Expert: Paul Cunningham - 7/23/2007

Question
I drive a 91 Buick Park Ave 3.8 with 200,000+ miles to work 120 miles
every day. Never any problems. I parked it after work the other night and it
hasn't started since. I park on a hill and the gas was low so I though there
may not be enough gas to pump. I've since filled it full and no change. I can
hear the pump humm when I turn the key to "on". All fuses are good. When
starting everything is fine but just won't fire. Battery and starter work fine.
Engine turns over great. Just no start. I haven't checked plugs or wires
because I just don't see them suddenly going bad without running poorly
first.

I'm also getting error codes (58) PASS key fuel enable circuit/ VATS alert and
(66) A/C pressure switch low pressure/ECM fault.

Answer
CHECK YOUR KEY...THE RESISTORS ON IT ARE EITHER DIRTY,OR WORN.
IF YOU HAVE ANOTHER KEY, TRY IT.
THIS IS A COMMON PROBLEM WITH THESE RESISTOR EMBEDED KEYS.
DO YOU HAVE A REMOTE SENDER UNIT? THIS IS A SECURITY PROBLEM...YOUR SECURITY THINKS YOU HAVE STOLEN THE CAR...
IT SHUTS THE IGNITION OFF.
IF ALL ELSE FAILS, TURN THE KEY ON AND LEAVE IT ON FOR 2-3 HOURS.