2001 Cadillac Seville

Engine Performance problem
2001 Cadillac Seville V8 Front Wheel Drive Automatic 97000 miles

I got these codes today, P0507, P0386, P0385, P0106. My car will not keep running its starts but will not stay on. I know 507 is a idle air control, and 106 is a manifold absolute code but what will I need to fix my car. I know I have to buy a new alternator but will that fix everything? Pls help
November 17, 2009.

It all depends on what is current and what is history. P0385/p0386 are crank sensor codes, these are usually synonymous with a stall at stops. If they are hard failures a starting issue may result. The idle air control valves aren't known for failing, the passage could be dirty.

Nov 18, 2009.