Buick 2000 lasabre got fuel and spark but car won't start , plugs wet when i take them out. engine cranks fine,changed map sensor didn't help.

I would test injector's power and grounding circuit especial . The PCM - engine computer gives a ground for the injectors threw a transistor inside the PCM .There are videos on youtube show how to do this . One bad injector wouldn't cause a no start ! GM had bad injectors some time in the past , know rember when . http://norcal-cobras.com/GTM/gm-tech-lin... I would test injector's power and grounding circuit especial . The PCM - engine computer gives a ground for the injectors threw a transistor inside the PCM .There are videos on youtube show how to do this . One bad injector wouldn't cause a no start ! GM had bad injectors some time in the past , know rember when . http://norcal-cobras.com/GTM/gm-tech-link/7_01_e.pdf

When it won't start i would also check to see if there is spark. Pull both plug wires off of a coil an crank the engine , do you see spark jump from one coil tower to the other !Also , does it have a Mass air flow sensor ? When it won't start i would also check to see if there is spark. Pull both plug wires off of a coil an crank the engine , do you see spark jump from one coil tower to the other !Also , does it have a Mass air flow sensor ?