2007 Saab 93 Aero has the code showing up of P0089 looking for answers on how to fix and turn off the engine light.

SOURCE: saab 93 engine fault codes p1230 and p1260 ?

What? that's crazy! why wont you take advises from several mechanics? this is the best solution.

Marvin

• 85242 Answers
• Posted on Jul 30, 2008

SOURCE: Service engine light on showing

Diagnostic trouble code P0089 - The ECM commands the Bosch high-pressure fuel pump to deliver a specific fuel rail pressure - that can vary up to 23,000 psi depending on load and speed. The actual pressure is monitored via the fuel rail pressure sensor. If the fuel rail pressure varies more than desired or if commanded fuel pump flow is 100mm3/second or less, DTC P0089 will set.

Corrective action includes measuring the fuel rail pressure using a Tech II scan tool, then compare that to commanded fuel rail pressure with the engine running at 2000 rpm. The difference must be less than 20 Mpa.

A blockage in the fuel tank or plugged fuel filter could cause this fault (excessive vacuum in fuel line). If there is less than 5 in Hg of vacuum when measured at the fuel pressure test port at 3000 rpm, the fuel pressure regulator could be defective, and may need to be replaced. The fuel pressure regulator (FPR) is a sub assembly located on the Bosch high-pressure fuel pump.

SOURCE: Saab 93 2.2TID 2003

Is there black smoke coming from the exhaust?

SOURCE: turning off service light on saab 93

Hi,If you press and hold the reset button on the SID unit the message will go out ,however it might come back on a few times so you may have to repeat this for a couple of days till it stays out.

SOURCE: I have a 2008 VW Passat. When the engine light came on I stopped at Autozone and they gave me the following codes: P0089, P0642, P2004. Anyone know what they mean?

CODE 89 IS FUEL PRESSURE REGULATOR 1 PERFORMANCE.CODE 642 SENSOR REFERANCE VOLTAGE CIRCUIT "A" LOW.AND CODE 2004 IS ITAKE MANIFOLD RUNNER CONTROL STUCK OPEN.CK FOR BAD OR MISSING VACUUM LINES.IS IT STILL UNDER WARRANTY