Code
P1151
Ford fuel trim
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Most likely causes
- تسرب هواء
- ضغط وقود
Symptoms you may notice
- Check engine light
- Hesitation
- Poor economy
Checks to run
- Smoke-test the intake
- Test fuel pressure
- Check O2 switching
Tools you may need
Smoke machine
Fuel pressure gauge
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.