2 Bar Map Sensor
 

Does anyone know where I can get a 2 bar map sensor for a 2000 civic ex. I've been using a missing link but it still breaks the map sensor and I'm only running 8psi.

Re:2 Bar Map Sensor
 

Hondata is the only company I know of that makes 'actual' MAP sensors for above stock bar signal.
I'm not sure if it fits 2000 or not, but worth a check http://www.hondata.com

Re:2 Bar Map Sensor
 

GM 2 or 3 bar map will do ya fine.

Re:2 Bar Map Sensor
 

and u will need a ecu able to reconize that aswell or some other "boxes"

Re:2 Bar Map Sensor
 

I heard this only works with a stand-alone-mg or a piggy-back system.Did I hear wrong?

Re:2 Bar Map Sensor
 

Well the voltage swing is the same on them regardless of who makes it(close enough anyways), ~0v-~5v. So as long as you wire it correctly it doesn't matter if it is a honda map, gm map, ford map....well nm ford.....they suck at everything :)



Mike

Re:2 Bar Map Sensor
 

yup...that's what i heard too.

Jeff-

Re:2 Bar Map Sensor
 

The 2/3 BAR MAP sensors Hondata uses are GM sensors, not their own. You have to have something that understands that you are using a different sensor such as a piggyback system or re-programmed ECU.

Basically you have a voltage range of 0-5 volts. The stock sensor devides the voltage up based on normal atmospheric pressure, and ~3.1 volts throws a code because it should never see over that voltage range normally aspirated. The reason why you can get ~9 PSI outta the stock sensor is because you still have 2 volts left, but you have to program or fool the ECU to see these extra 2 volts. The 2 and 3 BAR sensors still use the same range (0-5 volts) but the increments are bigger to allow for more pressure, so @ 3 volts on a 2 BAR sensor you are already into ~7 PSI. If the ECU doesn't understand that, it thinks you are at 0 PSI and is not providing neither the fuel nor ignition adiquate for that kind of positive pressure.

The piggyback or re-programmed ECU *knows* that 3 volts now means ~7 PSI and accomodates with fuel/timing retard. Make sense?

Mike

Re:2 Bar Map Sensor
 

The stock Honda MAP is scaled to ~11.8 psi at 5 volts, but is physically limited due to construction to either 9.25 or 10.65 psi. GM 2 bar goes to 14.5 psi @ full five volts. The scales aren't that far off, you should be able to tune it with an AFC just fine. I can show you my work if you disagree, Mike, I'd actually like to have someone pick a few holes in it. You definitely have some perspective on the situation.

Tidbit of info for the day; Ford MAPs are frequency based, not voltage - they are incompatible with anything other than more Ford stuff. Furthermore, I LIKE Ford thank you very much ;)

Re:2 Bar Map Sensor
 

does any one have the actual part #s for the gm 2 and 3 bar map sensers?

Beau