Engine Controls - System/Component Tests: Specifications

1992 BMW 325is AutomaticSECTION Specifications
325 SERIES & 525i (M5O ENGINE DME 3.1) RESISTANCE SPECS

Component (1) Ohms
Air Mass Meter (Sensor)
Between Terminals No. 5 & 6 3-4
Between Terminals No. 1 & 5 16,300
Camshaft Sensor 1,300-1,500
Crankshaft (Speed/Position Pulse) Sensor 490-590
Engine (Coolant) Temperature Sensor
9-19°F (13 to 7°C) 8260-10,560
63-73°F (17-23°C) 2200-2700
171-181°F (77-83°C) 290-364
Fuel Evaporation Control Valve 40-50
Fuel Injector 15-17
Idle Speed Actuator (Per Winding) 20-25
Ignition Coil (Primary) 0.4-0.8
Intake Air Temperature Sensor
63-73°F (17-23°C) 2200-2700
117-127°F (47-53°C) 760-910
Throttle Potentiometer (TPS) 4600
(1) Measured at an ambient air temperature of 64-82°F (18-28°C).
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:

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