link g3

[tez n u]

Hey guys, do link g3s have an intake temp sensor like the g4 or not really??

[boon]

Considering G3s can be flashed to G4 firmware, and IAT is a pretty important sensor, I\'m going to say yes they do.

But ring Link if you want to be sure. They\'ve always been really helpful to me.

[Guest]

Yea bro they do have them. You can buy them and then have to wire into the loom

[funkytown]

so to clarify, they have the ability to take IAT as an input.

But you buy the sensor separately and wire it in.

Often you can leverage the old MAF loom for it so saves you a heap on wiring.

[Guest]

Incase your interested it\'s only 200 dollars to update the g3 firmware to g4, any link tuner can do it for you.

[Pappu1]

i have heard that not all g3 are able to be flashed to g4

confirm that from link as well

and no u dont need iat sensor but its a good idea to run it

[Guest]

I was under the impression if you remove maf you have to run iat but may only be in v7- as they have one in the maf.

[Pappu1]

Can be tuned without iat

Ecu just assumes a certain temp all the time and there is no compensation for air temp at all

I guess if ur tune is very very safe then u cud get away with no iat difference

[Johnnynz]

I was told make more power with IAT by having a more comprehensive tune.

No IAT means you have to allow for all conditions and cant have varying conditions based on intake temp. Also means you cant have some extra safeguards in place. For instance IAT goes over a certain temp and my boost cuts at 7 PSI to save the engine.

[funkytown]

 SP00N said:

Can be tuned without iat

Ecu just assumes a certain temp all the time and there is no compensation for air temp at all

I guess if ur tune is very very safe then u cud get away with no iat difference

yup but is a super bad idea to do this!! haha.

and to your other question yes some G3s, i think they are the LEM version cant be flashed to g4 easily.

to EVOWRX if you remove MAF - wouldn\'t you WANT to run IAT & MAP... ....??? how else would it work bar the super safe non IAT map which smokes motors real easy.. ask gregooo

[Guest]

 funkytown']

[quote name='SP00N said:

Can be tuned without iat

Ecu just assumes a certain temp all the time and there is no compensation for air temp at all

I guess if ur tune is very very safe then u cud get away with no iat difference

/quote]

yup but is a super bad idea to do this!! haha.

and to your other question yes some G3s, i think they are the LEM version cant be flashed to g4 easily.

to EVOWRX if you remove MAF - wouldn\'t you WANT to run IAT & MAP... .... ??? how else would it work bar the super safe non IAT map which smokes motors real easy.. ask gregooo

Jon you can run the iat which is just 2 wires in the maf so if you have stock loc turbo its easier than shelling out to buy one and welding bung etc. But it is pre turbo but think theres one post turbo on mani isnt there? I meant run the stock one not dont run one.

[funkytown]

eeerrr the whole point is to have it post intercooler (or if you run TMIC) put it in the core close to the throttle body.

but yes, you reuse the MAF loom. the bung comes as part of the IAT sensor last time i got one, the AEM one that is.

[Guest]

Meh my point was yes you need to run one if run a map tune afaik. Just wondered why pre v7- didnt run one stock obviously maf not so picky.

[funkytown]

id hazard to say one in the intake would enable a much more precise measurement of air passing the MAF using temp as a derivative of density, so engine tune is understanding intake better = more fuel efficient factory tune.

IAT post intercooler would give ecu ability to dynamically adjust engine timing closer to the det line. the two cant be transposed in their locations for function.

i would guess.

[Johnnynz]

On the G3 you may need an extended Loom to hook up the IAT.

My tuner was going to plug the IAT into the AFM loom but it didnt work because I was using such an early G4, it was a V1 board. Setting up the IAT is no drama with the exnteded Link Loom however, just a wire from sensor to your ECU.

[tez n u]

This g3 has its own link box so doesnt sit in the factory ecu box......just wondering if this changes its ability to run extending wiring from air temp sensor to ecu? Also its a 2004 model and came out September 2004 so dont know how that affects its ability to run on g4 firmware.

[Guest]

 funkytown said:

id hazard to say one in the intake would enable a much more precise measurement of air passing the MAF using temp as a derivative of density, so engine tune is understanding intake better = more fuel efficient factory tune.

IAT post intercooler would give ecu ability to dynamically adjust engine timing closer to the det line. the two cant be transposed in their locations for function.

i would guess.

Always wondered about heatsoak on the IAT one but mustnt do if dont get it with factory ecu.

I had the expansion lead with mine so no problems didnt need to play with to much.

Avi just ring simon@link with the serial number theyre bloody quick lads down there 2min phone call. You need to go to link now for moar powar?

[Johnnynz]

 tez n u said:

This g3 has its own link box so doesnt sit in the factory ecu box......just wondering if this changes its ability to run extending wiring from air temp sensor to ecu? Also its a 2004 model and came out September 2004 so dont know how that affects its ability to run on g4 firmware.

The Extended Loom plugs into a plug on the circuit board of the Link, If theres no hole to run the loom out of the box just cut one I suppose. Goes without saying probably but don\'t leave the Circut board in while cutting said hole.

[Kiwi_Fozze]

So that\'s what i\'ve been doing wrong...

[tez n u]

Yea bit more power and getting a bit of stalling issues with gt35r and stock ecu.....

[Minaj]

 tez n u said:

Hey guys, do link g3s have an intake temp sensor like the g4 or not really??

Damn avi, i thought it was a g4? expecting 400kw ? + lol

[Guest]

If it is upgradeable then it is a g4...

Avi I have an evo 4- cometic head gasket you can have real real cheap if you want a spare? pm if keen