2.5 bar map offset specs

[540sscamaro]

Hi Guys, i am wondering if anyone has the Offset spec and the KPA spec on the 2.5 bar map sencor part #0261230042 (off the sensor) 90423637 (off the bag) this is a GM cobalt sencor i believe

[scdyne]

For2.5 bar MAP sensor 12580698 try this:

MAP Scaler 207.65625
MAP offset 9.00

I think that is right from the factory tune settings for the ION Redline.

[johnv]

Do the 2.5 bar sensors read okay to 20 psi boost on our cars ?

I tried a 3.3bar sensor and it was a waste of money, couldn't tune VE off boost with any consistancy..

[Wasted Income]

^ I want to know this too....time to move up from a 2 bar :shock:

[Meister]

2bar = 29.00psi
2.5bar = 35.259psi

2bar map values I posted in an earlier thread and 2.5bar is used in ZR1 and those values can be found in a stock file. If you need me to post them let me know

[johnv]

just want to know if anyone useing the 2.5 bar sensor has pushed it to 20 psi boost and the sensor reads beyond 2 bar okay.

[nevinsb]

I'm still not sure about the 12580698 MAP sensor (Now 12615136) whether it is a 2 or a 2.5 bar sensor. Anyone know what years they use them on so I can try to find a Cobalt SS tune? I was running 190/8 in my tune, but it still feels off. I'll try the 207/9 when I get home.