We did a fuel pressure test, it is running around 27psi, before the test we tried out the MAF since the connection on the MAF sensor itself was bad, but it turned out to be ok, we then decided to do some maintenance by changing the fuel filter, and with the test we figured out that it would probably be the fuel pump.
Also I'm thinking about changing the timing belt soon, what are symptoms of worn out belt?, mine seems tight and everything tho. Is it a easy removal/installation!?
also talking about sparkplug, I changed them while changing the Valve cover gasket back in december!