MAP sensor info needed
Thread Starter
Instructor
Joined: May 2009
Posts: 110
Likes: 1
MAP sensor info needed
today i went to the local parts stor to pick up a MAP sensor plug end(pig-tail).Thay didn't have any but thay were puzzeld about the discription. On there computer thay list ( with or without differental press).
I have a 93 40th ann. lt1 
I have a 93 40th ann. lt1
Last edited by demon seed; Jun 2, 2009 at 11:42 PM.
Burning Brakes
Joined: Feb 2000
Posts: 824
Likes: 2
From: Camden SC
"These sensors are of two types: absolute and differential."
"An absolute sensor compares intake manifold pressure to a reference pressure sealed inside the sensor. This type of sensosr is used for MAP and BARO sensors."
"A differential sensor compares intake manifold pressure to atmospheric pressure pressure. This type of sensor is used for VAC sensors."
Footnotes: Page 4-5-Service Technology Group Publication16016.05-2-Fundamentals of Computer Command and Control.
You may want to consider heading for GM dealer as they should have the exact part number and you would not have to differentiate between the two. My 90 uses the MAP style. I am not sure what style your model year uses however if you have a Factory Service Manul, you can find out.
Good luck with your repair. NAPA stores sometimes has the correct molded fittings for C4 electrical.
"An absolute sensor compares intake manifold pressure to a reference pressure sealed inside the sensor. This type of sensosr is used for MAP and BARO sensors."
"A differential sensor compares intake manifold pressure to atmospheric pressure pressure. This type of sensor is used for VAC sensors."
Footnotes: Page 4-5-Service Technology Group Publication16016.05-2-Fundamentals of Computer Command and Control.
You may want to consider heading for GM dealer as they should have the exact part number and you would not have to differentiate between the two. My 90 uses the MAP style. I am not sure what style your model year uses however if you have a Factory Service Manul, you can find out.
Good luck with your repair. NAPA stores sometimes has the correct molded fittings for C4 electrical.
Last edited by dlmeyers; May 20, 2009 at 08:28 AM. Reason: Add infor
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
EFI connection is great to deal with and quick.
http://www.eficonnection.com/eficonn..._pigtails.aspx
Give them a call, very knowledgable.
http://www.eficonnection.com/eficonn..._pigtails.aspx
Give them a call, very knowledgable.
Burning Brakes
Joined: Aug 2001
Posts: 797
Likes: 2
From: Westminster MD
I haven't bought from them, but I've been debating replacing mine and found this source as well: http://www.bmotorsports.com/shop/pro...roducts_id/457
On mine, the retainer tab is the only thing broken - transferring the pins to a new shell would, I think, be a better choice than splicing the harness at least in my case. If the pins or wiring are otherwise damaged the pigtail may be a better choice.
FYI, the local stealership can get them, and wants around $35 for one.
On mine, the retainer tab is the only thing broken - transferring the pins to a new shell would, I think, be a better choice than splicing the harness at least in my case. If the pins or wiring are otherwise damaged the pigtail may be a better choice.
FYI, the local stealership can get them, and wants around $35 for one.
Thread Starter
Instructor
Joined: May 2009
Posts: 110
Likes: 1
Thanx thats more info than i expected.YOU GUYS ARE AWSOME.
The parts guy showed me pics of the plug ends one was black and one was green!! Mines GREEN you dont think it would be that easy do you guys. Ill still check with the local goons at GM i was just courious.
The parts guy showed me pics of the plug ends one was black and one was green!! Mines GREEN you dont think it would be that easy do you guys. Ill still check with the local goons at GM i was just courious.
