I have a 2005 Honda Accord ex v6 6 speed ,I have,bought from copart, it said run and drive on it. I have a problem with the car starting, I put new spark plugs in the car and a new battery due to old one being dead . The car would crank and start in the morning but would idle very low then stall, then it would not turn over again, just keeps cranking. I seem to have spark , fuel , and air. I have removed the exhaust before the catalytic converters and the car would start and idle on its own ,only on the first start. I performed a compression test on the 3 front visible cylinders and I got 25 psi. I have no check engine lights
any ideas what could cause ?