2g maf in a 1g

[toyotagt1]

can you install a 2g maf on a 1g 1990 eagle talon tsi awd with just wiring the 2g plug up to the stock harness without anything els? and would it work without a problem without a maf translator?

 

[1991BlackTalon]

I ran a 2g maf on my 1990. It worked fine for me. I just have recently switched to a evo 8 maf, do to bigger turbo setup, but yes it did work fine for me.

 

[kspharris]

Yes it will work...there is a write up on how to wire it on these forums somewhere. I had mine where there was the 2g maf plug on one end and on the other end it was the connector from the 1g maf itself. So it actually pluged in without having to cut the stock harness plug off.

 

[92AWDHX40]

A tuning device, do you have one.

 

[burnsee]

do you need a tuning device to run a 2g mas on a 1g?

 

[tayschells13]

Here, this will help you out on the wiring.

2G MAF in a 1G TEL/GVR4

 

[toyotagt1]

A tuning device, do you have one.

no but my mechanic has dsm link dataloger and has tuned my car multiple times before

do you need a tuning device to run a 2g mas on a 1g?

thats what im wondering can you install a 2g maf in a 1g without a tuning device?

Yes it will work...there is a write up on how to wire it on these forums somewhere. I had mine where there was the 2g maf plug on one end and on the other end it was the connector from the 1g maf itself. So it actually pluged in without having to cut the stock harness plug off.

thats what i was going to do because i hate cutting wires especially off the harness

I ran a 2g maf on my 1990. It worked fine for me. I just have recently switched to a evo 8 maf, do to bigger turbo setup, but yes it did work fine for me.

did you have to use a tuning device like dsm link or did you just wire it up and it worked?

 

[92AWDHX40]

Hook it up, it will work but what are your goals? Did you look on here for 2g install i 1g there is a thread for this.

 

[toyotagt1]

Hook it up, it will work but what are your goals? Did you look on here for 2g install i 1g there is a thread for this.

it will work up without a tuning device i just have to make sure before i do it and my goals are 350hp(around) daily driver. Right now i have a fmic, 3in exhaust without cat, tubular header, walbro 255 with fuel pressure regulator and yes i looked at it and it showed how to do the wiring but i did not say if you needed a tuning device or not and that is why i made this tread thanks

 

[92AWDHX40]

Well you should a have a logger at least and a wideband to turn up the boost, you can just throw more air into the system and have a perfectly running car, a tuning device regardless of set up i think. unless its totally stock. Do you have a way to tune it?

 

[toyotagt1]

Well you should a have a logger at least and a wideband to turn up the boost, you can just throw more air into the system and have a perfectly running car, a tuning device regardless of set up i think. unless its totally stock. Do you have a way to tune it?

no i have no way of tuning it but i do have a datalogger and another question could i turn the boost up to 12psi on my 14b safely without a wideband?

 

[92AWDHX40]

You need a wideband so you know for sure thats why its important how are you going to know if you are running too lean, done go guessing about can i run this or that, get the correct tools to do that. Spend the money now or a new engine if you have boost issues or, your running more than 12 pounds if you have innacurcies in you boost gauge.

 

[Indian]

I hardwired mine,and didnt use a harness. All you have to do is count the numbers of the wires and match them up one by one. It's fine unless you want to swap to a different setup. I cut just enough off the plug so I can hardwire the stock plug back on if needed.

 

[toyotagt1]

I hardwired mine,and didnt use a harness. All you have to do is count the numbers of the wires and match them up one by one. It's fine unless you want to swap to a different setup. I cut just enough off the plug so I can hardwire the stock plug back on if needed.

but did you use it without any tuning device?

 

[Silvertune]

With mods list like that you will definitly need a tuning device. Heck, bone stock the car needs a tune.

 

[DSMboostin15]

Before you go replacing the 1g MAF with a 2g MAF, you should know that the 2g MAF flows ~20% airflow than the 1g does. This means that with the stock 450cc injectors, you're going to lean out at WOT. If you swap over to either a 550/560cc injector, little-to-no tuning will be required for the increase in airflow readings.

