1998 Oldsmobile Alero codes

1998 OLDSMOBILE ALERO
171,101 MILES • 6 CYL • FWD • AUTOMATIC
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LIBR257
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well not to long ag o my car displayed symptoms of a bad maf sensor ad of course the light was on. Then i replaced it and the car rides good. and the light sometimes comes on then goes out intermittenly. i had the code checked and it keeps saying fuel pressure too lean. then the light goes back out .then i had mechanic say that my fuel pressure regulator is going bad.and now thats what im going to replace. please help me through the madness?
Sep 5, 2008 at 5:40 PM
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RASMATAZ
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had mechanic say that my fuel pressure regulator is going

How did he know that-did he hook up a fuel pressure gauge to determine that? Could be the fuel pump itself producing low pressure.
Sep 5, 2008 at 6:06 PM