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Gasoline injection components | A33
2008 | 2009 Bosch Automotive Aftermarket
Coolant-temperature sensor
Systems:
D, L, LH-Jetronic, K-Jetronic (with Lambda sensor), KE-Jetronic, KE-Motronic, Motronic
Purpose:
The coolant-temperature sensor measures the temperature in the coolant circuit and
provides the electronic control unit with an electric signal. The sensor comprises an NTC
thermistor embedded in a threaded sleeve or a plastic casing. The “coolant temperature”
signal is particularly important for the starting and warm-up phase.
Part number:
0 261 220 ..., 0 280 130 ...
Crankshaft speed sensor
System:
Motronic
Purpose:
A ferromagnetic gear wheel with reference mark (tooth gap) is attached to the crankshaft.
The speed sensor scans the tooth sequence. The electronic control unit uses the signal to
calculate the crankshaft position and speed. Some systems are fitted with two sensors.
Crankshaft position and speed are then measured separately.
Part number:
0 261 210 ...
Electric fuel pumps/in-tank units
Systems:
All systems
Purpose:
The electric fuel pump (EKP) must supply the engine with sufficient fuel at the pressure
required for injection under all operating conditions. The EKP is also increasingly assuming
the function of a pre-supply pump for modern direct-injection systems in both gasoline and
diesel engines. Principal requirements: Delivery rate between 60 and 200 l/h at rated voltage,
pressure in fuel system between 300 and 450 kPa (3...4.5 bar), build-up of primary pressure
as of 50 % to 60 % of rated voltage; cold-starting operation is definitive for this.
Part number:
0 580 254 ..., 0 580 303 ..., 0 580 305 ..., 0 580 309 ..., 0 580 310 ..., 0 580 313 ..., 0 580 314 ...,
0 580 453 ..., 0 580 464 ..., 0 582 980 ..., 0 587 010 ..., 0 986 580 ..., etc.