ok so the car runs like it is misfiring. so we replaced the plugs still has prob. all of the plugs are getting fire so i know it is not the cap or button or the wires but we can unplug no.1 wire and no change unplug 2,3, or 4 and the car about dies. same with the fuel injectors so we replaced no.1 injector and still no change. thought it might be fuel press. due to factory fuel filter so we changed that and it still isn,t fixed i've tried everything i can think of so if anybody can help please do.

 

is timing off, maybe t-belt jumped a tooth? im guessing original motor and not swap engine?

 

oh yea its factory over 200 thou

 

did a compression test today on no. 1 cylinder found out it is a burnt valve.