When you conquer a tb42s backfire! HA i could dance im that happy. Only had the car a month and the constant backfiring and rough running was doing my head in but today I finally got rid of it. Turns out it was just one of those simple things, I replaced the spark plugs (which turned out to be nackered) and bam no more backfire! just goes to show that something so small can make a big difference and it pays to start at the top. I know I was stressing hard trying to make it work and im so glad that its good now. Fingers crossed everything stays that way and I can concentrate on some other things.
enjoy the rest of your day ladies and gentlemen