Specifications and description of the engine management system Common parameters Voltage l-probe, V Open circuit 0.1÷0.2 Closed circuit 0.1÷0.9 Crankshaft Position Sensor/TDC Resistance (TFR/TDC), Ohm 1850÷2450 Piston position sensor resistance (CYP), Ohm 800÷1500 Layout of engine...
Removal and installation of PCM/ECM Warning! The car models covered in this manual are equipped with an additional security system (SRS). Before doing any work near the airbag unit, steering column or instrument panel, turn off the SRS to avoid injury if...
Checking the condition and replacing the throttle position sensor (TPS) Examination 1. TPS is mounted on the throttle body and connected to the throttle shaft. Based on the analysis of the signals from the TPS, the PCM determines the exact current position of the damper, due to the degree...
Checking the condition and replacing the piston position sensor (CYP) Examination 1. The CYP sensor is used to determine the current position of the pistons. The information it provides is used to determine the fuel injection sequence. The sensor is built into the ignition distributor...
Checking and Replacing the Electrical Load Monitoring Detector (ELD) Examination 1. The ELD system detects signs of overload in the electrical circuits of external lighting and signaling systems, fuel injection, charging, etc. The first symptom of this kind of overload is a violation of...
Checking the condition and replacing the oxygen sensor (λ-probe) The λ-probe located in the exhaust tract of the engine monitors the oxygen content in the exhaust gas stream. When O2 molecules come into contact with the sensitive element of the probe, the sensor generates an...
Checking the condition and replacing the knock sensor Knock sensors respond to an increase in engine vibration, usually caused by detonation of the air/fuel mixture. Based on the information received from the sensor, the PCM corrects the ignition timing, trying to maintain...
Checking the condition and replacing the vehicle speed sensor (VSS) The VSS is mounted on the transmission case and is a variable magnetic resistance sensor that begins to generate voltage pulses as soon as the vehicle speed exceeds 4.8 km / h (3 mph). The pulses from the sensor are...
Controlled crankcase ventilation (PCV) PCV system (see accompanying illustration) serves to reduce the emission of hydrocarbon compounds into the atmosphere due to the removal of crankcase gases from the engine. The unit is purged by forcing fresh air coming...
Exhaust gas recirculation (EGR) system — general information and check General information In order to reduce the emission of nitrogen oxides into the atmosphere, the engine design provides for the removal of part of the exhaust gases into the intake pipeline through the EGR valve. This...
Catalytic converter — general information, check and replacement Note. To avoid voiding your warranty on emission control system components, have the catalytic converter inspected and serviced at an auto repair shop. General information The catalytic converter is a component of...