P0300 Random/Multiple Cylinder Misfire Detected
Am I correct in assuming the heli-coils and sparks are in need of replacement?
We already had one of the coils replaced that died on us during a road trip, I know it's bad to replace just one but it ended up being a used coil and the mech told us it was bound to fail again in the future.
Thanks in advance for your guys insight!
P0300 Random/Multiple Cylinder Misfire Detected
Am I correct in assuming the heli-coils and sparks are in need of replacement?
We already had one of the coils replaced that died on us during a road trip, I know it's bad to replace just one but it ended up being a used coil and the mech told us it was bound to fail again in the future.
Thanks in advance for your guys insight!
#3
Possible Cause/Causes, as per workshop manual.
• CKP sensor malfunction
• CMP sensor malfunction
• Ignition coil malfunction
• Ignition system malfunction
• MAF sensor contamination
• Excess air suction in intake air system (between MAF sensor and intake manifold)
• Fuel pump malfunction
• Fuel pressure regulator (built-in fuel pump unit) malfunction
• Fuel line clogged
• Fuel filter clogged
• Fuel leakage in fuel line
• Fuel runout
• Poor quality fuel
• Purge control solenoid valve malfunction
• PCV valve malfunction
• EGR valve malfunction
• Vacuum hoses damages or improper connection
• Related connector and terminal malfunction
• Related wiring harness malfunction
• Insufficient compression
• Variable valve timing control system improper (LF, L3)
• CKP sensor malfunction
• CMP sensor malfunction
• Ignition coil malfunction
• Ignition system malfunction
• MAF sensor contamination
• Excess air suction in intake air system (between MAF sensor and intake manifold)
• Fuel pump malfunction
• Fuel pressure regulator (built-in fuel pump unit) malfunction
• Fuel line clogged
• Fuel filter clogged
• Fuel leakage in fuel line
• Fuel runout
• Poor quality fuel
• Purge control solenoid valve malfunction
• PCV valve malfunction
• EGR valve malfunction
• Vacuum hoses damages or improper connection
• Related connector and terminal malfunction
• Related wiring harness malfunction
• Insufficient compression
• Variable valve timing control system improper (LF, L3)
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