Hummer 2004 2 bar OS calibrate

[sss7556]

Hi, all
I was checked os 2 bar patch for Hummer h2 2004 6.0 v8 calibration map sensor.
It has 200/10.33 values at soft after patched rom.
But, its not correct, on idle map 2 bar (at VCM scanner) show around 105kpa, but non elrctic external map sensor show -0.4 bar, 60kpa so really.
Can any help with true values for map liner and offset, please?
Thank you
Alex

[edcmat-l1]

Need to know what map sensor is in it. There should be a part number on it. Photo would be best if you can do that.

[sss7556]

thank you for reply.
It's important, are there not recalibrate?
I can say, liitle late.
It's stock map sensor for hummer h2 2004, oem values 94,43/10,33 are correct by VCM logger shows.
Thank you
Alex

[edcmat-l1]

thank you for reply.
It's important, are there not recalibrate?
I can say, liitle late.
It's stock map sensor for hummer h2 2004, oem values 94,43/10,33 are correct by VCM logger shows.
Thank you
Alex

I hope this comes out correctly using your translator. There is no point in using a 2 bar custom operating system with a 1 bar map sensor.

You need this part number 19418810 AC Delco.

[sss7556]

you mean, I can not recalibrate 1 map oem sensop for 2 bar range? only replace it?

[TheMechanic]

you mean, I can not recalibrate 1 map oem sensop for 2 bar range? only replace it?

Map sensors are not internally calibrate-able. They have a specification based upon a relationship of pressure and voltage.
Long story short.
If you have a 1 bar OS you need a 1 bar MAP.
If you have a 2 bar OS you need a 2 bar MAP.
If you have a 3 bar OS you need a 3 bar MAP.

[Alvin]

Beyond that.. remember you need to delete the original map sensor pid and add the custom OS 2 or 3 bar Map sensor pid.

The original pid will work but only read up to 105kpa

[sss7556]

Beyond that.. remember you need to delete the original map sensor pid and add the custom OS 2 or 3 bar Map sensor pid.

The original pid will work but only read up to 105kpa

of course, checked by 2 bar sensor

[sss7556]

see pics for oem map sensor

[sss7556]

I hope this comes out correctly using your translator. There is no point in using a 2 bar custom operating system with a 1 bar map sensor.

You need this part number 19418810 AC Delco.

so that 19418810 AC Delco will fit replace oem map?
see oem pics, please
Thank you

[edcmat-l1]

so that 19418810 AC Delco will fit replace oem map?
see oem pics, please
Thank you

Correct. That part number is "plug and play". Connector is the same. Plugs right into the same hole, same size. Put your linear and offset back to what it was in the initial COS and you're good to go.

[Alvin]

Correct. That part number is "plug and play". Connector is the same. Plugs right into the same hole, same size. Put your linear and offset back to what it was in the initial COS and you're good to go.

Should be 200 x 8. won't make a huge difference but technically correct.

[sss7556]

Correct. That part number is "plug and play". Connector is the same. Plugs right into the same hole, same size. Put your linear and offset back to what it was in the initial COS and you're good to go.

ok, million thanks!!!

[sss7556]

Should be 200 x 8. won't make a huge difference but technically correct.

check it, thank you!

[edcmat-l1]

Should be 200 x 8. won't make a huge difference but technically correct.

Yeah that falls under "close enough" LOL

[sss7556]

Beyond that.. remember you need to delete the original map sensor pid and add the custom OS 2 or 3 bar Map sensor pid.

The original pid will work but only read up to 105kpa

hi
you mean, delete at vcm scanner for logging?

[SiriusC1024]

hi
you mean, delete at vcm scanner for logging?

Yes.

[sss7556]

Yes.

of course, tks