worn piston rings most common problem, but sticking valves, leaking head gaskets can also cause this concern.
sounds like your engine needs a valve job worn piston rings would also cause low compression ,but not cause the backfireing
Maybe a bad valve
Bad are burnt intake or exhaust valve. Pistion rings broken, Burned pistion. Blown head gasket. That is all that would cause no compression are a loss of compression.
The movement of the piston from BDC to TDC.
Defective spark plug, spark plug wire, burnt valve, or blown head gasket. On some vehicles with a coil for each plug, it can be a defective coil. On this particular vehicle, it can only be a spark plug, wire, injector, or low compression in that cylinder.
Most of the times when you have low compression on one cylinder it's an indication that the head gasket is blown. If more than one cylinder has low compression and is hard to start the you most deffinatly have a blown head gasket
High compression is usually caused by either excessive carbon build up, excessive fuel being injected or oil or coolant getting into the cylinder.
Bad plug? Bad wire? Bad piston or valve (do a compression test)
maybe you need a new head gasket?
If it is causing the cylinder to misfire, yes.
A "Bad cylinder" or "dead cylinder" is a cylinder with Low compression psi. Symptoms: rough running low power can cause high oil consumption
A cracked or broken piston will cause a loss of compression, as will cracked or broken rings. The failure of a head gasket will also cause a loss of compression, as will broken, cracked or badly worn valves or valve seats. A crack in the cylinder itself (either the sleeve or the engine block), or a crack in the head itself will cause a loss of compression. A problem with the plug threads or the threads in the head (for engines that have plugs) can cause loss of compression, and injectors (for engines that have them) can leak around the threads, either because the injector threads or the threads in the head have been damaged.