Fuel Pump Relay

1996 Audi A4 Base, StandardSECTION Fuel Pump Relay
WARNING: This page is about a different car, the 2001 Audi S4 and 2001 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Fuel Pump (FP) relay supplies voltage to the fuel pump as well as several other fuel injection components. ECM grounds FP relay when ECM receives RPM signal. FP relay is located in position No. 4 of micro-central electronics center in driver's side footwell. See Figure .

To test fuel pump relay, see appropriate DTC under DIAGNOSTIC TROUBLE CODE DEFINITIONS in appropriate SELF-DIAGNOSTICS article.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.