AutoVE tuning with turbo

[WicketMike]

ttttt

[bK]

I did a log on a Forced Induction car today that was tuned with Vcmsuite. When logging its MAP only went as high as 105 and all values below it seemed to be normal values at that rpm and speed etc.

Did i use the wrong pid?

The car has heaps of power - logged up to 1.36g/cylinder at 6000rpm

I did the same thing last night with a friends car, logging SAE.MAP it only recorded 105kPa. I recorded GM.MAP Voltage which was 2.5V and recorded MAP of 105kPa. The voltage peaked at 4.0V during a logged run but stayed at 105kPa

It's a 2bar MAP sensor, the car was programmed with HP Tuners with Custom O.S.

[oztracktuning]

Can someone make comment on this last post??

[Tordne]

Shouln't SAE.MAP be logged, not GM.MAP?

[bK]

Shouln't SAE.MAP be logged, not GM.MAP?

I've logged both, i hope this screenshot will give you a better idea, you can see SAE.MAP stops at 105kPa but the GM.MAP Voltage keeps climbing up.

[bK]

I found the answer in all places in the "Custom OS Upgrade Tutorial.pdf"

Configuring a 2 or 3-bar MAP sensor
When the key is on but the engine is not running, the MAP sensor reads the barometric air pressure, usually 101kPa (14.7psi). When tuning in high altitude areas it is worthwhile reading the MAP values (using EFILive’s Scan Tool) at key-on with the standard 1-bar sensor to obtain the barometric pressure at the current altitude.
After fitting your 2 or 3-bar MAP sensor, you must rescale the MAP sensor.
Engine Diagnostics->MAP->Parameters
• {C6301} MAP Sensor Scaler: 2-bar sensor: 190 3-bar sensor: 288
These values will get the MAP scaler’s value close to what it needs to be, you will then need to adjust it (by small amounts) until the MAP sensor reads the same barometric pressure that your standard 1-bar sensor was reading at key-on, engine-off.
Logging boost levels in the Scan Tool must be performed with the PID ‘SAE.MAP’.