turbo during regen

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May 29, 2008 | 06:48 PM

phill1060

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turbo during regen

I have noticed that when I am on the Highway in regen mode my turbo kicks down to less than 5 psi and I get a little bit of wierd turbo noise. Does regen adjust the vanes to provide less air to the engine so that more fuel is fed into the DPF?

May 29, 2008 | 08:44 PM

Bigskyduty

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Ive had the same exact thing happen to me, I hope someone will chime in and say its normal.

May 29, 2008 | 10:58 PM

versitek

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I think it is a norm on the job 1s. The job 2,3s are a little different from what i have gathered. My boost is all over the place when in regen, and is a job1.

May 30, 2008 | 12:29 AM

gopedoligist

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Joined: Feb 2004

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From: Aromas, CA

my boost doesnt change (job 2), it just drops to 10 mpg!!!

May 30, 2008 | 11:23 PM

phill1060

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I don't get a message on my console to indicate when in regen mode....I must have the job1 program ...but my truck was built during the job 2 time frame hmmmm

May 31, 2008 | 07:07 AM

rmosso1

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From: MACON, GA

Quote:

Originally Posted by phill1060

I do not believe the 6.4 uses the vane turbo (s). I copied the following from a Ford web site:

Dual Sequential Turbos

The high-pressure Electronic Variable Response
Turbo (EVRT

®) spools up first to provide fast
transient engine response. The low-pressure
turbo provides added airflow at peak power

and torque.

Seems logical though, that if you reduce the air, dump more fuel, the fuel will go to the dpf and burn out the pollutants. Easy enough to say, but probably a zillion functions controlled by the computer to make it happen. AND, it seems if the exhaust valves are not in perfect sequence fuel could get into the crankcase which is a known problem with the 6.4.