P2388: Exhaust Gas Recirculation Sensor E Circuit Range/Performance
What to do
As P2383 — deposits before replacements.
What this code means
EGR sensor E's reading is alive but implausible — soot fouling as the characteristic mechanism, per P2383, with cleaning as the legitimate first-line repair.
Likely causes
Start here
- Faulty EGR position sensor · moderate
- Sensor drifted out of calibration · moderate
Less common
- Corroded or loose connector · easy
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
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