ok here is the deal i swaped a 93 ls in a 90 crx dx and this fucker backfires could it be my timing or is it something else? stock ls no codes or nothing. i have spent like 300 bucks in my exaust alone and i thought that was it but when i took it back they said it was some thing that has to do with my spark or fuel regulator im lost.
help!
help!