Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Malfunction Threshold
The ratio of the current EGR flow to the normal EGR flow is 20 % or less for at least 4.5 seconds.
The ratio is derived from the actual and estimated MAP values before and after the EGR valve was opened.
The estimated MAP difference value is shown in the table.
| Engine speed [Engine Speed] | Barometric pressure | |
|---|---|---|
| 52 kPa (15.4 inHg, 390 mmHg) | 101 kPa (29.9 inHg, 760 mmHg) | |
| 1300 RPM | 31 kPa (9.2 inHg, 234 mmHg) | 37 kPa (10.9 inHg, 278 mmHg) |
| 2500 RPM | 14 kPa (4.1 inHg, 106 mmHg) | 22 kPa (6.5 inHg, 165 mmHg) |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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