Fuel Pump

WARNING: This page is about a different car, the 1993 Audi 90 and 1993 Audi 100. However, it is still accessible from the selected car via links, so may be relevant.

FUEL PUMP PERFORMANCE

Function

Value

System (Pump) Pressure

55-61 psi (3.8-4.2 kg/cm² )

Residual Pressure ⁽¹⁾

Engine Cold

32 psi (2.2 kg/cm² )

Engine Hot

44 psi (3.0 kg/cm² )

Fuel Injector/Injection Rate ⁽²⁾

2.9-3.4 oz. (85-100 ml)

Idle Speed

700-800 RPM

CO Content

0.3-1.2% Of Volume

⁽¹⁾	After 10 minutes.

⁽²⁾	Per 30 seconds of operation.