What does fault code ECM-0090 mean?

Diagnostic fault code details for ECM-0090 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C70 (2006–2013)). Repair service at OBD Tuning.

VOLVO

ECM-0090 - Fuel pressure control valve. No signal

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

4 models

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Show models by year and engine (10)

What does this fault code mean?

Although the code is named no signal, it concerns the fuel pressure from the control valve not matching the pressure the engine control module has requested. The usual causes are breaks in the wiring or poor contact, but blocked fuel lines and a damaged valve can also cause it.

Possible causes

Loose connections, contact resistance or oxidation at the terminals
Break in the power supply
Break in the signal wire
Signal wire shorted to ground or supply voltage
Blocked fuel lines
Damaged fuel pressure control valve

What you can do

1With the ignition off, check the connector to the fuel pressure control valve for looseness, contact resistance and oxidation
2Use a multimeter to check that the signal wire to the valve does not break when you move the harness
3The fuel system operates at very high pressure and can cause injury, so have a workshop check the fuel route from the tank, including the filter and pump
4If the fault returns after erasing codes and a test drive, have a workshop replace the fuel pressure control valve

Symptoms you may notice3

Car feels weak or performs poorly, especially at take-off
Engine hesitates, surges or runs unevenly
Warning symbol and text message in the display

What the fault can affect1

Engine speed (RPM) may be limited

General guidance for car owners. Diagnosis on the car can point to a different cause.