I used torque app and an OBD II SCANNER to check the engine timing, i found the timing not stable at idle speed which in my car ranges from 650 to 690 rpm. when i raised the rpm to 1500 the timing was stable and the graph showed a smooth line. I found codes of O2 sensor 1/2 which i am going to replace. Also i found a code for cylinder 1 missfire, so i insulated injector no 1. And the code didn't show again except after extended periods (once every month or so). Also i always hear a tiking sound comming from the front passenger side when i am inside the car. Waiting for your kind replies.

 

Coil.

 

What do you mean by "stable", static?

 

The ticking is part of the evap system. It is supposed to do that.

 

Smooth and not fluctuating