Reaching top of VE tables by half throttle

[tryingbe]

I am indeed running 3 bar map.

Judging from the screenshot, you have a 1 bar map sensor.

Where did you get this map sensor?


I notice your Barometer is at 80kPa, which means you're at 6700ft or so above sea level?

Not necessarily with sensor calibration issues

In OP's MSQ, both map and bar is set at 3 bar, so, we know what the calibrations is set at.

From the calibration table inside TunerStudio, we know 3 map bar has the calibration of 0v = 1.1 kPa and 5v = 315.5 kPa, so there therefore 3 bar map has a simple linear function of y=62.88x+1.1

From the same place, we find that 1 bar map has the calibration of 0v = 10 kPa and 5v = 105 kPa, so 1 bar map has a simple linear function of y=19x+10

OP's map sensor was reading 292.5 kPa (4.634v), if we plug that voltage into the 1 bar map function, we get 98.046 kPa.

So, it is my guess that OP lives somewhere around 1000 ft above sea level and he has a 1 bar map sensor but calibrated as a 3 bar map sensor.


I'm not sure what's up with his baro reading at 80 kPa, unless OP lives at 6700ft...

I would strongly suggest OP post up some part numbers of his MAP sensors and let us know where he got them from.

[jsmcortina]

I'm not sure what's up with his baro reading at 80 kPa, unless OP lives at 6700ft...

He already said that he doesn't have a baro sensor, so that reading is garbage. When the reading is too far out of range the code limits it. The default minimum value is 80kPa.
Best to turn Baro off totally.

James

[turbo conversion]

I may have missed it in your post but are you indeed using two independent map sensors?

David

[Blown88GT]

I may have missed it in your post but are you indeed using two independent map sensors?...

...there is only a single map on this setup....

[Washdup]

Problem seems to be solved, the map sensor I purchased the first 2 times I guess wasn't really a 3 bar, more like a 1 bar listed as a 3.

Autozone has part #SU105 a duralast map sensor for the 89 trans am turbo, this is around $50 and is not a 3 bar sensor.
The sencond one part # SU504 is a bwd and is the right sensor,
Thanks to everyone who narrowed it down.

[turbo conversion]

I may have missed it in your post but are you indeed using two independent map sensors?

David

The reason I asked is your MSQ is set to Two Independent Sensors, have you set this correctly yet?

David