garajizOBD-II code · manufacturer-specific
P1428
EGI Functionality Test Failed
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P1428 mean?
P1428 is defined as “EGI Functionality Test Failed”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Citroen, Diğer, Peugeot: EGI Mini - MAF Failed Open Circuit
Related codes
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This page is general information; an exact diagnosis needs measurements and a technician’s check.