ECU mapping and injector testing.

[m_c]

Ah Ah now had I have know that I could have measured it...

But 1.5 PSI is miniscule...

Should there always be pressure at both pipes coming of the DPF?


As for blocking I get confused because if the DPF is blocked how does the engine run at all??

One pipe is before the filter, the other after the filter.
The after pipe should be around atmospheric pressure, as it's essentially attached to the tail pipe.


The DPF will still allow enough gases through, but it'll be choking the engine. As soon as the ECU sees the high differential pressure across the DPF, it'll reduce power to protect the engine and DPF.

I'd be looking at removing the DPF and sending it to someone who cleans them off the vehicle.

 

[AVI_8]

Yes when they get clogged beyond a certain point the re-gen can’t deal with the levels of carbon build up.

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