P1093
Fuel Rail Pressure Low During Power Enrichment (VAG)
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 Cloud Edition
For P1093, DaVinci Deluxe Cloud Edition offers the following ECU map adjustments and software solutions:
- Rail pressure target adjust
- HPFP duty cycle
Need to fix P1093 on your ECU?
DaVinci Deluxe Cloud Edition is professional ECU tuning software trusted by 800+ workshops. From €49.99 (24-Hour Pass), €100.99/month or €1009/year — or test it first with the Real Software Test: €9.99 for 7 days, then €100.99/month unless you cancel in one click.
See pricing Try free