P3897 Saab Auto Trouble Code
P3897 Saab OBD2 may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.
Some problems such as misfires and evaporative emission (EVAP) leaks can be very challenging to nail down. Misfires can be caused by ignition problems, fuel problems or compression problems. The underlying cause might be fouled spark plugs, bad plug wires, a weak ignition coil, dirty injectors, a shorted or open injector, low fuel pressure, a vacuum leak, a leaky head gasket, burned exhaust valve or a camshaft with a bad lobe.
P3897 Saab Possible Solution:
The firing order is an important part of the overall design of the engine and is determined during the design of the engine to eliminate as much engine vibration as possible. If the firing order is changed or adjusted, the ignition from the spark plug is delivered at the wrong time and the engine functions poorly or does not run. The firing order for a particular engine is typically found in the repair manual specific to that model.
P3897 Saab Description For All Models :
- Saab 750
- Saab 9.3
- Saab 9.3 Ii
- Saab 9.5
- Saab 9.5 Ii
- Saab 90
- Saab 900
- Saab 9000
- Saab 9000i
- Saab 900i
- Saab 92
- Saab 9-2
- Saab 9-2x
- Saab 93
- Saab 9-3
- Saab 95
- Saab 9-5
- Saab 96
- Saab 9-7
- Saab 9-7x
- Saab 99
- Saab 9-x
- Saab Aero-x
- Saab Gt
- Saab Mc
- Saab Sonett
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P3897 Saab Trouble Repair :
If your vehicle failed a P3897 Saab test and the P3897 Saab Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature. |
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