Why does my Maxima have a misfire on coil?
Because you need to replace it.
You locate the cause of the random misfire and take corrective actions against that; be it a coil, plug, wire, coil boot or crank sensor. A random misfire is as it states - a misfire that happens randomly in possibly a random cylinder as well. They can be hard to diagnose, as well and it is recommended that you take vehicle to a qualified, ASE certified shop for diagnostics.
P0300 Diagnostic Code - Random Misfire Symptoms. Engine may stumble or miss Engine may be hard to start you may notice no issues Cause Failing spark plugs or spark plug wires Bad coil or coil pack Failing oxygen sensor(s) Bad fuel injector or more than one Stuck exhaust valve Bad catalytic converter EGR valve or valve passage clogging Bad camshaft position sensor Bad PCM or ECM The Fix Best first action is a tune up…
: according to my code scanner book, P1300 is GM-specific for "Ignition Coil #1 Primary Feedback Circuit". P1305 is for coil#2, P1310 for coil #3, etc. : I'm getting a P1301 right now, along with a P0301, cyl#1 misfire. So I'm guessing that the P1301 is also related to coil/misfire issues and am going to replace that coil and see if it helps.