OZrallyracer

iTrader: (5)

Subscribing... I am about to put a zeitronix on my car, I'm assuming this is what I need to run the 5 bar map sensor in the stock location... Good info! And just fyi, road race engineering also makes an adaptor for the aem/ zeitronix map sensors in the stock location, or any sensor for that matter that has a 1/8" npt fitting. They come in silver or also in an anodized black and for only $25, they're a pretty good deal. The black anodized looks great on my black heat release coated manifold!

Nashou66

I have an AEM 35 psi boost gauge that comes with a 3.5 bar MAP so I can have the readings go to the AME gauge and the ECU simultaneously?

Athanasios

erickponce

iTrader: (2)

zeitronics makes an adapter harness that plugs in to the aem MAP sensor and the stock harness but im not exactly sure how you would get the readings to the gauge from there. Maybe just a splice from the signal wire would work

Nashou66

Well that is the lines i was thinking , if not using an adaptor and follow the instructions from the first post:

You also need to wire in the new sensor, as the plug is different. Cut the stock harness at the plug for the map sensor.
black to black
yellow to green
grey(?) to red

So I would just slice into the AEM harness and connect the stock wires to the splice in the same way mentioned in the 1st post.

I think it should work, not sure how much it would degrade the original signal tho.

Just wondering if anyone ever tried this.

I have had a couple Evo's and this is my first time looking at ECU reprograming.
So basically a newbee with most of this stuff. I have been reading and reading
a lot. So much info here its great and bad at the same time if you know what i mean.

Also since I have the 3.5 bar pressure sensor connected with vacuum tubes that came with the Gauge. I was thinking of just disconnecting the original MAP sensor all together and leaving it in there and using the AEM sensor that the gauge is connected to till i have a chance to buy the billet adaptor to place the AEM sensor in the stock location.

Athanasios

Nashou66

Ok here is the wiring diagram for the stock map sensor. is the yellow wire the Signal wire to the ECU? and if so does this put out 0.5-4.5vdc ? I was thinking of placing the AEM UEGO map sensor into this stock location disconnecting the stock harness since the sensor is powered from the Gauge harness. I would then take the 0.5-4.5 volt analog output wire from the AEM gauge harness(white wire) and connect it to the Yellow stock harness wire if that is in fact the ECU input signal wire? What do you guys think?

It looks like the GR and B wire are connected to a voltage divider in the MAP sensor and the Y wire is an output from an op amp according to the symbols, I'm not an electronics expert but do dabble a bit with electronics so I could be wrong.




Athanasios

benderrodriguez

iTrader: (26)

Looking at the tephra V7 of the 94170014 map I noticed the setting were already changed to these values (except the periphery 2 bit change)? Is there some table or something else I should scale?

Dynotech Tuning

iTrader: (12)

I never found an evoscan formula online that really worked for me so I figured I would share the formulas I use.

*EDIT* revised formulas in post #42 of this thread

-Jamie

burnzy

iTrader: (1)

would anyone have a formula that converts the evoscan logging for 5 bar aem to scaling for ecuflash for use with speed density? my formula on evoscan doesn't seem to match anyone elses and as such I can't use the pre defined values in ecuflash, sure I could use trial and error but was just hoping for an easier way out.

Jeeperjunior

iTrader: (10)

When using ROM 96531706 do i need to add the map tables listed for the other roms? or what all would i need to add for the AEM 5 bar?

It already has the scalings in the ROM for AEM 5 Bar. So all I have to do is select them correct? The scalings should be correct?

OsideEVO

iTrader: (8)

Little bit off topic. I have a zeitronix kit w a 5 bar sensor already. I can log boost w evoscan. Im replacing my blitz ebc with a gimmespeed controller. Is there any benefit from hooking my 5 bar to my ecu?

Raptord

iTrader: (10)

Yes; the possibility of running PSI-based boost control with the grimmspeed BCS.

Dynotech Tuning

iTrader: (12)

Updated Evoscan formulas:

PSIg:

x*0.367647-9.375-ATM

*NOTE* replace "ATM" with your local atmospheric pressure for your elevation.

Example at sea level (14.7psi atmoshperic pressure):

x*0.367647-9.375-14.7



KPA:

(x*0.367647-9.375)*6.89476




These were calculated using data from the zeitronix website HERE


-Jamie

cerevo

iTrader: (1)

I know this is old, but will what is posted in the OP work for a 3.5 bar AEM map as well?

scheides

iTrader: (10)

Nope, the math is different .

cerevo

iTrader: (1)

Do you happen to know where I can find the maths I need for the 3.5 bar?