have volvo wont start have spark i have checkad compression ok replaced dist cap and rotor brought no 1 piston up to top dead center and checked firing order ok checked for power at ign sw in the run position ok also checked sender for ground on tach replaced oil sender by oil filter which shuts off fuel still no start motor wants to start but when it does it shuts down and sounds like its flooded and runs like its out of time i cant figure it out can anyone out there help thank you