P1600 Diagnostic Trouble Code Discussion for July 2009
PCM Battery Backup Circuit Malfunction
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| Help Request | Posted | |
| 1999 Porsche Boxster 2.5L Hesitation, Poor Fuel Economy, MIL Lamp on VIN: WP0CA2980X P1600: Voltage less than 10 volts. Car came in with p1600 and p1123 and p1125 and a k&n. Changed filter and maf because of contamination. Fuel pressure is right at factory specs. Smoked intake found leaking oil fill pipe. Replaced pipe. LTFT was b 1 6% b 2 11% replaced oil seperator at same... |
July 23, 2009 |
