Zener Diode Mod to MAP sensor signal
Does anyone know about this method of tricking the ecu into not reading boost or lowering the voltage? Also is our sensors a 1 bar or 2 bar? I just found out about and curious to try it so fill me in on ur opinions and info. THANX ::)
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Re:Zener Diode Mod to MAP sensor signal
Heres a write up i found about it......
http://www.thedodgegarage.com/turbo_map.html |
Re:Zener Diode Mod to MAP sensor signal
Originally Posted by TurboCivicSiR21
Heres a write up i found about it......
http://www.thedodgegarage.com/turbo_map.html The stock MAP sensor on Civics is rated at 1 BAR. |
Re:Zener Diode Mod to MAP sensor signal
No problem man so its 1 bar cus i seen someone said somwhere else it was 1.75. Anyhow are u goin with the 4.3 volt diode as well? im gonna go out and buy one today since i see its only a few bux at radio shack so its worth a try let me know how it goes for u as well.
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Re:Zener Diode Mod to MAP sensor signal
stock honda map sensor is 1.75 bar
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Re:Zener Diode Mod to MAP sensor signal
What you're reffering to has been done many times before...It's just a Map hack...
Trailor park hack, AFC hack stuff... It's ok, but if you got a SiR I wouldn't do it...you have the cash for an SiR and you're doing a hack?? just sad....it's risky and not reliable |
Re:Zener Diode Mod to MAP sensor signal
Originally Posted by TurboCivicSiR21
No problem man so its 1 bar cus i seen someone said somwhere else it was 1.75. Anyhow are u goin with the 4.3 volt diode as well? im gonna go out and buy one today since i see its only a few bux at radio shack so its worth a try let me know how it goes for u as well.
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Re:Zener Diode Mod to MAP sensor signal
honda map sensors read .75bar (positive pressure) so they are 1.75 bar.
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Re:Zener Diode Mod to MAP sensor signal
Originally Posted by Semnos
1 bar is 14.5-14.7 psi....
1.75 bar is about 25psi You got to remember that our atmosphere is 1 bar or 1.1 bar already... you got to deduct that from the map sensor range... |
Re:Zener Diode Mod to MAP sensor signal
Originally Posted by Semnos
What you're reffering to has been done many times before...It's just a Map hack...
Trailor park hack, AFC hack stuff... It's ok, but if you got a SiR I wouldn't do it...you have the cash for an SiR and you're doing a hack?? just sad....it's risky and not reliable |
Re:Zener Diode Mod to MAP sensor signal
Just installed the diode, works ok, cel dont come on til like 7k now so i lowered the boost gonna take it out and see how it is and most likely go with a lower voltage so see if that makes a difference. test and tune since there only a buck a piece.
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Re:Zener Diode Mod to MAP sensor signal
Originally Posted by TurboCivicSiR21
Just installed the diode, works ok, cel dont come on til like 7k now so i lowered the boost gonna take it out and see how it is and most likely go with a lower voltage so see if that makes a difference. test and tune since there only a buck a piece.
Did you use the 4.3 or the 4.7 volts diode? |
Re:Zener Diode Mod to MAP sensor signal
I used the 4.3 but i think im gonna try maybe a 4.0. i can actually go through 1st and 2nd with no cel but then in 3rd it comes on still. It will come on also if im cruisin in a high gear at low rpm's and just hit the gas a little bit and the cel comes on but im still messin with it.
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