Lost on the MAP
06-17-2015, 09:59 PM
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Lost on the MAP
So, I have read a bunch about the MAP sensors on the site and other places. I'm still pretty confused about what I need to do.
First, I need to replace my MAP sensor. Previously I got the MAP BARO code only when the weather was muggy and it was about to rain. I got a tune (HP Tuners) and am running 23psi boost. Since then I have been getting the code more frequently.
I have read that the stock sensor is only good to 21psi and that there is a 4 wire sensor but not sure if it's needed. If I will need to change the tune if I do get one, and how I would even wire it. Any links or information would be appreciated.
2010 LNF TC SS
EDIT:
Instructions for 4 wire MAP http://www.crateenginedepot.com/pdfs/frsp19212711.pdf
MAP sensor: http://www.crateenginedepot.com/3-Ba...97-P10930.aspx
Plug: http://www.bmotorsports.com/shop/pro...oducts_id/1626
Reading this thread: https://www.cobaltss.net/forums/2-0l...ensors-244938/ I haven't figured out what psi is the max on stock sensors.
First, I need to replace my MAP sensor. Previously I got the MAP BARO code only when the weather was muggy and it was about to rain. I got a tune (HP Tuners) and am running 23psi boost. Since then I have been getting the code more frequently.
I have read that the stock sensor is only good to 21psi and that there is a 4 wire sensor but not sure if it's needed. If I will need to change the tune if I do get one, and how I would even wire it. Any links or information would be appreciated.
2010 LNF TC SS
EDIT:
Instructions for 4 wire MAP http://www.crateenginedepot.com/pdfs/frsp19212711.pdf
MAP sensor: http://www.crateenginedepot.com/3-Ba...97-P10930.aspx
Plug: http://www.bmotorsports.com/shop/pro...oducts_id/1626
Reading this thread: https://www.cobaltss.net/forums/2-0l...ensors-244938/ I haven't figured out what psi is the max on stock sensors.
Last edited by Grimor; 06-17-2015 at 10:09 PM.
06-18-2015, 04:49 PM
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That was my main concern, what would the effect be going with the new sensors and needing to wait for the tune? The sensors already throw a code so would it be any different?
06-21-2015, 01:50 AM
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I could be wrong so if anyone knows please correct me, but the Map Baro sensor should be measuring barometric pressure as a baseline that it needs to subtract to reach the desired boost level. So I think that is a different sensor then the MAP sensor on the intake manifold or the MAP sensor on the lower charge pipe. I believe that sensor only measures outside atmospheric pressure.
06-23-2015, 02:16 PM
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I could be wrong so if anyone knows please correct me, but the Map Baro sensor should be measuring barometric pressure as a baseline that it needs to subtract to reach the desired boost level. So I think that is a different sensor then the MAP sensor on the intake manifold or the MAP sensor on the lower charge pipe. I believe that sensor only measures outside atmospheric pressure.
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