Check engine light and traction off light on - hissing sound
i don't know what'* up with this
it was running rough and missing the other day so i took it to a shop and got my MAF cleaned which did the trick when i picked it up today, and on the way to work, it started making this hissing noise, so i got out, and looked at the oil filler cap, took it off, the engine died down almost then it went to about 600-700 rpm.. and i put it back on and it'* hissing
the check engine and traction control keeps coming back on and i don't have a clue
please someone help ?
Junk *** 2000 Impala LS, k&n cai, hd trans, etc.
Past: 1995 Bonneville SLE, Adriatic Blue Pearl.