Filter Minder Function? Bypass?
Thread Starter
|
Fleet Mechanic
Joined: Aug 2003
Posts: 1,769
Likes: 95
From: Phoenix, AZ
Filter Minder Function? Bypass?
Just installed the AIS Severe Duty Filter and intake assembly.
Took the PSD out for a run and got the boost up to 20-22 lbs. several times. Checked the filter minder twice and had to reset it both times.
I am running the Diablo chip in the 78hp mode and never had this problem with the original intake box and K&N.
What gives? Too much air flow restriction with the new AIS?
Is the Filter Minder interfaced to the ECM to deafult if it max's out and is not reset?
Any way to bypass the filter minder if it does default or affect performance?
Thanks!
Took the PSD out for a run and got the boost up to 20-22 lbs. several times. Checked the filter minder twice and had to reset it both times.
I am running the Diablo chip in the 78hp mode and never had this problem with the original intake box and K&N.
What gives? Too much air flow restriction with the new AIS?
Is the Filter Minder interfaced to the ECM to deafult if it max's out and is not reset?
Any way to bypass the filter minder if it does default or affect performance?
Thanks!
Laughing Gas
Joined: Apr 2002
Posts: 1,007
Likes: 1
From: Newport News
Not sure what's happening with your truck, but I have mine disconnected completely. I have a Tymar intake and there's no place to hook it up so I have it zip-tied in place next to the filter. No problems so far...and it sounds really cool when I step on it. 
Posting Guru
Joined: Nov 2000
Posts: 1,005
Likes: 1
From: Cincinnati, Ohio
All a filter minder does is tell you how much restriction there is in your intake, or how hard your engine has to "suck" to get the air it needs. Unless it is different from mine there is no connection with anything in the engine computer or fuel management system. As you require more air flow you need to upgrade the filter to handle the increased demands of the engine.
Resetting the filter minder is only ignoring the fact your air restriction is too high. It shows the highest restriction experienced. When you are not running hard you have much lower air flow requirements thus lower vacuum in the intake. It should only be reset when the filter is either cleaned out or changed.
Dave / Believer45
Resetting the filter minder is only ignoring the fact your air restriction is too high. It shows the highest restriction experienced. When you are not running hard you have much lower air flow requirements thus lower vacuum in the intake. It should only be reset when the filter is either cleaned out or changed.
Dave / Believer45
Thread Starter
|
Fleet Mechanic
Joined: Aug 2003
Posts: 1,769
Likes: 95
From: Phoenix, AZ
Thanks,
I checked the owners manual and it stated that the wiring to the "Filter Minder" triggered the dash light.
I'm just going to disconnect it and see what happens
Yeah, you should see the Donaldson filter that comes with the severe duty. Now I know why it has some restriction and costs so much. Huge filter, multiple wraps of some type of material, doesn't look like paper fibre or foam. Very elaborate with a huge rubber seal around the perimeter.
I checked the owners manual and it stated that the wiring to the "Filter Minder" triggered the dash light.
I'm just going to disconnect it and see what happens
Yeah, you should see the Donaldson filter that comes with the severe duty. Now I know why it has some restriction and costs so much. Huge filter, multiple wraps of some type of material, doesn't look like paper fibre or foam. Very elaborate with a huge rubber seal around the perimeter.
Freshman User
Joined: Oct 2002
Posts: 31
Likes: 0
What are you guys looking at? There is no wiring for the filter minder. It is simply a guage in the filtration system to let you know what the restriction level is. You simply reset it by pushing the end of it to release the vacuum. Unless things have changed, I do not know what you guys got going.
Thread Starter
|
Fleet Mechanic
Joined: Aug 2003
Posts: 1,769
Likes: 95
From: Phoenix, AZ
On my "02" PSD there is a two wire switch on the minder that evidently triggers a dash light warning if it is restricted.
I just didn't know if it was somehow also connected to the ECM as well to default the engine to some crappy limp mode or something.
It looks as if it just is connected to the dash warning light only and I'm disconnecting it.
I just didn't know if it was somehow also connected to the ECM as well to default the engine to some crappy limp mode or something.
It looks as if it just is connected to the dash warning light only and I'm disconnecting it.
Freshman User
Joined: Oct 2002
Posts: 31
Likes: 0
Never seen that...I have seen the air temp sensor that controls the cold idle speed but not the filter minder...must have changed after 2000.
Trending Topics
Thread Starter
|
Fleet Mechanic
Joined: Aug 2003
Posts: 1,769
Likes: 95
From: Phoenix, AZ
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
More Turbo
Joined: Oct 2003
Posts: 632
Likes: 15
From: Fairbanks, Alaska
I have never seen one with wires to it but regardless of wiring or not you are getting too much intake restriction. With the stock system the minder will not move until the filter is getting pretty dirty. I am running the TYMAR system on both of my strokes and they never will move the minder even when the filter looks totally plugged. I don't know anything about the AIS Severe Duty Filter and intake assembly but I would say take it back if it is making that kind of restriction. The PSD needs alot of air to operate efficiently and it sounds like this filter is choking it off pretty bad.
Thread Starter
|
Fleet Mechanic
Joined: Aug 2003
Posts: 1,769
Likes: 95
From: Phoenix, AZ
Crumm,
This is the Severe Duty air intake unit that fixes the broken tab and dusting issues the PSD's have had. It is a Motorcraft labeled intake, is made by Donalsdson and maintains warranty.
I am sure it is designed for "stock" programmed trucks and not "chipped" PSD's.
I gues I'll run a tank or two and see what happens to mileage, performance, etc.
This is the Severe Duty air intake unit that fixes the broken tab and dusting issues the PSD's have had. It is a Motorcraft labeled intake, is made by Donalsdson and maintains warranty.
I am sure it is designed for "stock" programmed trucks and not "chipped" PSD's.
I gues I'll run a tank or two and see what happens to mileage, performance, etc.
Senior User
Joined: Aug 2003
Posts: 273
Likes: 0
From: Texas
I used a 4" hole saw to add 5 additional openings on the Ford AIS casing to help increase airflow, it did not seem to make much difference. I just remove the Ford AIS when I run the SCMT program and clamp the Tymar back on.
Thread
Thread Starter
Forum
Replies
Last Post
ExPACamper
1999 - 2003 7.3L Power Stroke Diesel
101
May 18, 2017 03:28 PM
SkySkiJason
1999 - 2003 7.3L Power Stroke Diesel
53
Apr 12, 2012 06:27 AM