Resolved 2G MAF on 1G?

[91BlackLaser]

I have a 91 Laser and want to swap to a 2G maf. I was just wondering what I have to use for an intake tube and if anyone here makes the plug and play wire harness for the swap.

Thanks

 

[jepherz]

Depending on how you plan on correcting for the change, I would almost recommend getting a 3g mas. I got a brand new one with a connector for like $90. The 3g uses the same filter adapter as a 2g, and has the same size outlet as the 1g, so you can still use your factory intake pipe.

If you're stuck on the 2g, you can get either a 2g intake pipe or check dejontool or ebay for intake pipes.

 

[91BlackLaser]

So a 2G stock intake tube or an aftermaket one will just slide right in? The car has a GM Maf and maf translator in it right now but the guy who owned the car before wanted it back. We have 550 injectors and we putting in a SAFC II. I think it will run ok after that because it runs like crap right now.

 

[titogs95]

So a 2G stock intake tube or an aftermaket one will just slide right in? The car has a GM Maf and maf translator in it right now but the guy who owned the car before wanted it back. We have 550 injectors and we putting in a SAFC II. I think it will run ok after that because it runs like crap right now.

For wiring you shoudl read this
You can use this

For 2g mas pipe fitting 1 (go to intake pipe)

You will be fine. once you put the MAS it will run leaner againg and will compesate the Injectors. but is good to have a datalogger to tune the fuel trims.

If I where you I would get a GM Maf and a Maf-t. instead of the s-afc II and 2g MAs....

 

[talontsi902]

but if he gets the maf-t and gm then he dont even need the 2g mas you can just run something like a 3" air fiter with a intiake pipe so if i was you i would just buy the maf-t set up and get rid of the 1g or 2g mas all together

 

[ChvyKc]

but if he gets the maf-t and gm then he dont even need the 2g mas you can just run something like a 3" air fiter with a intiake pipe so if i was you i would just buy the maf-t set up and get rid of the 1g or 2g mas all together

Correct, just to let you know, the 2G MAS will fit in the 1G intake tube. I posted this same thing about four months ago and I got mine to fit in there. It is a PITA to get on there though, so be ready for a fight. I also wanted to add that you can use the plug from a 1G resistor pack, it is the same plug as the 2G and all you have to do is move one wire over (which I also did).

 

[dsmsucks]

I did the swap and let me tell you! The bov is louder, better throttle response, and better top end pull!!

Also what is a 3g maf?

 

[91BlackLaser]

This car is for my 16 year old son and it already has 14.3 @102 timeslips before cams and a few other mods. I don't really want to build much more power I just want it to right good. I pulled the GM stuff out today and put the 1G maf back on for now and the car runs so much better.

 

[91BlackLaser]

Correct, just to let you know, the 2G MAS will fit in the 1G intake tube. I posted this same thing about four months ago and I got mine to fit in there. It is a PITA to get on there though, so be ready for a fight. I also wanted to add that you can use the plug from a 1G resistor pack, it is the same plug as the 2G and all you have to do is move one wire over (which I also did).

What did you do to join to the 1G plug? Did you just cut the plug out all together? Do you have pics of what you did?

 

[ChvyKc]

What did you do to join to the 1G plug? Did you just cut the plug out all together? Do you have pics of what you did?

Yes, I just cut the stock plug off and soldered the 2G plug back on it. I don't have any pics of the car right now. I am fabing up pipe for my supra smic so everything is apart.

Also what is a 3g maf?

It's the air flow sensor off of a 3G eclipse (2000+)

 

[91BlackLaser]

Yes, I just cut the stock plug off and soldered the 2G plug back on it. I don't have any pics of the car right now. I am fabing up pipe for my supra smic so everything is apart.



It's the air flow sensor off of a 3G eclipse (2000+)

Is the 3G plug and play?

 

[talontsi902]

Correct, 2G MAS will fit in the 1G intake tube. I posted this same thing about four months ago and I got mine to fit in there. It is a PITA to get on there though, ).

i would love to know how the hell you got it on there and some pics i tryed for about 5mins and then realized i was nuts for even trying theres no way to fit that thing on there.

my 2g mas has a ovel inlet and my 1g mas has a round inlet that goes to the intake pipe so if it realy does fit let me know how please so i can save some money for a lil while

 

[91BlackLaser]

Correct, just to let you know, the 2G MAS will fit in the 1G intake tube. I posted this same thing about four months ago and I got mine to fit in there. It is a PITA to get on there though, so be ready for a fight. I also wanted to add that you can use the plug from a 1G resistor pack, it is the same plug as the 2G and all you have to do is move one wire over (which I also did).

BTW... what is a 1G resistor pack.

 

[talontsi902]

hes talking about the transiter it by your plug coilb its just a lil black box about an inch wide bolted to a small bracket

 

[ChvyKc]

I will have to take some pics of both of them. I tried to send you a PM back but it said that your inbox was full. Let me get done eating and I will break the camera out.

The 3G MAS is not plug and play, you are going to have to solder the wires in just like you would with a 2G.

Update: Pics added, I also took a pic of a resistor pack so you would know what it looks like. I just happen to have one sitting on the shelf in my garage.

