Before testing systems or separate components, it is recommended that you perform all procedures listed in F-BASIC test article. Because many computer controlled and monitored components will change voltage valves and resistance, if they malfunction, also recommended that the diagnosis connector pin check be performed.
Note: Tests of individual components do not isolate possible shorts or opens in the harness of electronic-controlled systems. Use an ohmmeter to isolate the shorts or opens in the harness. All voltage test shall be carried out with a digital ohmmeter (DVOM) volts with a minimum of 10-megohm input impedance, unless specifically indicated otherwise in test procedures.
& Switches sensors ENGINE airflow sensor (Cabriolet & Fox)
1) start the engine pressurized fuel system. Turn off the engine and remove top intake boot to an air flow sensor. Disconnect secondary coil wire from the coil and ground jumper.
Check sensor 2) Play slowly moving through plate travel range with a magnet. Resistance should be heard. Bring dish the rest position. There should be no resistance. If the Association is heard, loosen the bolt hold-down plate sensor and adjust the dish in the center of venturi.
3) If the resistance is erratic, remove the airflow sensor from housing to clean and lubricate lever Assembly. If the resistance is caused by the control plunger, remove and clean the control plunger. If the Association continues, replace the fuel distributor.
4) Check the position of the plate in air flow sensor. Air flow sensor plate edge must be inside. 075 ? (1.9 mm) below the narrowest section of the venturi. See Figure 1. If not, bend the spring sensor until the correct specification. Make sure there is a small gap between the sensor and the control plunger.
No comments: