I saw only 1 single post on that, and no solution.
- inb4 '' get rid of jb4'', yeah , but not yet. Work fine for my needs.
Issue : Ive noticed 48°F iat @ 27psi on a 5.5'' stepped IC. Quite low !
I've added a external boost gauge and BINGO ; it read 22 psi, while JB4 read 28psi (peak) !
reached Terry, he doesn't know.
He told me to put TMAP :
- Setting to 1 : No , I ve a check engine and a 7.8psi readin on IDLE !
- setting 2 : same behaviour
- Setting to 3 : bingo, idle reads 0psi ( or vacuum) , but Ive a +/- 5 psi offset
ONLY 1 person reported Setting 3 did the trick, but he never validate the REAL boost pressure !
Any way to ''calibrate'' it?
here Setting 1 at idle :
- inb4 '' get rid of jb4'', yeah , but not yet. Work fine for my needs.
Spec : N54 , ST, MHD BEF, Maps on JB4 G5 (lasted ST firmware), 3.5 Continental TMAP N20 w/ wiring reversed order , BMS 600CC meth kit.
Issue : Ive noticed 48°F iat @ 27psi on a 5.5'' stepped IC. Quite low !
I've added a external boost gauge and BINGO ; it read 22 psi, while JB4 read 28psi (peak) !
reached Terry, he doesn't know.
He told me to put TMAP :
- Setting to 1 : No , I ve a check engine and a 7.8psi readin on IDLE !
- setting 2 : same behaviour
- Setting to 3 : bingo, idle reads 0psi ( or vacuum) , but Ive a +/- 5 psi offset
ONLY 1 person reported Setting 3 did the trick, but he never validate the REAL boost pressure !
Any way to ''calibrate'' it?
here Setting 1 at idle :
