Jan 8, 2016 · Web2 adapter to the end of the back pressure hose. 3. Install the back pressure gauge assembly into the exhaust. 4. With the engine idling at normal operating temperature, read the gauge to determine the back pressure. The reading should not exceed 1-1/4 PSI. • If the reading exceeds 1-1/4 PSI, the vehicle has restricted exhaust. Stop the test ...

Exhaust back-pressure testing – CarNewsCafe

WebActive regeneration is triggered when the exhaust back-pressure across the DPF is sensed to have reached a first critical point, whereupon the ECU initiates a fuel injection routine designed to increase the exhaust temperature in the DPF to over 600 °C in order to oxidize the particulate deposits. WebAfter finishing the inspection, if you find no other exhaust system faults to cause the problem rather than the exhaust back pressure sensor, perform some testing to confirm … the scarecrows hat craft

P0470 OBD-II Trouble Code: Exhaust Pressure Sensor Malfunction

WebApr 6, 2024 · 480mBar max under load seems a bit high, but remember, the exhaust pressure at the engine before the turbo is typically 1.25-1.50 times the boost pressure with no back pressure in the exhaust after the turbo. While 480mBar is not trivial, it does not sound unreasonable either. WebThe first thing you need is a pressure gauge that can read up to about 20psi. They sell these at auto parts stores and many can read vacuum as well. For exhaust back pressure, I prefer mechanical gauges because … WebApr 6, 2024 · One of the issues with a clogged catalytic converter is exhaust back pressure. This means that the exhaust gases are trapped within the car. Internal combustion engines need the right air-fuel mix to start and run optimally. When a catalytic converter is clogged, the trapped exhaust gases negatively affect the amount of air and … the scarecrows hat story