Fuel Delivery and Air Induction

FUEL INJECTOR
Resistance between the injector pins 16 ohms

FUEL PUMP
Main pump current consumption [1] early type [2] max. 6.5 amps
Main pump current consumption [1] late type [3] max. 5 amps
Feed pump current consumption 1 - 4 amps

TUNE-UP
Air/fuel ratio 0.6%
Air/fuel ratio limits [4] 0.4 - 0.8%
Timing [5] 12° BTDC
Idle RPM 775 ± 50

[1] At line pressure (300 kPa / 42 psi) and air temperature of 68 °F (20 °C).
[2] With Bosch part # ...022 or Volvo part # 1 306 932-3.
[3] With Bosch part # ...039 or Volvo part # 1 389 449-8.
[4] Check upstream catalytic converter.
[5] Timing can be checked only, no adjustments are possible.