Boost reading with tunes
Thread Starter
|
Tuned
Joined: May 2015
Posts: 385
Likes: 1
Boost reading with tunes
I have heard that if your truck is tuned the stock boost gauge and any reading from the OBDII port will not be correct. Does anyone know how far off the readings are? I am trying to decide if it is worth adding the edge pressure sensor for my Insight.
FTE Leadership Emeritus
Joined: Sep 2003
Posts: 12,246
Likes: 761
From: Houston, Texas
Its actually true because the tune has to lie to a few sensors in order to achieve the performance you're looking for. If the PCM were able to see actual boost readings from the MAP it would defuel the truck.
Lead Driver
Joined: May 2014
Posts: 6,545
Likes: 13
From: Virginia Beach VA
And OBD2 readings? Then why is it that almost every thread starts with what's live data say, readings from the OBD2 port?
I would thing most would say... well your gauge is not really anything real or believable. I would agree that some of the data may be off because of tuning and that some of the installed gauges are just a gauge to give a gauge. But the truck is reading the live data to make adjustments to actual parameters required to operate and that most of the data is pretty accurate to a degree.
I would thing most would say... well your gauge is not really anything real or believable. I would agree that some of the data may be off because of tuning and that some of the installed gauges are just a gauge to give a gauge. But the truck is reading the live data to make adjustments to actual parameters required to operate and that most of the data is pretty accurate to a degree.
Certified Thread Hijacker
Joined: Aug 2001
Posts: 14,441
Likes: 60
Depends on the gauge set and how they derive the boost number. If the digital gauge is using MAP and calculating off baro for example or just using the PCM reported boost value.
However some tuners do have the reading lower than actual and some will even zero out after a certain boost. One of my looney tunes zeroes out after about 23 psi.
However some tuners do have the reading lower than actual and some will even zero out after a certain boost. One of my looney tunes zeroes out after about 23 psi.
Elder User
Joined: Oct 2014
Posts: 970
Likes: 1
From: Marietta, GA
Boost reading with tunes
Depends on the gauge set and how they derive the boost number. If the digital gauge is using MAP and calculating off baro for example or just using the PCM reported boost value.
However some tuners do have the reading lower than actual and some will even zero out after a certain boost. One of my looney tunes zeroes out after about 23 psi.
However some tuners do have the reading lower than actual and some will even zero out after a certain boost. One of my looney tunes zeroes out after about 23 psi.
I want to get a gauge so I can see what it really is lol
Thread
Thread Starter
Forum
Replies
Last Post
superstroked6.0
6.0L Power Stroke Diesel
10
Oct 23, 2016 06:18 PM
