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re: DPF Problems
Posted on 6/22/12 at 12:27 am to DownshiftAndFloorIt
Posted on 6/22/12 at 12:27 am to DownshiftAndFloorIt
quote:
Flow meter on each side of the filter? Find out what they are both supposed to read. I'm sure somebody out there has figured out what size pipe can be put in place of the filter to get the proper reading at both points to keep it out of regen...
Yeah, that's how it judges the amount of blockage by the soot. I am sure that they have a minimum flow rate that is built into the system. The flow might have to be between two rates for it not to throw a code. I couldn't get a smaller pipe because it would just slow down the air coming into and out of the DPF anyway. They would basically be the same speed. That alone would screw with it
This is a cross section of my DPF. As you can see, it is just a screen that catches the larger soot particles before they hit the DOC(cat). God damn EPA
2
Posted on 6/22/12 at 12:38 am to Hammertime
Are you sure it's a flow meter and not a pressure sensor? Seems like it would make more sense to measure the backpressure and pressure drop across the filter to determine how plugged up it is. If it's a pressure sensor, you could definitely fool that bitch by replacing that filter with a slightly smaller diameter pipe to mimic the backpressure and pressure drop and fool that bitch.
I'm thinking it's got to be pressure sensors. The flow should be constant from the turbo to the tailpipe unless some of the flow is getting diverted somewhere.
Get on the biggest ford forum you can find on the interwebs and ask away. No doubt those bastards have figured out a way to fool that thing with a
I'm thinking it's got to be pressure sensors. The flow should be constant from the turbo to the tailpipe unless some of the flow is getting diverted somewhere.
Get on the biggest ford forum you can find on the interwebs and ask away. No doubt those bastards have figured out a way to fool that thing with a
Posted on 6/22/12 at 7:38 am to Hammertime
quote:
This is a cross section of my DPF
there's your problem. You cut a big hole in it.
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