IDM sensor thing question - Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 22 Old 03-17-2012, 07:09 AM Thread Starter
Compression Ignition Addict
 
Red '97's Avatar
 
Join Date: Oct 2010
Location: Nunn, Colorado
Posts: 840
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
IDM sensor thing question

Alright so i was in town and saw my buddy, when i drove up to say hi he told me to pop my hood so he could show me something. before i know it he had unplugged a sensor with wires leading into it that was located up and to the left of the turbo at the back of the engine bay, against the firewall. he said it was the idm sensor and unplugging it added like 15 horse. now this dude aint that bright when it comes to 7.3s, but still drives one. anyways i go drive around for a bit with it unplugged (dont flame please, i know) and the truck seemed to have a little more power, and dumped WAY more smoke... it also threw a CEL. i shut it off, plugged the sensor back in, and turned the truck back on. cleared the CEL. truck drove4 fine with it plugged in and unpplugged. question is, what is it that the kid actually unplugged, why did the truck respond to it the way it did, and is it really harmful to the engine? thanks in advance!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
-Conner

1997 F-250 Long Bed Extended Cab
--7.3 Powerstroke E40D Auto
--4.10 Rear End
--280,000 Miles
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


-Napa 6637 DIY CAI
-3 inch DP, 5 inch under truck, 6 inch Mitre!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

-2nd gen Wicked Wheel from Dieselsite
-Tony Wildman 6 Position Chip
Broke College Kid Mod
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Now residing in LARAMIE, WY for school at the University of Wyoming! Hit me up if youre around, I'm always down for a hot rodding adventure
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


"Never cut what you can untie"
--Buckaroo Proverb
Red '97 is offline  
Sponsored Links
Advertisement
 
post #2 of 22 Old 03-17-2012, 07:17 AM
Transmission or Injectors
 
lwillson's Avatar
 
Join Date: Jan 2008
Location: Saskatoon, SK
Posts: 743
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Sounds like your MAP sensor (Manifold Absolute Pressure). Was it right above the heater assembly, with a hose going to it?

Its used to measure the air pressure into the engine, essentially measuring boost and ambient air pressure for the computer.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
lwillson is offline  
post #3 of 22 Old 03-17-2012, 10:58 PM Thread Starter
Compression Ignition Addict
 
Red '97's Avatar
 
Join Date: Oct 2010
Location: Nunn, Colorado
Posts: 840
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
that sounds more accurate... the trucks air fuel ratio was definatly different


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
-Conner

1997 F-250 Long Bed Extended Cab
--7.3 Powerstroke E40D Auto
--4.10 Rear End
--280,000 Miles
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


-Napa 6637 DIY CAI
-3 inch DP, 5 inch under truck, 6 inch Mitre!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

-2nd gen Wicked Wheel from Dieselsite
-Tony Wildman 6 Position Chip
Broke College Kid Mod
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Now residing in LARAMIE, WY for school at the University of Wyoming! Hit me up if youre around, I'm always down for a hot rodding adventure
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


"Never cut what you can untie"
--Buckaroo Proverb
Red '97 is offline  
post #4 of 22 Old 03-18-2012, 11:21 AM Thread Starter
Compression Ignition Addict
 
Red '97's Avatar
 
Join Date: Oct 2010
Location: Nunn, Colorado
Posts: 840
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
more input?


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
-Conner

1997 F-250 Long Bed Extended Cab
--7.3 Powerstroke E40D Auto
--4.10 Rear End
--280,000 Miles
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


-Napa 6637 DIY CAI
-3 inch DP, 5 inch under truck, 6 inch Mitre!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

-2nd gen Wicked Wheel from Dieselsite
-Tony Wildman 6 Position Chip
Broke College Kid Mod
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Now residing in LARAMIE, WY for school at the University of Wyoming! Hit me up if youre around, I'm always down for a hot rodding adventure
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


"Never cut what you can untie"
--Buckaroo Proverb
Red '97 is offline  
post #5 of 22 Old 03-18-2012, 11:27 AM
Compression Ignition Addict
 
jesilvas's Avatar
 
Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,148
Thanks: 0
Thanked 27 Times in 25 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews

That it? This is an upgraded one, but you get the idea.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jesilvas is offline  
post #6 of 22 Old 03-18-2012, 11:45 AM Thread Starter
Compression Ignition Addict
 
Red '97's Avatar
 
Join Date: Oct 2010
Location: Nunn, Colorado
Posts: 840
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
ummmmm i think so. its definatly what Iwillson described, the MAP sensor. ill post a pic when i get the chance


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
-Conner

1997 F-250 Long Bed Extended Cab
--7.3 Powerstroke E40D Auto
--4.10 Rear End
--280,000 Miles
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


-Napa 6637 DIY CAI
-3 inch DP, 5 inch under truck, 6 inch Mitre!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

-2nd gen Wicked Wheel from Dieselsite
-Tony Wildman 6 Position Chip
Broke College Kid Mod
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Now residing in LARAMIE, WY for school at the University of Wyoming! Hit me up if youre around, I'm always down for a hot rodding adventure
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


"Never cut what you can untie"
--Buckaroo Proverb
Red '97 is offline  
post #7 of 22 Old 03-18-2012, 12:37 PM
Compression Ignition Addict
 
jesilvas's Avatar
 
Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,148
Thanks: 0
Thanked 27 Times in 25 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
When unplugged, the PCM just sets a default value for the MAP. It must be fairly high, so it fuels more to match the MAP value which is more than what is actually there.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jesilvas is offline  
post #8 of 22 Old 03-18-2012, 01:02 PM
Premium Member
 
baderic03's Avatar
 
Join Date: Apr 2011
Location: rhode island
Posts: 1,000
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via AIM to baderic03
Quote:
Originally Posted by jesilvas View Post

That it? This is an upgraded one, but you get the idea.
That's a boost fooler that is need on a sd with tunes and over 23psi not needed on a obs truck

97 f350single cab auto
4:10 axles spooled front axle
3in down pipe to stack
Intake 6637
140v idm mod
Efuel all built In house
II s475 .90 turbine spool....
Irate T4 304ss up pipes
T500 with gen3 pump
450/400s hush power
Comp built Trans 2100 stall converter
Gearhead tunes

531/1080 on 250/200s


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
baderic03 is offline  
post #9 of 22 Old 03-18-2012, 01:06 PM
Compression Ignition Addict
 
jesilvas's Avatar
 
Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,148
Thanks: 0
Thanked 27 Times in 25 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
Regardless, the location is for the MAP sensor and sensor is back behind there.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jesilvas is offline  
post #10 of 22 Old 03-18-2012, 01:17 PM Thread Starter
Compression Ignition Addict
 
Red '97's Avatar
 
Join Date: Oct 2010
Location: Nunn, Colorado
Posts: 840
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
okay so when i unplugged that, was the truck putting in less air or more fuel? because it smoked a lot more and it seemed to have a bit more power


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
-Conner

1997 F-250 Long Bed Extended Cab
--7.3 Powerstroke E40D Auto
--4.10 Rear End
--280,000 Miles
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


-Napa 6637 DIY CAI
-3 inch DP, 5 inch under truck, 6 inch Mitre!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

-2nd gen Wicked Wheel from Dieselsite
-Tony Wildman 6 Position Chip
Broke College Kid Mod
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Now residing in LARAMIE, WY for school at the University of Wyoming! Hit me up if youre around, I'm always down for a hot rodding adventure
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


"Never cut what you can untie"
--Buckaroo Proverb
Red '97 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome