The 75 and ZT Owners Club Forums - View Single Post - 1.8T auto

Sheraton · 22nd January 2020, 10:28

I think i'm catching up now

0 on my Boost Gauge should read 14.5 using the MAP Sensor Values.

-10 on my Boost Gauge at Idle would be 4.5 via the MAP.

+12 on my Boost Gauge at Full Throttle would be 26.5 via the MAP.

lol.... I read some misleading info r.e Absolute vs Relative Pressure that had me confused.....easy to do I know

I think it's more accurate to say - the MAP Sensor Values do NOT account for Atmospheric Pressure - rather the Boost Gauge does as it is Zeroed at Atmospheric Pressure.

out of curiosity what MAP values do you see at Idle now ?

Paul.

22nd January 2020, 10:28	#9
Sheraton Posted a thing or two Rover 75 1.8t Join Date: Oct 2015 Location: Edinburgh Posts: 1,377 Thanks: 384 Thanked 409 Times in 267 Posts	I think i'm catching up now 0 on my Boost Gauge should read 14.5 using the MAP Sensor Values. -10 on my Boost Gauge at Idle would be 4.5 via the MAP. +12 on my Boost Gauge at Full Throttle would be 26.5 via the MAP. lol.... I read some misleading info r.e Absolute vs Relative Pressure that had me confused.....easy to do I know I think it's more accurate to say - the MAP Sensor Values do NOT account for Atmospheric Pressure - rather the Boost Gauge does as it is Zeroed at Atmospheric Pressure. out of curiosity what MAP values do you see at Idle now ? Paul.