Yeah the baro should still be working, just the "baro learn"

My understanding is that the "baro learning" will keep trying to reset the 50kpa MAP calibration -- HPT must have worked around that somehow.

 

hmm, maybe i do not understand what you are trying to say but my stock 1 bar map sensor will not read boost. i just went out to the garage and did a bench test on one i had laying around and at atmospheric presure i see 4.7volts, by 1psi over atmospheric i see 4.96volts and that is as high as it reads, 2-10psi and it is still at 4.96 volts. i am at something like 1200' elevation so my atmospheric is less than a true 100kpa so the fact that it apears to read 1psi only means that is it really reading up to a true 100kpa.

something that makes this confusing to talk about is refering to one bar as both 0psi and 14.7 psi. i hate the "standard" system of measureing and wish we would all just switch over to the freeking metric system for good. it is soo much simplier to use and comunicate with. when people ask how much boost they want to know how much over 1 bar, not how much total.

anyways, my map will not read boost and i dont know what you are talking about still.

 

so how do we install a 2bar i read on hpt forum a guy used a 2 bar from a 05 impala couse it pluged right in to his harness

 

I need to correct an earlier misstatement,a 2bar MAP will read 14.7lbs. of boost not the 7 1/2lbs.I stated earlier,I've never read more than 7 1/2lbs with my current setup.

 

Jim, all I'm saying is the PCM reads the 1 bar map but only uses about 1/2 of it (at least at my altitude) because it is scaled by the PCM to interprete the 0-5v as -14.5 psi of vacuum to 0 psi of boost and that you can slide the scale around and remap the sensor to read -7.5psi of vacuum to 7.5psi of boost (atmospheric relative) in that same range.

Your experiment just shows that you can't remap it from say -10psi of vacuum to 10psi of boost because it is only capable of reading 0psi to 14.5psi **of atmospheric pressure** which is 0 psi of boost.

I'm with you though -- I'm sick of the whole boost vs atmosphere thing. We should all be talking about running 1.5bar of pressure, not 7.5psi

So I'll start I'm saying you can take your stock map sensor which can read a 1bar range, and remap (using the offset) it the software to show values from .5 bar to 1.5bar

I think what you're saying is that the limit being imposed is not changable by the software, despite the offset that lets you zero out the reported MAP because it can't physically read past 1bar (in other words its range isn't 1 bar per se, it's however much vacuum you can generate to 1bar period). So if you set the offset to -105kpa, you will always read 0 kpa?

**I also just read some of my posts -- not much surprised to see I left out words... The first few of posts may make more sense now.

 

Part number in my big long post above -- to install take off the engine cover, and the small black "hook plate" in the back (held on by 3 10mm bolts), pull the old map out (the only sensor under that black plate -- plugs right into the manifold with little clips on the side to hold it), unplug from the harness and plug in the new one.

It won't run without a 2bar tune, though, so be warned.

 

thank you sorry i didn't read your long post i'm really busy tonight. do i have to buy hpt 2bar support or is there a way to recal some stuff with regular hpt. i'll read all the long posts later if its in there thanks for the help

 

I don't think you can do the recalibration in HPT without the added support. I don't see the pids.

 

so i need hpt with the 2bar support. is there a 3bar that will plug in that way if i ever need it i have it?

 

That I don't know. I quit looking and settled for a 2bar Either way, with HPT you have 2 bar support or 3 bar support or pay for both.