emanage blue time.. any sa/fb might be of help

Started by Kamatari, March 18, 2012, 09:55:39 PM

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Kamatari

i will check later on tonight on pin 2j which is probably the pin i should have been using all this time instead of the others which i was told due to it actually being a variable resistor that its passed through! (means my safc probably would have worked LOL) fingers crossed and all that...

i dont think pin 2c will work as i reckon thats just going to be a fixed voltage so i "pin" my hopes and dreams on 2j
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Prof

I reckon 2J is input air temp sensor - just a thermistor attached to ground - so it\'s not going to give you any air flow information.  Greddy manual says 2B - but that doesn\'t look right either ??
"Plus this engine is probably one of the most volumetric engines going! It passes more air than a herd of cows eating vindaloo\'s" - courtesy of AtomicRex


Kamatari

but wouldnt it use the intake air temp sensor which is 2L for that?
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hachiroku

starting up and then cutting out pretty quick does sound like it could be AFM related tbh. I\'d be surprised if the AFM worked on anything other than 0-5v, so the EMB should be able to read that signal ok.
 
I\'d have another look at the wiring and make sure you\'re tapping into the correct wires, also make sure the electrical connections to your AFM are secure.
Is this problem only since you installed the Emanage? if you remove the EMB from the loop then does the car run fine as stock? (ie just using the OEM ECU).
 
Worth checking that the jumper settings on the Emanage unit are correct for your model & year, and that you\'ve got the right airflow meter and other settings selected on the drop-down menu\'s.
 
I\'ve used EMB on other cars, but never on an RX7, for a naturally aspirated engine you could probably increase the Mpg slightly by trimming fuel where it\'s not needed, and also advance the ignition to make some power gains, but generally the few Bhp you do manage to free up does not work out particularly cost effective in my experience.
 
Also, I wouldn\'t seriously attempt tuning the maps without a wideband O2 sensor and some det cans/knock detector, you could rough tune it and get the rest dialled in on a dyno though.

Kamatari

yeah it works fine without the emb connected but when this is connected (or the safc neo at the time) it would just start up and cut out, going by the wiring supplied and the settings it is right, trying it on wires that have been suggested in the past its had the same issue but measuring the voltage comes in at 7.5v without the device attached and running normal which is the problem, i\'ll check the two other wires that i think could be better to use and see what voltage they read and if it looks in the right range then i\'ll attempt it with that
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Kamatari

right well with the car wired up to 2j i can start the car, with the real time monitor recording, the air flow input the emb is getting is 0v and it is outputting 0.13v so i must be on the wrong wire there :( although i must say it idles a bit nicer  i feel lol...

so pin 2j for the variable resistor is looking like a no...

Now the other issue ive got is that the rpms doesnt match up, when its idling its reading about 3k and then increase throttle and it goes up but is always about 2k - 3k out...
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Kamatari

Well reading into it more, with 2j being the variable resistor its voltage should be 1-4v so wrong wire or not, i feel like something is wrong with the signal from the variable resistor seeing as my input voltage is only reading 0v and if its outputting 0.13 its getting it closer to what it should be lol
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Kamatari

Quote from: Prof;816551I reckon 2J is input air temp sensor - just a thermistor attached to ground - so it\'s not going to give you any air flow information.  Greddy manual says 2B - but that doesn\'t look right either ??

I think you are right on this now and it is a thermistor lol so just 2c left then
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Kamatari

So the fsm says the air flow meter voltage should be 1.5v I believe when car is set to on, when you open the flap fully wide it will read 7.5v. I\'ve tried a spare air flow meter and gives the same reading, the only wire it gets this reading is the same as what\'s recommended in the greddy manual so am I going to be out of luck?
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Prof

It does look like you won\'t be able to use the AFM as an input/output on the emanage - as it\'s out of the 5V range for part of the flapper swing.
 
You can still monitor throttle position, RPM and other items that will not go outside the range.
"Plus this engine is probably one of the most volumetric engines going! It passes more air than a herd of cows eating vindaloo\'s" - courtesy of AtomicRex


Kamatari

Well I\'ve tried different settings, the input wire will show 7v when flap is open but emb maxes out at 5v, so output is only 5v and hence the problem, guess its time to get rid :(
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