As you can see from the subject I have solved all my problems with engine except idle speed. My engine vibrate in idle, and I'am still dealing with it...I have new plugs, wires, air filter, timing belt is finally adjusted ok... I assume that it's result of lower compression on that 4-th cylinder, but I am not sure. Is it most common result of low compression or something else? Also I have noticed that when I disconnect injector plug from that conector engine works almost the same but when I disconnect any other injector engine stops...is that due to 'not working' injector maybe? Car is driven on natural gas and gasoline and idle speed problems are same
thx in advance Tomac