Questions & Answers for: Pontiac Firebird p0174

Have codes p0170, p0174 and p1518. Car is a 2001 Firebird 3.8 w/ T5. P0170 and P0173 means that the system tried to go outside of the fuel trim limits. Now this can be usually caused by a bad mass ...

...regulator replaced in hopes that was the issue and it didnt work. Its giving a code of P0171 and P0174. Im tired of putting money into stuff that isnt solving the issue. Any ideas on what other ...

1999 Firebird with P0171, P0174, P0300 codes P0300 - random misfire , P0171 & P0174 lean code's . All of this means you could have a bad vacuum leak ,low fuel pressure ,clogged fuel filter , Mass ...