I have an 1998 buick lesabre custom, and everything was fine until i went to accelerate into the main street and It struggled as I presed on the gas. Then, The check engine light flashed on and it was going okay, A bit jumpy as I held on the gas. Got it home, Parked and turned it off... Waited about a minute and started it. It started fine but It was in park and the iddle was jumping a bit and the lights were dimming with the engine. I pressed on the gas, (in park) and reved it up a bit and then it started to chug a bit and then died. And Now it wants to start but wont fire up. Its got plenty of gas, fuel pump engages... Anybody know whats wrong?