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How much will my tune change with 2 different map sensors.

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Old 07-01-2006, 08:04 AM
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Default How much will my tune change with 2 different map sensors.

I am about to do some street tuning and I wanna know if i should wait till i get a new 3 bar map sensor, or just do some tuning with my OEM one first...

Ideally i would like to run around 14 psi... but i wanna make it safe for now...

can i just change my map sensor later on using chrome or will it change EVERYTHING?
Old 07-01-2006, 08:08 AM
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Default Re: How much will my tune change with 2 different map sensors. (Topdawgg)

you can have have the 3 bar wired in later on and still have your OEM map plugged in but only 1 at a time..

yes your tune will be off because it will not be fed the right sigal.....
Old 07-01-2006, 08:14 AM
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Default Re: How much will my tune change with 2 different map sensors. (FR-MOB: SnoFlake)

ok, well i just spliced the wires, so i can run one or the other... but im just wondering if it will really change things when i switch back and forth on the Crome program
Old 07-01-2006, 08:16 AM
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Default Re: How much will my tune change with 2 different map sensors. (Topdawgg)

it will matter because each map sensor is scaled differently. that is, with the same input (vacuum/boost) they output different voltages
Old 07-01-2006, 08:17 AM
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Default

but if i switch them on the program itself, will that be sufficent? or will I have to start from scratch
Old 07-01-2006, 08:20 AM
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Default Re: (Topdawgg)

youll have to change a few things in the tune
Old 07-01-2006, 08:20 AM
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Default Re: (wantboost)

but not ALL my values for timing and fuel levels?
Old 07-01-2006, 08:22 AM
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Default Re: (Topdawgg)

actually, now that i think about it. it may be all
just depends on how crome rescales things ( i havent played w/ the software in awhile)
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