Catalytic converters used after 1996 are three-way converters.
When the catalytic converter cakes with deposits or the substrate inside the converter melts due to assorted engine problems, the exhaust gases can't escape efficiently from the engine. Sluggish performance and wick fuel economy Testament backwash in kid cases and engine stalling Testament by-product in maximum cases. Checking and eliminating a blocked catalytic converter, as the practicable effect of driveability problems requires basic labourer tools and the customary local mechanic Testament annex no disputed point with the procedure.
Instructions
1. Authorize the exhaust to gelid. Habitat shove chocks last the rear wheels and lift the front wheels off the ground using the floor jack. Country jack stands under the frame and lower the machine or glassy Motor lorry onto the stands before sliding under the vehicle to daily grind.
Replace the converter if back pressure is more than 1.25 psi at idle.4. Rapidly snap the throttle open and closed while observing the gauge. Replace the converter if the back pressure exceeds 4 psi when the throttle is opened rapidly in this manner. Unplug the sensor's electrical connector. Remove the O2 sensor from the exhaust channel and screw the adapter for the back coercion gauge into the pipe in its place. Attach the rubber hose from the gauge to the nipple on the adapter fitting.
3. Start the engine and observe the gauge. More than 3 pounds per square inch of back pressure indicates the converter is blocked. Pressure at idle varies by manufacturer from between 0 and 1.25 psi but should never exceed 4 psi when the throttle is snapped open.2. Fix the O2 sensor screwed into the exhaust tube or exhaust manifold. In many four-cylinder engines, the oxygen sensor is located in the exhaust manifold and easily accessed from inside the engine compartment.
