Just did a tune up (new plugs, wires, intake and valve cover gaskets, vacuum lines) which required taking the intake manifold off. When I reassembled, had a vacuum leak that tripped a P0401 code. Put some of the old vacuum line back on, solved that problem. But now the EVAP readiness test will not complete. Been driven for about a week, both freeway and city driving. No check engine lights. The car also has an AEM cold air intake installed, but ran fine with it before the tune up.
May 12, 2017 at 9:57 AM
