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

Kamatari · March 18, 2012, 09:55:39 PM

Well I\'ve wired in the emanage blue and believe I\'ve set it up right, started the real time management and set it to record and fired the car.. Starts, revs up and dies just like how it did with the safc...

so looking at what was recorded it seems that the air flow signal in and out had a maximum voltage of 5v when it cut out, now from what was worked out last time, uk N/A\'s have a 12v afm which, the setup going by the manual will be for 5v systems. Now if I\'m right, the sa/fb\'s have a 12v afm so anyone who has setup an emb on one of them might be quite useful

Apart from that, anyone got any help?

m1tch · March 18, 2012, 10:16:11 PM

Or perhaps fit a turbo II air flow meter?

Kamatari · March 19, 2012, 12:15:42 AM

oh would that work? like just bolt it in? but the question is, where would i get one from

Kamatari · March 19, 2012, 12:33:14 AM

does anyone know what the differences are in the "MZ_FL_1(to 8 i think)? without bring up the documents i believe it says set it to MZ_FL_4 but im wondering what it might be for an older rx7?

B.Martin · March 19, 2012, 08:24:47 AM

I\'m not very mechanical minded, nor do i claim to know a lot, so the following scentence could be bull carp. What i am not sure of is what you intend to gain from the emanage on the EGI, my understanding of the Emanage is that they\'re inteded to increase and re-tune fueling for different cars (usually FI) and with the EGI running rich anyway an increase in fueling isn\'t going to help you and will more likely increase flooding. If you decide to tune it to get a better mpg then your going to be increasing the risk of running lean, i guess my point is the fun your having now coupled to the costs that could be involved if you try and get it mapped properly for very very minimal gains point to the question. Is this worth your time, money and effort when you could be spending it on something more worth while? Say upgraded headers and full exhaust system, or coilovers and some decent tyres (though admittedly i\'m not sure what your running now) which would probably see better and more practical gains?

Please don\'t for a second think i am \'hating\' here, because thats not what i am doing i\'m meerly giving you an opinion of what i\'d do in your position. I\'ve been given similar advice by members of this forum when i\'ve gone off and started to do things that are ultimately pointless.

Prof · March 19, 2012, 08:43:45 AM

If the AFM is supposed to see 12V, I am not sure if the emanage could intercept that signal. Not sure if it will go to 12V or not for an analogue input / output.

Certainly the emanage ultimate does 5v analogs - but then almost all sensors work to a 5v reference anyway.

I guess you are between a rock and hard place on this, as the AFM is the only way the emanage blue can control the fuelling

Kamatari · March 19, 2012, 08:45:21 AM

its all just a learning experience really, as its all new for me

upgraded exhaust system is on my list at some point, coilovers would be nice although ive got lowered springs if i even decide to fit them and tyres....cant remember if theyre a decent make..but theyve got tread lol

It\'d be nice to have this emb all running with the car and then atleast i\'ll know if it was pointless...im at the final hurdle again where i had to walk away because of the safc id like to finish now with the emb lol

Kamatari · March 19, 2012, 08:47:40 AM

Quote from: Prof;816513If the AFM is supposed to see 12V, I am not sure if the emanage could intercept that signal. Not sure if it will go to 12V or not for an analogue input / output.

Certainly the emanage ultimate does 5v analogs - but then almost all sensors work to a 5v reference anyway.

I guess you are between a rock and hard place on this, as the AFM is the only way the emanage blue can control the fuelling

i thought the emb had a bit more flexibilty and again isnt going to be a maximum of 5v...that\'ll be quite annoying heh

B.Martin · March 19, 2012, 09:00:59 AM

Quote from: Kamatari;816514its all just a learning experience really, as its all new for me upgraded exhaust system is on my list at some point, coilovers would be nice although ive got lowered springs if i even decide to fit them and tyres....cant remember if theyre a decent make..but theyve got tread lol

It\'d be nice to have this emb all running with the car and then atleast i\'ll know if it was pointless...im at the final hurdle again where i had to walk away because of the safc id like to finish now with the emb lol

Fair play to you, hope you get it sorted :Thumbs-up

Prof · March 19, 2012, 09:03:18 AM

If you have access to a multimeter, then connect the black lead to ground, and measure the output of the AFM on the 20V range.

If it is only a 5V AFM, then as you operate the flapper door, you\'ll see the voltage vary -You will need the car set to IGN, but not start. I thought the EGI\'s were still a 5V referenced AFM, but you will be able to verify with this test.

I don\'t think the emanage can output any analog voltage over 5V, so if you\'re AFM really is higher, then it won\'t work.

Kamatari · March 19, 2012, 09:28:58 AM

not sure if this will show up... from my search last year when with the SAFC... and a diagram page herehttp://rx7cz.net/pics/IMG_0663.JPG

EDIT: Whoops, well heres a link to the post then http://www.rx7club.com/showpost.php?p=10591389&postcount=43

Prof · March 19, 2012, 11:12:03 AM

Looks like it\'s wired to 12v but that passes through a resistor and then onto the divider / wiper that feeds the variable throttle signal to the ECU.

Bot the first divider point and the variable flapper take off are fed to the ECU - pins VC and VS respectively - which are pins 2B and 2E respectively on the ECU - measure 2B - it should be a static voltage - not varying with throttle - if that is close to 5v, then the flapper signal will be anywhere between 0-5V - so it may work ok with emanage.

Kamatari · March 19, 2012, 11:27:13 AM

Looking at the wiring diagram again...., ive tried pin 2b and 2e, but i it looks as if theres also 2j and 2c that i could take a reading from and see if anything works out

Infact after looking at it more, the wire to pin 2j seems to be going through a variable resistor so i think i need to start there,the wire going to pin 2c has gone through 2 resistors and before its got to pin 2c, it seems that a few things have come off it, one of them being the throttle sensor which i know reads a 5v when fully pressed which could also be promising?

Kamatari · March 19, 2012, 11:29:39 AM

Quote from: Prof;816533Looks like it\'s wired to 12v but that passes through a resistor and then onto the divider / wiper that feeds the variable throttle signal to the ECU.

Bot the first divider point and the variable flapper take off are fed to the ECU - pins VC and VS respectively - which are pins 2B and 2E respectively on the ECU - measure 2B - it should be a static voltage - not varying with throttle - if that is close to 5v, then the flapper signal will be anywhere between 0-5V - so it may work ok with emanage.

2b and 2e are what ive used originally and thats reading 1.5v when the car is not on, if i start the car (with no emb) then the reading ill get is about 7.5v but with the emb before it cuts out gives it a max reading of something like 4.85v

Prof · March 19, 2012, 11:41:26 AM

Anything over 5v on the AFM\'s variable input into the ECU and you won\'t be able to use the blue emanage to manipulate that signal - doesn\'t stop you using it for for other signals, just means it can\'t control the AFM.

Not sure how much fuel adjustment you could get without using the AFM, but you could use throttle position / RPM / MAP to adjust the fuelling still.