Help! Mini Maxx codes - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 02-21-2011, 06:11 PM Thread Starter
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Help! Mini Maxx codes

New guy here with a mini maxx problem.

Installed tonight with dpf/cat delete and when I started it, it idles fine for 5 seconds, then runs really rough. check engine light is on.

diagnostics on mini maxx:

P0546 EGT sensor circuite high
P2033 EGT sensor circuit high
P242D unknown
P2455 unknown

Any experience with this?
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post #2 of 9 Old 02-21-2011, 07:05 PM
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Make sure you select DPF Deleted when prompted by your H&S Product. If you select DPF Present, you will experience the problems you are seeing now. You can go into the "show settings" menu and view which setting you have selected. If you have selected "present", simply reinstall the download and select "removed".
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post #3 of 9 Old 02-21-2011, 07:09 PM
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The first 3 codes were exhaust sensor banks 1, 2, and 3 and the last code is the DPF pressure sensor. I am wondering if you loaded up the DPF present tunes while having the deletes on. Maybe ......?

2008 Ford F-350
6.4L Power Stroke
Crew Cab Long Bed
Buck Stop Bumper w/
WARN 9500 lbs. Winch
H&S Mini Maxx w/ homemade mount
5" Flo-Pro DPB exhaust w/ muffler
Bilstein 5100s Shocks
AFe Stage II Magnum Force Intake
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post #4 of 9 Old 02-21-2011, 07:09 PM Thread Starter
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Quote:
Originally Posted by krcook View Post
New guy here with a mini maxx problem.

Installed tonight with dpf/cat delete and when I started it, it idles fine for 5 seconds, then runs really rough. check engine light is on.

diagnostics on mini maxx:

P0546 EGT sensor circuite high
P2033 EGT sensor circuit high
P242D unknown
P2455 unknown

Any experience with this?
Ok, I get the "Duh" award for this one. Followed the mini maxx instructions which say to download software to truck before removing DPF, which I did. But I told it that it still had the dpf on, becuase it did. Then I took it off, installed the delete pipe, and just started the truck.

After I figured this out and downloaded the "race" tunes, it ran ok. too icy to go for a drive so I'll need to wait for the to come in a few days.
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post #5 of 9 Old 02-21-2011, 07:11 PM Thread Starter
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Quote:
Originally Posted by H&S Tech View Post
Make sure you select DPF Deleted when prompted by your H&S Product. If you select DPF Present, you will experience the problems you are seeing now. You can go into the "show settings" menu and view which setting you have selected. If you have selected "present", simply reinstall the download and select "removed".
Thanks for the quick reply. That's exactly what happened. My bad. runs ok at idle now, but too icy to test it...
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post #6 of 9 Old 02-21-2011, 07:12 PM Thread Starter
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Quote:
Originally Posted by NVHunter83 View Post
The first 3 codes were exhaust sensor banks 1, 2, and 3 and the last code is the DPF pressure sensor. I am wondering if you loaded up the DPF present tunes while having the deletes on. Maybe ......?
Yep, sure did. Got it figured out now. Thanks!
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post #7 of 9 Old 02-27-2011, 09:18 AM
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Originally Posted by krcook View Post
Yep, sure did. Got it figured out now. Thanks!
KRccok , Would like to here an update on your Mini Maxx results , Hows it running for ya. I've got one ordered and just thought I'd ask

2008 F-350 Looongbed CC 4x4 Mini Maxx S@B C.A.I. Delete Pipe , Custom 2 1/2" leveling kit
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post #8 of 9 Old 02-28-2011, 02:49 PM Thread Starter
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Originally Posted by UPTHECREEK View Post
KRccok , Would like to here an update on your Mini Maxx results , Hows it running for ya. I've got one ordered and just thought I'd ask
Running great. Not sure about mileage yet. Installed it with about half a tank and hand calculated for the whole tank was 14.4 mix of city and hwy. Had been running 13 hand calculated. Filled up Friday night and have done mostly hwy driving 65 mph on cruise and lie-o-meter says 29.7 but too soon to tell what its actually getting. Running the Hot Damn tune most of the time.

Power is unbelievable but I got it mostly for MPG improvement so I don't really get on it much ok, at least after the first few days .

Have experienced the rev/slam issue twice now, at the same point on my drove home at night, going around a sharp curve to the left at 10-15 mph; haven't tried to do a trans relearn and figure it won't help much since I drive it for mpg, not racing.

Only other thing I don't like is the hair dryer sound but as I understand, there isn't much you can do about it. Minor annoyance.
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post #9 of 9 Old 02-28-2011, 04:04 PM
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Thanks for the update .......

2008 F-350 Looongbed CC 4x4 Mini Maxx S@B C.A.I. Delete Pipe , Custom 2 1/2" leveling kit
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