1. diagnostic equipment to check the health condition of the catalytic converter is costly and very difficult to use. If you suspect drive failures, drive away the car to check the workshop. 2. Whenever the vehicle for any reason, rise above the earth, the converter inspect for signs of mechanical damage, traces of corrosion and leaks. Check the condition of the welds and the reliability of a tightening flange bolts fastening the device to the sections of the exhaust system. A defective catalytic converter must be replaced. 3. Despite the reliability of the design converter, there is a fairly high probability of blockage. The simplest way to check the patency of the converter is to check with the gauge:
a) Connect a vacuum gauge to the intake manifold vacuum source (see. Part of the total overhaul of the engine the Head of engine); b) Warm up the engine to normal operating temperature, move the selector lever to position "P" (AT model), or turn neutral (models with Manual transmission) and cock a lay brake; c) Consider the testimony of the gauge at engine idle speed; d) Open the throttle, raising the engine speed to 2000 rev / min; e) expedited release valve and read the gauge; f) Repeat the test three more times, each time recording the result; g) If the result of the fourth dimension is more than 2.5 mm Hg. Art. below shot at idle readings, therefore, it is probable patency converter or exhaust pipe. |