won't idle sometimes

[chichaw99]

My 99' was doing the same thing, ther was and air leak between the mass air and the throttle body, the crossover tube that runs from the driver side valve cover to the air intake tube had a lose connection. The problem was solved with small black zip ties and hasen't reoocured since, So chech for any lose fittings where air could get in between the T.B and the mass air. If you happen to have your speedo unhooked that would do the same thing as well.

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black 99 GT,cobra hood & nose. offroads flows, 4.10s, fms pullies, pro 5.0, C&L 80mm, K&N, cold air, 13.77 @ 99.87 on cheaters.