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1999 Saturn SL2 DTCP0171

Tiny
BRADSGARAGE
  • MEMBER
  • 1999 SATURN SL2
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 68,775 MILES
REPLACED FUEL FILTER - FUEL PRESSURE AT 52PSI RUNNING REPLACED SPARK PLUGS & WIRES VALVE COVER GASKETS - CAR CAME BACK WITH P0171 - P0341 - P1599 - P1620 & P0507 - FOUND DEFECTIVE PRESSURE REGULATOR IN PUROLATOR FILTER - REPLACED WITH WIX FILTER & CLEARED CODES - PUT THROUGH DRIVE CYCLE & P0171 CAME BACK CAN NOT FIND ANY VACUUM LEAKS ANY IDEAS?
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Monday, August 2nd, 2010 AT 10:08 PM

1 Reply

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS


https://www.2carpros.com/forum/automotive_pictures/416332_1999_SL2_P0171_1.jpg


With the P0507 code and P0171 code i would say your looking for a vacuum leak especially since you already have the fuel pressure squared away.
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Tuesday, August 3rd, 2010 AT 2:06 PM

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