DFI and ECM Discuss all aspects of DFI (Digital Fuel Injection), ECMs (Electronic Control Module), scanners, and diagnostic equipment. Fine tune your Third Gen computer system for top performance.

Does a Differential Pressure Sensor & map sensor look diffrent? I want to make sure I

Thread Tools
 
Search this Thread
 
Old Nov 23, 2006 | 05:57 PM
  #1  
BLACK Z's Avatar
Thread Starter
Supreme Member
25 Year Member
Liked
 
Joined: Jan 2000
Posts: 1,123
Likes: 0
From: jeff NY usa
Car: 86 Z28
Engine: 350
Transmission: W/C T-5
Axle/Gears: 9 BOLT 3.45 POSI
Does a Differential Pressure Sensor & map sensor look diffrent? I want to make sure I

85 86 86 F bodies that where carbed used a Differential Pressure Sensor that is near the brake booster, a lot of people call it a map sensor but it is not does anyone know how to tell them apart? I want to make sure i have the right one.
Reply
Old Nov 23, 2006 | 08:56 PM
  #2  
RBob's Avatar
Moderator
iTrader: (1)
 
Joined: Mar 2002
Posts: 18,432
Likes: 231
From: Chasing Electrons
Car: check
Engine: check
Transmission: check
On the left top front of the sensor there is a 3 digit number stamped into the plastic housing. If comparing GM sensors can check that number. The 2 common MAP sensors used on SD EFI systems are 039 and 460. I don't know what is used for the differential pressure sensors.

Can also check the connector insert color. Most of them are color coded. I've seen blue & red inserts used for baro sensors on CCC cars (non-f-body).

Then green & black inserts on SD EFI cars (039 & 460).

RBob.
Reply
Old Dec 4, 2006 | 06:59 PM
  #3  
BLACK Z's Avatar
Thread Starter
Supreme Member
25 Year Member
Liked
 
Joined: Jan 2000
Posts: 1,123
Likes: 0
From: jeff NY usa
Car: 86 Z28
Engine: 350
Transmission: W/C T-5
Axle/Gears: 9 BOLT 3.45 POSI
Anyone else have any info?
Reply
Old Dec 11, 2006 | 06:27 PM
  #4  
BLACK Z's Avatar
Thread Starter
Supreme Member
25 Year Member
Liked
 
Joined: Jan 2000
Posts: 1,123
Likes: 0
From: jeff NY usa
Car: 86 Z28
Engine: 350
Transmission: W/C T-5
Axle/Gears: 9 BOLT 3.45 POSI
btt
Reply
Old Dec 19, 2006 | 09:49 PM
  #5  
AtomicTruck's Avatar
Member
 
Joined: Aug 2006
Posts: 229
Likes: 0
From: Doghouse
Car: Pro Stadium Tough Truck
Engine: Buick V6 272 cu in
Transmission: TH350
Axle/Gears: Broken most of the time
Here is a link that lists the gm part numbers.

http://www.diy-efi.org/gmecm/compone...o/sensors.html
Reply
Old Dec 21, 2006 | 06:53 AM
  #6  
BLACK Z's Avatar
Thread Starter
Supreme Member
25 Year Member
Liked
 
Joined: Jan 2000
Posts: 1,123
Likes: 0
From: jeff NY usa
Car: 86 Z28
Engine: 350
Transmission: W/C T-5
Axle/Gears: 9 BOLT 3.45 POSI
It does not list th e# or info on the diff pressure sensor.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
92camaroJoe
TBI
32
Jul 29, 2023 07:57 PM
9192camaro
Engine/Drivetrain/Suspension Parts for Sale
16
Feb 3, 2019 12:21 AM
R3500
Engine/Drivetrain/Suspension Wanted
1
Aug 17, 2015 12:16 PM
92camaroJoe
Tech / General Engine
6
Aug 13, 2015 06:07 AM




All times are GMT -5. The time now is 06:13 AM.