Vanguard overheat Philippians water release the radiator cap and water all over and ran for a little while longer and then it died and won't start back up now there's no spark why Dodge Caravan 98 v6 3.0

What is your question?

Van was running bad n shop fixed my tail pipe it broke off n shop took off Cadillac converter althoilleahal n welded a pipe on without Cadillac converter n I went got 10 following gas n push on gas which not reving up much as I pushing gas which caused overheating so I pull e it up to water still running I put water in released the rad cap water went all over n I finish putting water closed rad cap n it died n it won't start up no spark to middle plug wire on distributer is it my coil n where is it located at are there single coils on each spark plug or what how do I get the plug wires to come out of each cilinder won't pull off easy is there a trick to getting them off plug wires that is n I was giving a crankshaft position sensor electrical but it was fuse slinky showing 999 on my vans code by turning the keyoff n on three times holding in the two buttons toil it was trip n releasing it goes thru code ect n only has 999 as a code isn't that the end of codes only or it mean somethin

What makes this problem better or worse?

It was running ok but when overheated attershop took off Cadillac converter tho illezgzl n put pipe n welded back on my tail pipe I got 9 blocks to put in gas it over heated n I pulled up put water I. While still running n opens rad cap water went every where then it died n won't start but cranks fine but friends took off middle spark plug off of the distributor cap n it has no spark now won't start I tried fuses n I'm wondering if it's bad coil n is there a co for each cylinder or ? How do I detect which ones bad

How long has your 1998 Dodge Caravan had this problem?

Two days