P1093
Fuel Rail Pressure Low During Power Enrichment (VAG)
System: Fuel
Severity: medium
What does P1093 mean?
The DTC P1093 (Fuel Rail Pressure Low During Power Enrichment (VAG)) is a fault code stored by the ECU when it detects a rail low VAG condition in the fuel subsystem. It is commonly seen on European and Asian vehicles using Bosch, Continental, Siemens or Denso ECUs.
Common causes of P1093
- Worn HPFP
- Cam follower wear (VAG 2.0 TFSI)
- Clogged filter
How to fix P1093
CRITICAL on VAG 2.0 TFSI: check cam follower immediately. Then DaVinci tunes for repaired pump.
Tuning approach with DaVinci Deluxe
For P1093, DaVinci Deluxe offers the following ECU map adjustments and software solutions:
- Rail pressure target adjust
- HPFP duty cycle
Need to fix P1093 on your ECU?
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