Infinity ecu

[sluti85]

Have chrome ecu but am wanting to upgrade preferably to a aem infinty . Its not plug n play but there is a patch harness available . Just wondering if its been done yet and with what series of infinity 5 or 7 . I know aem doesnt support out crank signal pattern but read that they or someone offer a new disc for the 1g cas that u can switch out . Just want to know has anyone heard of anyone actually doin this or actually done it urself . Ive already contacted aem to see what problems i might have but waiting for a reply from them now


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[sluti85]

Also what dia. Is the stock cas disk ? There a 24tooth disk for dsm cas that i think will work but need to know dia. Of the 3000gt factory one to be sure . The infinty ecu has universal 24tooth 1cam pulse setting so as long as i have that disk i think i can make it work


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[jroberts8983]

Look into the series 6. I make conversion harnesses. I was talking to guy that plans on using the series 6 and he wanted me to make a harness for it but I don't know enough about it to do it. But he said it's the most compatible with our cars and can read our crank angle sensor. However I did find on eBay someone that makes the conversion harness for the series 6 to be used in our cars. I'll find the link again and post it for you. Should you be interested in that or maybe you can to them and get more info on the series 5 an 7 and maybe they can make a harness for that.

J.R.

[jroberts8983]

https://m.ebay.com/itm/AEM-Infinity-6-8h-Plug-Play-Jumper-Harness-Mitsubishi-3000GT-1990-1993-/292301059477?_mwBanner=1

J.R.

[sluti85]

Series 5 is the 6/8 its bsically how many cylinders it can control like the series 7 can do up to v12 or v6 with dual injector setup. Have already contacted aem n they dont support 6g72 crank pattern but if i change the disc inside cas to a platform that they support then it should work .....i think . There is a available cas disk for the dsm cas and i basically need to know if i can use one of the aftermarket 50dia 24tooth 1cam pulse cas disk in my cas housing . I think that they support a 24tooth 1 cam pulse cas disk .


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[Chris@Rvengeperformance]

best bet is to take a 1G cas and open it up and measure. I wanted to do this too, but stuck at the moment. I wish aem would just update the firmware to support us. I love the series 2, but don't want to get left behind.

[sluti85]

Thats exactly why im tryin to go this route . I just measured it its 50mm stock little less than 2in on ruler but ive read conflicting info on the part that mounts the disk to shaft its like a D shape but im guessing it will need to fit that perfectly . I might just buy the damn 40$ disk n see if it fits. Im guessing it will since most the cas all look alike . Im surprised aem doesnt support the 6g72 platform n just offer the cas disk with ecu like they do for the nissans. Or different cam/crank trigger disk for use with our cars . They support the dsm with infinity i believe why not us !


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[sluti85]

https://uploads.tapatalk-cdn.com/20171112/736d29b5b619b66335533eb744b9d95d.jpghttps://uploads.tapatalk-cdn.com/20171112/5c3b79d6413d746104148bf32302a593.jpghttps://uploads.tapatalk-cdn.com/20171112/27f7f132006fb93ab606ca0f3c4ee96c.jpghttps://uploads.tapatalk-cdn.com/20171112/2b7c3b8124fd0f8b3ef90ce9cb779b4d.jpghttps://uploads.tapatalk-cdn.com/20171112/a79342cd665f1ab6dceabdb70948d2c8.jpg


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[sluti85]

Talk for a while yesterday with aem and looks like it will work gotta buy the 24 tooth cas disk which i confirmed with yoshifab that it will fit our crank angle sensor . So basically just need to purchase ecu n have someone make a harness . I do like the quality of the harness that boomslang.com makes . Once i acquire all the stuff i need i will post back to let everyone know that it works and what it took so this thread doesnt end up not finished like half of the ones on the net about this subject .


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[sluti85]

Just bought the aem cas disk for the nissan 240 its 50mm diameter has 24 outer teeth and one inner cam tooth . But its fits our cas perfectly . So now i just gotta decide what route i wanna go with for wiring the aem infinity


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[Chris@Rvengeperformance]

Just bought the aem cas disk for the nissan 240 its 50mm diameter has 24 outer teeth and one inner cam tooth . But its fits our cas perfectly . So now i just gotta decide what route i wanna go with for wiring the aem infinity


Sent from my iPhone using TapatalkVery cool!

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[sluti85]

https://uploads.tapatalk-cdn.com/20171126/768c908e17f264e27c8fefcc894cd5db.jpg


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[Chris@Rvengeperformance]

yah for OEM stat sync speeds!

[kywhitelightning]

Very interested in how this plays out.

Jeff

[sluti85]

One thing i havent asked for ideas on is a way to keep my a/c operable . I know the ac control unit sends 12 v to ecu then ecu grounds the clutch relay if all parameters required are met . Seems simple but not sure if i could just put i switchable ground to clutch relay . For instance will it still cycle properly without the control unit not having a input to ecu n so on ? Any help is appreciated . Ive studied the a/c schematics for hours n it seems there is some missing info in the elec diagrams


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[sluti85]

Also on another subject . I bought chrome ecu few years back so i could tune and keep my ac factory but i got the chrome ecu n my ac clutch wouldnt turn on unless i manually operated relay. Sent ecu back to adam he said it worked fine for him n sent back to me . Which it still wouldnt work for me so i put stock ecu in and ac works flawlessly . So i kept using chrome anyway just no a/c . Then started getting cold n i noticed compressor would kick on if i turned temp setting on dash up above a certain point i think its around 70-75 deg or above the ac operates properlly but i dont need it when cold lol need it to work when on coldest temp setting on dash . And if i swap back to stock ecu a/c operates in all temp settings coldest to hottest . It makes no sense n ive thought this threw many times . Thats why if i cant have my a/c with chrome i might as well get best ecu i can like the infinity . Any ides or suggestions again are greatly appreciated . Thanks in advance !


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[sluti85]

And forgot to say that ive tested the wire from ac unit when tryin to command ac from dash . Stock ecu it gets 12v immediatly from control unit . With chrome the ac control unit wont send its signal to ecu till above that certain temp setting like mentioned above . So what difference is ac unit seeing between ecu's the only wires on ecu i can find for ac are 1 from control unit to ecu n then ecu to clutch relay . So whats the control unit seeing with chrome ecu that it doesnt send the command signal to chrome ecu till temp setting is raised on dash


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[Greg E]

Definitely sounds like a faulty ECU or corroded ECU grounds.

[sluti85]

I sent to adam he said worked fine in his car n sent back to me . Its weird that the ac control unit sees somthin different between ecu's n i cant find useful info in service manuals to see what the ac unit uses to determine when to signal to ecu to activate ac clutch relay. With chrome ecu somthing isnt makin it happy untill temp control is in warm section then ac unit sends signal . its drove me nuts thinkin about it!


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[Chris@Rvengeperformance]

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any luck?

[sluti85]

Yes Aem disk fits . Ordered a custom harness n was almost ready to install it and tried to plug ecu into harness n its was wrong connector because one corner wasnt same as ecu but i sent it out today so hopefully itll be back shortly with the right connector n a few mods i wanted him to do or change . If i had access to the connectors i would need and knowing what i know now about the wiring i would do it myself if i could do it again . I had him send me a naked harness so i could finish with proper harness tape n sleeving myself


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[sluti85]

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[sluti85]

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[sluti85]

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[sluti85]

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