I recently bought a 94 LS automatic and used it for about 1 day and as I'm leaving my job the day after I bought it, It wouldn't start. I got it towed to my mechanic and I went over his house today told me he had changed the distributor he thought was causing the problem but it still won't start. Now we changed the spark plugs and it still won't start, the fuses are all good and there is plenty of gas (full tank to be exact), Timing belt is good and everything else is perfect but it still won't start. Any ideas as to what this can be? thanks.