 

[91BlackLaser]

Are the wires for the 2G MAF the same color code as the 1G MAF. So is it just a matter of matching colors and connecting them? Also, the car is a PIG on fuel. It got 100 miles on almost 3/4 of a tank! The car has a 255lph fuel pump, 510cc injectors and cams. Why is the car using SO much fuel?

 

[91BlackLaser]

I know the plug issue has been beat to death, but I need to know one thing. I am going with either BPR6ES or BPR7ES gapped at .028" and need to know what is better for my car. It has dyno'd at 225WHP before the cams and injectors. I will be adding the 2G MAF and SAFCII. The car has a stock turbo and is running about 15-16psi. Which plug should I run? I think the car will be at about 250WHP now.

Thanks

 

[jepherz]

I have heard that you want to go one plug colder for every 100 hp you are adding. Not sure who agrees with this, but that's just what I heard.

I personally hate the idea of running a gm maf setup. If you stick with the mitsu OEM stuff, you're going to have a much better running car and if you go to something like the 2g or 3g maf, you can still run as much air through it. As you noticed, the car ran a lot better with the 1g mas back in.... Another thing people don't usually consider is that you won't be running in the correct timing tables when you use the MAF translator like you would if you have an eprom burned for a 2g or 3g mas.

As far as the fuel hog issue goes, is this with the 1g mas? Maybe the tune you had on the MAF translator was super rich? Also, do you have an aftermarket fuel pressure regulator? This is something you will need with the 255 pump. You should also get a palm (logger) setup so you can look at your fuel trims and start to diagnose your fuel comsumption problem!

Good luck.

 

[ChvyKc]

Are the wires for the 2G MAF the same color code as the 1G MAF. So is it just a matter of matching colors and connecting them? Also, the car is a PIG on fuel. It got 100 miles on almost 3/4 of a tank! The car has a 255lph fuel pump, 510cc injectors and cams. Why is the car using SO much fuel?

Run the BPR7ES's on your car. You do not want to run 6's.

The reason that you are getting crappy gas mileage is because you are overflowing your stock fuel pressure regulator. I ran into the same problem with my 255HP. I went from right around 14 mpg to 26 after I put the Aeromotive on there. Your stock fpr is not going to be able to handle that 255 and is actually going to raise the fuel pressure more than 1:1 because I can't get the fuel out as fast as it is coming in.

I actually ran into problems with the car wanting to hit fuel cut with the stock fpr, I don't know what that was about but the fpr fixed it.

 

[91BlackLaser]

What type of AFPR should I get?

 

[jepherz]

The reason that you are getting crappy gas mileage is because you are overflowing your stock fuel pressure regulator. I ran into the same problem with my 255HP. I went from right around 14 mpg to 26 after I put the Aeromotive on there. Your stock fpr is not going to be able to handle that 255 and is actually going to raise the fuel pressure more than 1:1 because I can't get the fuel out as fast as it is coming in.

I actually ran into problems with the car wanting to hit fuel cut with the stock fpr, I don't know what that was about but the fpr fixed it.

The stock FPR won't necessarily raise boost more than 1:1 becuase it is going to be a higher pressure all the time.

Not sure why the fpr would fix fuel cut either, as the reason for fuel cut has nothing to do with fuel supply ??

I would recommend either a SARD AFPR, or an Aeromotive, as they are both trusted, good quality units with 1:1 raising ratio. The Aeromotive uses AN fittings, where as I THINK the SARD uses NPT. Depending on how much money or how you are going to set it all up, this may play into your final decision.

 

[ChvyKc]

The stock FPR won't necessarily raise boost more than 1:1 becuase it is going to be a higher pressure all the time.

Not sure why the fpr would fix fuel cut either, as the reason for fuel cut has nothing to do with fuel supply ??

I would recommend either a SARD AFPR, or an Aeromotive, as they are both trusted, good quality units with 1:1 raising ratio. The Aeromotive uses AN fittings, where as I THINK the SARD uses NPT. Depending on how much money or how you are going to set it all up, this may play into your final decision.

Yeah, I'm not for sure why it fixed the fuel cut either. I may have not been fuel cut by the ECU but it would buck under full throttle before I put the fpr on there. It would also buck under part throttle as well though, so I don't know what was causing it, I just always figured that the added fuel pressure was making the ECU cut fuel but maybe not. It was one of those things that I never figured out and was fixed by something that I needed anyway.

I would suggest the aeromotive also, that's what I have on my car and it works great.

 

[jepherz]

ChvyKc, are you sure it wasn't just misfiring from too much fuel? Most people think they are hitting fuel cut when they are nowhere near usually. Remember, it's like hitting a brick wall If you hit fuel cut, your IDS will go to 0.

 

[Eastern Brigade]

Isn't their a VFAQ on this? A 2g mass is a good upgrade to a 1g as far as I know.

 

[ChvyKc]

Isn't their a VFAQ on this? A 2g mass is a good upgrade to a 1g as far as I know.

http://www.vfaq.com/mods/2GMAF-1G.html

That's the link that I used to put mine on and just to let you know it made a huge difference over the stock one at 19 pounds. I know that I was overflowing that stock one and when I went to the 2G it was like a whole different car.