Volvo C30 T5 Engine misfire,hesitation and difficulty starting.
 

Hi Everyone. I have a 2008 Volvo C30 T5.
I changed the waterpump and timing belt. The car was standing for about a month or so.
After replacing the waterpump and timing belt I took it for a test drive and the car runs terribly.
I have severe hesitation and misfire up to about 3500 Rpm, after 3500 Rpm the misfire is gone and it starts to pull.
After driving the car wont start at all, the motor just keeps swinging over.
The funny thing is if I remove the positive Battery terminal and put it back, the car starts within a heartbeat.
The timing marks are all spot on.
Before resetting the Ecu i Have a flashing check engine light but when Im driving theres no Check engine light or warning lights.
I cannot find the problem ?
Does anyone know what might be causing this ?

did you check for any stored codes?

I Ran the onboard diagnostics,there is codes stored but I dont have access to a OBD scanner. South africa is on lockdown with this whole Covid 19 situation so I do not even have access to a Repair shop or Volvo dealership.