Running a 2g ecu in a 1g?

Looking for a bit more info on this. More geared toward the legality and emissions and all that huh-bub surrounding this mod.

I tuned my GSX via ecuflash and instead of learning another way of doing it figured I'd throw a spare flashable ecu in the 1g make it more modern I know all I need is a jumper cable to wire it up and a 2g knock sensor.

(http://www.dsmtuners.com/forums/tun...3-2g-flashable-ecu-1g-patch-harness.html
http://www.dsmtuners.com/forums/electrical-tech/418334-2g-ecu-1g-wiring.html)

Plus it would make tuning easy since it's already running a 2g maf/2g intake manifold etc.

How will this affect my testing results for codes and pass? Anything to worry about? I'm pretty mind set on doing it but want to make sure it won't become a headache at the testers.

Let me know, would appreciate anything you can input.

A 1g will be 2 speed idle tested. I dont know all the ins and outs of the mod you are doing
But i would say you probably wont have an issue as long the cel isnt illuminated if the testing facility even checks that before they test.

Well your 1g will just get a sniffer test. So as long as you're not showing a check engine light you're good.

Not sure if this mod will cause one, but do you have a way to turn them off?

Edit: Dammit Stephen..

Even if I change the plug from OBD1 to OBD2? or do they just look at the year?

Right. They dont care what ecm is in there. The problems will happen on the 2g's with a 1 g ecm where they cant read any monitors.

Sorry Jeremy......

Good enough for me :D, this will be in the plans for later. Thanks!

I was almost ready to start a 1g ecu into a 2g.. Becuase DSMAP is way easier them all.. and its only available in 1g. And now that im learnin the ways of link... I stand by my words!
Anyways. Its not that hard.. there is only 4 or 5 wires that need attention.. I dont have my notes cause im in Kitchener for a few days.

But as far as emissins go.. run a dual ecu.. use the 1g ecu to moniter and control the emissions. So it can collect data for the obd1.. and just use the 2g ecu to controll the injectors and timing.

Mind you my issue was that the 2g car needed the obd2.. And the 1g dsmap ran in open loop all the time so it only needed the map sensor and cas signals.

Biulding a harness adapter wasnt gonna be as hard as it would seem but..Honestly for all the effort tho.. it would be easier to learn something new. And dsmap is way easier the ecuflash.

^ Nah, ecuflash is easy-peezy it's just actually getting it to flash sometimes that gets irritating. Very underestimated tuning software Plus My ecu won't leak capacitors all over the place

Already making a list of what I need for this mod. Going to scavenge some 1gs and 2gs for the plugs and the harness will be a done. Plus the ecu will match the color of the car....blackkkkk lol

Heck if I wanted I could run ecuflash on an evo ecu in there, just don't feel like spending more money (already have spare 2g black ecus). Although the evo ecu has more options.....

That makes no sense.

Think about this. You put a 1G engine in a 2G car, right? The engines are the same, everything's the same. The emissions controls are the same, the solenoids, the EGR everything is the same.

The difference is the 2G ECU has more inputs than the 1G, making it far superior. The 2G ECU didn't really have issues with the caps leaking. Yes, there's some wiring involved, but the outputs and triggers are the exact same, just make sure you've got anything reversed that needs to be reversed to make everything match.

I passed emissions in 2012 with just a cat, that's it. Most test facilities don't look under the hood for everything. It's too costly for the time it takes. The shop only makes so much out of the emissions testing they want it done as fast as possible.

In short, your car does not fall under the new emissions rules, so you don't have to worry about them checking your readiness monitors. All you need is a functioning cat and a tune that doesn't suck to pass emissions with these cars.

I passed mine on exactly what I have now. 1450's, Kelford 272 cams, the whole works.

The 2G ECU also has an input for the rear O2 sensor, great if you have a wideband and wish to keep running a functioning front O2 sensor.

Rob was telling me about when he did a 2g ecu in his 1g, you might want to talk with him and see what his experience was like.

Haha Ryan nice catch some how I missed that. Jay man you must be drinker some stellar juice to come up with that one!! I can just imagine the mess it would be under that dash.

Actually the guy I was working with built several 1g to 2g adabters. But like I said... its more for running a 1g. ecu in a 2g and stil being able to hook the obd2 port up to an emissions test. I dont believe. the 2g ecu has any thing that would make it a better ecu.Both ecus will make more power then we wil ever see.

If that earlier post was messed up a bit.. its cause I posted it while I was sitting in dead stop traffic on the 401.

Ecu conversions were popular when the 2gs came out and the only tuning options were available for 1gs.

2g just has two more features that I know of. Second OBD2 port, fan control.

Thanks Ryan, that's precisely what I was looking for tuning will definitely be done with flashy-flashy then

I've even heard you can have 2 maps on a 2g ecu which can be switched via a switch on the run. Not too much info on that one, but I've been looking into it for the past couple days.

I have to stop modding it at one point and actually enjoy it though so that may be for summer.

This really seems to be a common problem, haha! Eventually we have to enjoy the fruits of our labour.

Don't worry, winter will be back in 4 months so you can rip it all apart again

Jay, the ECU has nothing to do with how much power the car can make. The tuning is the same in both ECUs. The 2G ECU is far superior because it can do the following:

2 O2 inputs (Front and Rear)
Fan control
MDP input

You can have 2 maps on either platform I believe, and they can be triggered when a certain output is triggered (FPS, EGR).

