Hi all, Im new to the website. Im having problems with my 97 chevy lumina. 3.1 v6. The problems started with a faulty ignition moodule. I changed that and it went bad again. It wouldnt start hot. I found out a bad crankcase position sensor kept frying my icms. My last icm made the car run so bad it fouled up my catalytic converter and blew the exhaust off the block. I repaired that and replaced the CKP and ICM, now it turns over but will not start. The EGR valve is full of brown thick liquid gunk? I know bad catalytic converters can foul up an egr, is this why it wont start now?