P03B7
Generic code
Free on OBD DashX
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See which problems come with P03B7, how often it shows up in other vehicles, and how to fix it — step by step.
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What P03B7 means
- Cylinder 4 Pressure Sensor Circuit Intermittent/Erratic
Possible symptoms
- Check and replace spark plug in cylinder 4
- Inspect and replace ignition coil in cylinder 4
- Clean or replace fuel injector in cylinder 4
- Check and clean the electrical connections in the cylinder 4 pressure sensor circuit
Possible causes
- Faulty cylinder 4 pressure sensor
- Loose or damaged wiring or connectors in the cylinder 4 pressure sensor circuit
- Engine misfire in cylinder 4
- Faulty engine control module (ECM)
- Low fuel pressure in cylinder 4
Possible solutions
- Engine misfires or runs rough
- Loss of power or acceleration
- Rough idle or stalling
- Poor fuel efficiency
- Check Engine Light (MIL) illuminated
Free on OBD DashX
P03B7 on OBD DashX
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