Actually, i went away for few weeks and since i came back, car starts every time but with rpms going up and down...
What i did so far;
Checked lines for cracks and possible vacuum leak
Reconnect ECU harness, TPS, MAP and MAF sensor, O2 pre cat sensor, temperature sensor, crank shaft sensor and any possible connectors i could see...
I cleaned throttle body
Checked PCV valve
Checked ground from battery to the engine
My next step;
Just ordered OEM spark plugs, intake and throttle body gaskets.
BTW. All this happened about month or two after tune up (from some local shop)
Edited; i was reading somewhere, that over tightened intake manifold and throttle body can cause some leaks and floating RPMs. 20ft lbs for manifold and 89ft lbs for TB...
Last edited by Vrso2; 05-02-2019 at 02:35 AM.