I have a d16 turbo setup (7-9psi) and have had issues with my stock map sensor due to over boost with a straight through exhaust. i picked up a 4 bar omni power map sensor and installed it to fix this issue. i tried starting the car after i installed it and it will sputter and die every time. do i have to be running 10+ psi in order to have this map sensor work properly?

Edit: I purchased it off ebay through import performance. Could this be the problem? lol


Modified by 1badteg at 9:16 PM 6/28/2008

 

this thread might help.

https://honda-tech.com/zero...73930

 

i bought mine off ebay and it works great.

are you running an s300? did you update the map sensor setting?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FTR94EX &raquo;</TD></TR><TR><TD CLASS="quote">i bought mine off ebay and it works great.

are you running an s300? did you update the map sensor setting?</TD></TR></TABLE>

never updated the map sensor setting. i have a piggy back ecu with the edelbrock turbo kit i have. so basically if im not running an after market or chipped ecu then it wont work?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1badteg &raquo;</TD></TR><TR><TD CLASS="quote">

never updated the map sensor setting. i have a piggy back ecu with the edelbrock turbo kit i have. so basically if im not running an after market or chipped ecu then it wont work? </TD></TR></TABLE>

Its more than just an aftermarket ecu. the MAP sensor scaling needs to be recalibrated for any map sensor change that is not OEM/stock.

The reason you have to rescale the map settings is because instead of having 1.7 bar (stock/OEM honda map sensor) spread out over 5 volts you now have 4 bars of readability spread out over 5 volts. In order for the ecu to properly calculate a fuel mixture or go to the correct table for each engine load situation you need to change the scale by which it reads. Once the calibration in the ecu is changed it will run like stock and read and understand upto 43.5 psi above atmosphere.

Also just to clarify you can run no boost or 43.5 pounds it makes no difference or anywhere in between.

 

The stock map sensor can read up to 11psi so there shouldnt be any problems if you are just running 7-9psi. I run 11psi on my gsr and dont have any problems with the stock sensor