MSD 4 bar map sensor HELP!!!

Psigun

New Member
So I just bought a MSD Boost and Vacuum Lazer PN 4626 and it includes a "4 bar map sensor".
So I need to know, if this MSD 4 bar map sensor that came with the MSD gauge will work with my "AEM EMS ECU"?
or do I still have to buy a GM /AEM 3.5 bar map sensor to work with the AEM EMS?
Any experiences with the map sensor from the MSD LAZER series?
Please help.

I tried searching but it doesnt say anything about using an MSD MAP with an AEM.
 

acclude

cheap bastard
How many PSI are you pushing? If less than 30+ then you really have no need for the 4 bar MAP. A 3 BAR will read up to 30 PSI or so.

Also, the voltage signal sent to the ECU will be different for different BAR sensors. YOu will need to re-map the ECU to work with the 4 BAR. Your best bet is to use the MAP sensor your tune is currently setup for and then install the 4 BAR and tune for it at the same time next time you have a chance.
 

Psigun

New Member
To be honest the parts haven't been installed yet (turbo kit/AEM EMS/Sensor, etc.), but I have everything ready to go. I'm planing on going 8psi for street use and 16psi to 20psi for drag use, more street than drag, but since this sensor came already with the MSD Gauge well I wanted to know if I could use it or I had to waste another hundreds buying another map sensor or save the $$$ for other mods and use the 4 bar that came with it. Thanks for the reply thou.
 

acclude

cheap bastard
Well, why not use a 2.5 BAR or 3 BAR for the ECU (whatever it's tuned with now) and then wire up the 4 BAR separately specifically for use with the gauge?

If the ECU has not been installed/tuned at all yet, then you should be fine using the 4 BAR for both. As far as I know, the AEM will recognize and read the 4 BAR properly.
 


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