Ecu Messed Up My Timing?????

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MY TIMING HAS SLIPPED 6 Times in a row on a LSV
im using a NEW LS water pump, tensioner, and belt on a P28 ECU
i corrected my timing jumped in gunned it after it was warm shifted in to second let off and it went down to 500 (HUNDRED) rpm and ...AND I wonder if it is my ecu because my gas pedal feels like it doesnt want to give it any more juice just put it this way I can punch it in 3rd gear and it takes at least a good 15 seconds to actually accelerate and it accelerates very slowly what do you think it is
also i disconnected my vtec solenoid and my computer did NOT throw codes isnt it supposed to ? Do you think its fried and what do you think is making my belt skip do you think if i changed my ecu my timing wouldnt skip and my power would be back to normal PLEASE HELP
I DONT WANT TO BLOW I JUST BUILT IT A MONTH AGO
if u can reply @ [email protected]