Can you drive with a blocked particulate filter?
Can you ignore the DPF light and carry on driving? Technically yes, but we would not recommend it. If you ignore the DPF light and continue driving, the build-up of soot will soon reach a point whereby your car has to enter ‘limp-home’ mode in order to prevent any damage to the engine.
Can a blocked DPF damage the engine?
However, just like any other type of filter, a DPF has a finite capacity. Once it gets clogged up, you will notice your car switching to ‘limp home mode’. This happens because your car is working to prevent any further damage that may happen to the engine. Moreover, it keeps you from potentially over-fuelling.
How does the NOx Trap work in a diesel engine?
Only vehicles that are equipped with diesel engines use selective catalytic reduction (SCR) systems, of which the NOx trap is a component. The typical NOx adsorption system utilizes materials such as zeolite to trap the NOx molecules to prevent them from being released into the atmosphere.
What does a red stop Engine Lamp mean?
Will flash for 30 seconds at key ON if maintenance is due. Malfunction Indicator Lamp (MIL) Lights up to warn the driver to schedule service soon. May light up in addition to other lamps. Red Stop Engine Lamp Indicates that engine must be stopped as soon as it is safe to do so. Flashing Red Stop Engine Lamp
Why is the diesel particulate filter a ticking time bomb?
The Diesel Particulate Filter (DPF) is best described as the “ticking time bomb” in most modern diesels. Similar to EGR problems, the DPF can become clogged up from city driving where the car does not get up to temperature. The whole reason the Diesel Particulate Filter came along was to clean up the diesel car image (Euro 5 Emissions, 2009).
Which is responsible for reductant injection in NOx Trap?
The PCM is usually responsible for reductant injection but there are applications that utilize a separate SCR controller to deliver diesel fuel, diesel exhaust fluid, or some other type of reductant to the NOx trap. This is accomplished with an injector that is electronically controlled by either the PCM or the SCR module.