Operation CHARM: Car repair manuals for everyone.

Fuel Pressure

Fuel Pressure Specifications

Control pressure "cold" (equals outside temp.)

1978-85 Models:




Diagram for warm-up regulator Part No.930.606.105.03 Bosch No.0 438 140 054

Control pressure "warm" 3.65 ± 0.20 bar

"Full throttle enrichment" 2.9 ± 0.20 bar

System pressure Testing value 6.0 to 6.7 bar
Adjusting value 6.2 to 6.5 bar

Leak Test
Min. press. after 10 min. 1.6 bar
after 20 min. 1.4 bar

Fuel Injectors Opening pressure 2.1 + 1.1 bar

Delivery rate - Control pressure circuit 160 to 240 cc/min