I changed my timing belt on my 2000 Tundra over the weekend. 4.7, V8. All the marks lined up right and stayed lined up right after turning it over twice like the Haynes manual says. Put it all back together, start it up and it seems like it's running fine timing-wise, but with a little miss. Barely noticeable at idle and even less noticeable revving about 2500. Took it out for a test run and it's missing bad under load and the check engine light flashes.... I know this is bad. Took it to Auto Zone and they came up with random cylinder misfire (p0300) cylinder 5 misfire (p0305) and cylinder 7 misfire (p307) Am I off on the timing? Or is this just a weird coincidence? I have done other timing belts in the past and anytime they were off--even a notch--the engine ran really bad and sputtered, backfired, etc. If I'm off on the timing how do I get it right when the marks are lined up? Any help would be GREATLY appreciated!!