A diagnostic testing apparatus for testing an automotive IAC motor normally controlled by pulse signals from the electronic control module (ECM) of an automotive electrical system, which apparatus is coupled between the ECM and the IAC motor circuits and provides first circuits re-establishing a ...
22.DRV Pressure regulating valve forced air cooling system. 23. Forced injection cooling system of electric control fuel injector. 24. The independent pressure supply system of the electric control common rail fuel injector is separated from the main drive motor. 25. Provide test oil forced oil ...
1) Exhaust system can be checked using a vacuum or pressure gauge. Remove oxygen sensor or air injection check valve (if equipped). 2) Connect a 1-10 psi pressure gauge, and run engine at 2500 RPM. If exhaust system backpressure is greater than 1 3/4-2 psi, exhaust system or c...
Remember that vacuum levels are also affected by factors other than exhaust system restriction including valve and ignition timing. Backpressure Testing If a vehicle fails the engine backpressure vacuum test, you can pinpoint the component in the exhaust system causing the concern by measuring...
8 channels oscilloscope for vehicle testing. Over 80 types of automotive diagnostic function(Ignition/Sensor/Bus detection/Performe/Starter and charging circuitsetc.). Video Help Function, provides the video help of diagnostic which can be watching online, ...
The smaller thermostat bypass valve is open and the coolant circulates through the bypass tube within the engine and through the vehicle's heating system. This allows the engine to warm up faster.Thermostat is open: As the engine warms up closer to the operating temperature, the thermostat ...
air conditioning or automatic climate control. Move selector lever into position "P". 3 Read out DTC memory. Note: Not available on model year 1984-1986. 4 Connect testers: oil remote thermometer (018)124 589 07 21 00 lambda control tester (012) twin socket (031) trigger clamp (011) ...
in the engine vacuum line connected to the PCV valve. The DC manifold vacuum sensor 110 may be a VIATRAN Model 218 with a range of ±15 PSIG inserted in the same vacuum line. Each sensor provides a voltage signal indicative of the sensed pressure on lines 112, 114 to the control system...
Normally what happens, at ECU pin A14, it is at 0v at idle, then the driver moves his foot .020″ (as measured at TB TV valve) and the idle controls are ended (canceled fast it must). If not, all hell breaks loose with the driver (Max Surge) This is why we use the all 3 ...
Opening the EGR valve with a scan tool should cause the idle to become unstable and rough. An engine might even stall. Closing the valve fully with a scan tool should return the engine to the stable idle speed. In a diesel engine, opening and closing the EGR valve with a scan tool or...