2 bar map sensor
Thread Starter
Platinum Supporting Vendor
Joined: Sep 2001
Posts: 3,665
Likes: 341
2 bar map sensor
testing the interest in a 2 bar map sensor for the 05, but it will also work on the 97-04. The calibration of the sensor would not go negative like the current 2 bar GM sensor so you could use it in the LS1B and E40 ECU's. The retail price would be $69.95.
Safety Car
Joined: May 2006
Posts: 4,016
Likes: 93
From: St. Louis, MO
Tech Contributor
The GM 2 bar MAP sensor doesn't have a negative offset. The E40 TBSS I'm driving right now has one.
12580698 is $63.34 shipped from GM Parts Direct.
12580698 is $63.34 shipped from GM Parts Direct.
Last edited by DSteck; Dec 11, 2013 at 05:29 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Platinum Supporting Vendor
Joined: Sep 2001
Posts: 3,665
Likes: 341
Why would they make the baro sensor go 2 bar? Not really asking the question because I know you didn't design it, but odd. Also if it is the baro sensor how do we know it does not have an offset. I don't see it's calibration in any software.
Burning Brakes
Joined: May 2011
Posts: 1,216
Likes: 56
From: Houston Texas
Safety Car
Joined: May 2006
Posts: 4,016
Likes: 93
From: St. Louis, MO
Tech Contributor
How do we know? God invented data sheets.
Safety Car
Joined: May 2006
Posts: 4,016
Likes: 93
From: St. Louis, MO
Tech Contributor
Thread Starter
Platinum Supporting Vendor
Joined: Sep 2001
Posts: 3,665
Likes: 341
The MAP sensor in the cobalt shows an offset but it does not give one for a baro sensor. I do not have any factory Cobalt files to go look and find the baro sensor offset.
Thread Starter
Platinum Supporting Vendor
Joined: Sep 2001
Posts: 3,665
Likes: 341
I would prefer to be dead on. It used to be said to just blow the numbers up at 101KPA and all would be well, but we know that is not the case. Just trying to make a sensor that would be dead on. If there is one that exists that would even be better than me having to spend money to make one.
Thread Starter
Platinum Supporting Vendor
Joined: Sep 2001
Posts: 3,665
Likes: 341
Dsteck,
Don't be smart about it. I am trying to find a solution and you are saying to just go with it. That is just like me telling you to go with the cheap 60# injectors and they work.
My question is where does the offset come from then and have you tested that MAP you are using to see how accurate it is? I don't remeber where I saw the offset on the Cobalt at but I think it was a -3 kpa, do we even need to worry about 3 kpa difference. If I can find a GM cal I will look and see what the cal is on the baro sensor.
Don't be smart about it. I am trying to find a solution and you are saying to just go with it. That is just like me telling you to go with the cheap 60# injectors and they work.
My question is where does the offset come from then and have you tested that MAP you are using to see how accurate it is? I don't remeber where I saw the offset on the Cobalt at but I think it was a -3 kpa, do we even need to worry about 3 kpa difference. If I can find a GM cal I will look and see what the cal is on the baro sensor.
Safety Car
Joined: May 2006
Posts: 4,016
Likes: 93
From: St. Louis, MO
Tech Contributor
Instead of insisting I'm wrong, do your research.
All the Delphi 2 bar sensors use the same internal core element with the same calibration curve. 200kPa linear value, 8kPa offset value.
http://www.powerandsignal.com/Products/Pressure.aspx
Yes, I've tested it. I've tested it on the numerous cars I've tuned. I've tested it my personal TBSS which runs one. I've tested them on my own bench testing equipment that I have built (which is used for verifying my 2.5 and 3 bar sensors). I've done my homework. I'm not a shoot from the hip clown.
Why rely on trying to hunt down a calibration file when you can get the information needed STRAIGHT FROM THE MANUFACTURER'S DATA SHEET.
Sorry if I'm not cheery and bright when somebody repeatedly posts that I'm essentially talking out of my ***.
All the Delphi 2 bar sensors use the same internal core element with the same calibration curve. 200kPa linear value, 8kPa offset value.
http://www.powerandsignal.com/Products/Pressure.aspx
Yes, I've tested it. I've tested it on the numerous cars I've tuned. I've tested it my personal TBSS which runs one. I've tested them on my own bench testing equipment that I have built (which is used for verifying my 2.5 and 3 bar sensors). I've done my homework. I'm not a shoot from the hip clown.
Why rely on trying to hunt down a calibration file when you can get the information needed STRAIGHT FROM THE MANUFACTURER'S DATA SHEET.
Sorry if I'm not cheery and bright when somebody repeatedly posts that I'm essentially talking out of my ***.