engine off and TS reads 2psi
Moderators: jsmcortina, muythaibxr
engine off and TS reads 2psi
got the car running good and all but I cant figure this one out.
code vers 3.2.1 on the base tune supplied by Matt Cramer for the Probe gt ZE they have in the shop.
I tried another map sensor mpx4250
D19 shows 5v on one side and 0v on the other
voltage at AD0-1 on the stim is 1.64v
with 18" of vacuum applied via a vacuum pump i get .445v
with car running I can only get ~14.5" of vacuum
tried the calibration menu and in order to get it to "0" vacuum it will also drop the kpa below my normal altitude of mid 90's
code vers 3.2.1 on the base tune supplied by Matt Cramer for the Probe gt ZE they have in the shop.
I tried another map sensor mpx4250
D19 shows 5v on one side and 0v on the other
voltage at AD0-1 on the stim is 1.64v
with 18" of vacuum applied via a vacuum pump i get .445v
with car running I can only get ~14.5" of vacuum
tried the calibration menu and in order to get it to "0" vacuum it will also drop the kpa below my normal altitude of mid 90's
95 Probe v6-t MS1
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
-
- Site Admin
- Posts: 39621
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: engine off and TS reads 2psi
Where is the "psi" number coming from? What is the MAP sensor reading in kPa ?
MSQ and datalog.
James
MSQ and datalog.
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: engine off and TS reads 2psi
96.6kpa at 2.4psi sitting on the stim, tried another map sensor but still.
95 Probe v6-t MS1
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
-
- Site Admin
- Posts: 39621
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: engine off and TS reads 2psi
What is your barometer reading? I'm guessing it is showing about 80kPa ?
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: engine off and TS reads 2psi
correct baro is 80kpa. Also I checked 2 other boards and they read 94kpa with the stim.
95 Probe v6-t MS1
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
-
- Site Admin
- Posts: 39621
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: engine off and TS reads 2psi
So how is baro 80kPa when MAP is 94kPa ? They should both be reading atmospheric pressure on the bench.
Near sea level that's approaching 100kPa. Up a mountain that could be 80kPa or less.
James
Near sea level that's approaching 100kPa. Up a mountain that could be 80kPa or less.
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: engine off and TS reads 2psi
http://www.youtube.com/watch?v=RqsuyAVbv1o
there's a video of it. what voltages should I be reading at the Map sensor pins?
there's a video of it. what voltages should I be reading at the Map sensor pins?
95 Probe v6-t MS1
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
-
- Site Admin
- Posts: 39621
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: engine off and TS reads 2psi
It depends on what altitude you are at.mac1 wrote:http://www.youtube.com/watch?v=RqsuyAVbv1o
there's a video of it. what voltages should I be reading at the Map sensor pins?
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: engine off and TS reads 2psi
well I reloaded the 3.2.1 code and it went back to normal thank god. As soon as I load the base tune .msq from DIY's Probe that's when it changes. So now I have Baro and kpa matching and vacuum now matches my vacuum pump. map reads 95.9kpa
so the it must have been the calibration for the map sensor that I couldn't figure out but I did try messing with it.
so the it must have been the calibration for the map sensor that I couldn't figure out but I did try messing with it.
95 Probe v6-t MS1
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
00 Accent 2.0L-T,Ms1
14 Factory Five 818 MS2 4 ebc/meth only
03 Tiburon v6 SC 1st ever MS
93 Tracer KLDE,Compounds w/2 of everything, Twin Megasquirt ?
00 Lotus Esprit v8-TT Full MS3x/ls1 coils/water/Meth
97 200sx 1.6L Stock, MS2/3.0, Sequential, CBR1000r coils
-
- Super MS/Extra'er
- Posts: 17507
- Joined: Thu Apr 16, 2009 8:08 pm
Re: engine off and TS reads 2psi
If you used the MSPNP Probe tune, please keep in mind that the MSPNP's baro sensor is a 1 bar unit! For anything other than an MSPNP, you'll need to fix the baro sensor calibration.
Matt Cramer -1966 Dodge Dart slant six running on MS3X