DTC P0336 without solution ...

Cordial greeting, I have an Optra Limited black lid, which leaves me intermittent the pulse of coil 1 and 4 as if it were welding with an electrode, the engine is difficult to turn on, in doing so they are failing cylinders due Coil, and Rich Crown so far I have not obtained a solution, another computer, CKP, CMP, coil ... Any opinion I will be grateful ... will also be proven ...

Hello. The P0336 code is not easy to solve .... it indicates that the ECU does not like the signal or rando of the CKP. In general, such failure can be diagnosed with oscilloscope and experience. SL2