map sensor question
a 2 bar reads 1 bar vacuum and 1 bar boost=14.7 PSI
a 3 bar reads 1 bar vacuum and 2 bars boost 29.4 PSI.
Cobalt sensor is a 2.5 bar. 22.5 PSI.
Cars with 2 bar's are the GTP's, Buick GN's, and Syclones.
Only car ever made with a 3 bar is the 1989 Turbo Trans Am. And it was used just for the in dash boost gauge.
The lower the bar, the higher the resolution.
a 2 bar reads 1 bar vacuum and 1 bar boost=14.7 PSI
a 3 bar reads 1 bar vacuum and 2 bars boost 29.4 PSI.
Cobalt sensor is a 2.5 bar. 22.5 PSI.
Cars with 2 bar's are the GTP's, Buick GN's, and Syclones.
Only car ever made with a 3 bar is the 1989 Turbo Trans Am. And it was used just for the in dash boost gauge.
The lower the bar, the higher the resolution.
i think the only one that used a 2.5 bar was the cobalt with the blower, not a turbo
Last edited by elias_799; May 13, 2010 at 08:45 PM.