Also, if you are only running stock boost, i.e. ~12 psi, you don't need to upgrading to a different MAF. The amount of airflow at 12 psi is what the MAF is matched to and will be perfectly fine. The stock injectors are your limiting factor here. They are only good up to ~15/16psi before reaching a duty cycle of ~90% - larger injectors are needed when increasing the amount of airflow going into the engine.

Before you begin to up the boost, you REALLY should invest in the proper monitoring tools to maximize your setup and minimize costly mistakes by making assumptions about what is going on. Spend your money on a wideband before a new MAF.

 

[toyotagt1]

Before you go replacing the 1g MAF with a 2g MAF, you should know that the 2g MAF flows ~20% airflow than the 1g does. This means that with the stock 450cc injectors, you're going to lean out at WOT. If you swap over to either a 550/560cc injector, little-to-no tuning will be required for the increase in airflow readings.

Also, if you are only running stock boost, i.e. ~12 psi, you don't need to upgrading to a different MAF. The amount of airflow at 12 psi is what the MAF is matched to and will be perfectly fine. The stock injectors are your limiting factor here. They are only good up to ~15/16psi before reaching a duty cycle of ~90% - larger injectors are needed when increasing the amount of airflow going into the engine.

Before you begin to up the boost, you REALLY should invest in the proper monitoring tools to maximize your setup and minimize costly mistakes by making assumptions about what is going on. Spend your money on a wideband before a new MAF.

i was planning on putting 550 injectors in when i do the maf upgrade but it seems that im not going to do that untill i get a tuning device and wideband. so what tuning device should i use and what wideband should i use?

 

[Indian]

but did you use it without any tuning device?

Dsmlink v3 and supporting fuel mods,but if you do decide to go that route i'm just letting you know that you dont need to spend the money on an adapter,you can just hardwire.

 

[toyotagt1]

Dsmlink v3 and supporting fuel mods,but if you do decide to go that route i'm just letting you know that you dont need to spend the money on an adapter,you can just hardwire.

thanks for the help

 

[DSMboostin15]

i was planning on putting 550 injectors in when i do the maf upgrade but it seems that im not going to do that untill i get a tuning device and wideband. so what tuning device should i use and what wideband should i use?

As far as a wideband goes, most people use the Innovate LC1 or AEM UEGO. I, personally, have the LC1. It has a 0-5v programmable wideband output and a 0-1v narrowband simulation so you can replace your front O2 if you want. You can easily wire it into the ECU and datalog it if you have DSMlink. The same goes for the UEGO. The downside to the LC1 is that it doesn't come with a gauge, but you can either buy one, use their LogWorks program, or log it in Link to be able to compare it versus RPM. I find that the last option is the easiest.

For tuning, I HIGHLY recommend ECMlink. I currently use the good 'ol DSMlink V2 because I don't have a need to upgrade to V3...yet. The capabilities are excellent and are only surpassed by a standalone (AEM EMS or Megasquirt).

If you want to save some money, you can either find someone local that burns custom EPROMs since you have a '90 and most likely have a EPROM ECU or you can get a used SAFC to fine tune your setup.

 

[invictus]

When i got my 1g the kid had a 2g mas on it with out tuning for it the car ran lean as hell at all times. It idled like crap on start up til it got warm and then was just all out lean which is horrible for your motor. As far as tuning devices i agree with these guys dsmlink will do anything you need from running electronic boost controllers that will adjust boost through the rpms as need(40$ on link for the electric control unit saving hundred form others) ,Nitrous shots when u wanna set them, Speed Density,and if u wanna just get big injectors you can adjust the deadtime on them and they run pretty close to stock(for instance im running 1600s on my 16g combo while i build my new t3 setup)Also you can run your wideband into link for data logging for better tuning.

 

[91stocker]

youve got a pm toyota

 

[DSM_IKE]

I have the 2g maf on my 1g. Ill throw up a pic of the harness you need a little later tonight