Why so negative Jeremy.... i just pulled her out of the garage for a bath. Man what a nice day.


Just do the mod G. It will etest fine... I am pretty sure alot of 1g's have passed the 2 speed idle test with no cat.

Sorry double post..... please delete.

Ryan.. the only reason I believe the 1g is better is that you can use dsmap to tune the car.. and run things like mmcd. And before there was converted non eproms.. there were not many 2g ecus out there that could be tuned. Im not saying one will perform better. And as far as those few extra things a 2g can do.. well There just extras and I didnt need them with my 1g biuld. But after using all the tuning options now. dsmap.. link.. haltec.. megasquirt.. If I had to do it again.. I would put a 1g ecu with dsmap in a 2g piggybacking the stock ecu for emeissions. Mainly for ease as I believe It would perform just as good.

Eitherway.. I will let you know which pins will need attention. I even have all the connectors and pigtails but Im keeping them cause I may try the piggy back idea yet.


Or maybe we could swap cars so you can use your flash ecu.. and I can go back to dsmap! lol

It's gorgeous out! I was encouraging him to go for a drive

I just wish my insurance company was open today..... then i could hit the streets.

I still have to go through all the legal papers, so count yourself lucky I sense a lot of waiting in line for me lol Although I know a privately owned DMV and the people that work there so should go pretty quickly once I get things rolling.

Wish you get her on the road soon! If you're anything like me I've been itching to drive it.

I did this back in the day before they made 1g link. I made an adaptor harness. Lots of solder, lots of shrink tube, and lots of weed and patience.

IT WORKED, and worked well. Its been done and like Ryan said, no tuning advantage these days, just the ability to have more sensor inputs.

What's weed?

Well from what I remember... With weed comes lots of patients!

Were you a doctor prescribing weed?

Did someone say weed?
^_^

Burn outs...

Oh and I could not fid my notes.. but from looking at the ecu pinouts for each ecu.. I remember that the biggest problem was the mpi relays.. Since both ecus use differant relays.. thats where the problem lies. 2g ecus must use the 2g relay etc. I know they got around it.. but I never did.

Haha, really hope this was sarcastic!

I meant with weed... you get LAZY and become tooo patient. Altho.. If I became a doctor and perscribed weed to cancer patients the I assume I would get alot of business!


but I wouldnt
.....
Cause Im not into making burnouts .. unless its with my car!

Bringing this back from the dead. Did anyone sucessfully do it here?


I got a 1995 ecu with ecmlink and sd from a buddy that owed me.

So i'm either gonna try to trade for a 1g ecu with ecmlink or i'm gonna just wire in a adaptor harness. I already have the 2g plugs and a fried 1g board to make the harness.

Just sell it state side.. And buy an ecu. I have a non eprom that needs work.. You could send it to e.g. link to do is and convert.

I have a 1g eprom ecu. it's a matter of more inputs/no leaky caps and the cost of FREE

I have yet to use all my inputs.. My 2g ecu had leaky caps. Just use the 1g ecu.. So much less head ache.

Do it! Sounds like you have all the parts. Just need a couple nights to make the harness.

I'm rocking the evo8 ecu in my 1g. Made my harness the same way, old 1g ecu plug. And some 2g connectors. One of the better mods I've done to my car.

Ya But that's cause your running a flushable ecu. Its more versatile and cheaper.

. Its not like he's saving money, upgrading or making anything easier for him self.. Unless he needs some extra inputs that most people never use.. All he's doing is adding ALOT more headaches to get the same result as if he were to just sell it and buy 1g link.

All done .. 4 hours of wiring...

Jay.. Free(other then my time) is pretty cheap.. i dunno how to beat that

Thomas has told me the 2g's have faster processors, I had it all hear.

I can put pictures up how to do it and such if anyone wants?

You should make a '2g ecu in a 1g dsm' thread.

I'd like to see how it was done.

It was free sure.. But if you sold it.. And sent in your 1g ecu to Ecmlink... You could have made a profit... And saved 4 hours of your time. The processors may be faster.. But I have never heard of that being an issue. I would think if you ever get to the point the ECU is not fast enough... Prolly should upgrade to a real stand alone!


Props on doing it tho.. Effort is sometimes more impressive then the result! How did you deal with the moi relay?

Is it running?

Yeah lets see it !!
flikr or photbucket works.

Haven't had a chance yet. after writing off my truck with rudolph.

But William Lowey did help me thru the whole wiring and such.

I ran pin 8(2g) to pin 56(1g) and pin 38(2g) to pin 66(1g)

Hmm. I thought it was something like 2 pins to 3 pins or something... Would have to go back to my notes.

It's 2 pins. I should be able to confirm this week it's operational in the 1g

Put it in tonight.. swapped all plugs around to 2g firing order and shes running

https://www.facebook.com/becky.parker.923/videos/10154720987292033/

Dunno what happened but boost controller needs fixing now(mbc).. ecmlink est 28 psi.. cars flowing 37lbs/min and the poor injectors are running 118%..


Time to put bigger injectors in and fix the MBC.. Tommorow i'm gonna put wideband and boost gauge in.

Hmm. I can't see the video.. Send it to me on messenger.

Maybe I'll start playing with this idea again. So I can sell my 2g Ecmlink and put dsmap in my 2g.

Sent

Just watched! Nice work!!

Just thought i'd update, I've had zero issues. everything is running great!!!