I tried it again tonight. Oil was full, 1st gear: Vtec engages, 2nd gear: Vtec engages, 3rd gear: Vtec engages, 4th gear: Vtec doesnt engage and I get a rev limit at 5000rpm. After that 1st, 2nd, 3rd gear didnt engage either. What the hell is going on!!!

Oil level is fine. And if Im on the highway in 5th and I downshift to 4th and the rpm happens to go past 5000rpm, I will get no response from the gas pedal whatsoever until I get back down to 5000rpm....where it just bogs at 5000.

Im fed up of this. What the hell is wrong with my engine. Sorry, Im just venting, any help would be greatly appreciated though. Im really losing my patience here.