Link G4 Naturally Aspirated 2.0L Tune

[Rumbuck]

Hey guys,

Does anyone here have the tune for a N/A Stock 4G63 that I can load into a Link G4 Storm??

Just saves me having to butcher apart the (Fairly close) stock Evo III Tune

 

[bazeng]

Still using AFM etc?
It should pretty much be the same.

Fuel map and ign map would be very different if using MAP sensor due to no load above 100kpa.....

Dont worry about butchering, you can just save the evo map and re load it if you need it again...

 

[Rumbuck]

Well, the ECU comes with the stock Evo III tune, I was planning to just use that and then use the quick tune feature in the software, which can be found at:
http://www.linkecu.com/support/downloads/pclink-download

Should run normally under windows, only tried it as far up as Vista, not with 7 or 8, but I have also been running it fine on a Ubuntu based Linux Kernal under W.I.N.E

I mean, I was gonna use the EVO III tune to enable me to start the engine, and then enact the quick tune to have it detect what is missing, eliminate it, and get the ECU to figure out my engine, I have heard mixed results on this, engines that have normal-ish features and add-ons, no worries, but with engines that have weird and wonderful setups, then it's best to get an in depth tune.

 

[bazeng]

Even with an auto tune feature, you will need to find roads where you can hold steady load points in order to give the computer time to tune. You will also need a wide band o2 feed back into your ecu. But I don't think the auto tune will do timing, so manual tuning will still be required.

 

[Rumbuck]

I think this stretch of road may do... http://maps.google.com/maps?saddr=Palmerston+NT&daddr=Katherine+NT&hl=en&sll=-12.477581,130.983186&sspn=0.124867,0.2635&geocode=Fd-RQf8dpafOBymH376ONb3ALDF7ezcLrVC6cw%3BFTlII_8dQDHiByk3g_yHzr-6LDHATyUqqBcCBQ&mra=ls&t=m&z=9

I think all I have is a narrow band, though I could grab a wide band from Supershit or something and whack that in.

 

[to4garret]

supercheap sell widebands?

 

[Rumbuck]

[sup]At a guess[/sup]

 

[bazeng]

You will need to purchase a wideband O2 sensor unit which includes the processor.

I'm assuming the LINK will take in a analog 0-5v signal.

Unless the LINK G4 has a built in processor where you can connect a wideband o2 directly to the ECU.

Might pay to do some research or get somebody who has had tuning experience with the LINKS to set it up for you.

Autotune is not as easy as it sounds. You will need the same conditions.
- steady load
- wideband o2 monitoring
- laptop

The only difference is you dont have as much user input. Saves the tuner (or yourself) punching in numbers to get the desired AFR.

You will still need to set the AFR table though so that the computer knows what AFR you are chasing.

If you need a wideband,

Look for:

1. Wideband that suits the LINK required input for wbo2 (usually 0-5v)
2. What other LINK users have used and worked with Autotune.

I'm using Autronic SM4 with Autotune and an Innovate LC-1. Autotune works fine with this on the street the LC-1 and Autronic doesn't match 100%. AFR readings are about 98% accurate. This is good enough for cruise etc. When we are on the dyno we use the AUTRONIC wbo2 metre because it is much faster and more accurate. In saying this, the AUTRONIC wbo2 metre is about 1k and is quite bulky.

 

[Rumbuck]

Well, here is the link to Link's approved list of sensors:
http://www.linkecu.com/products/InstallationAccessories/Sensors
However they do not have a link to the Wideband O2 that I would need.

Though the G4 Storm does accept 0-5V Analogue and Digital inputs...I went for the classier model than the entry level, gives me more room to expand in the long run.

Link to the G4 Storm Brochure: http://www.linkecu.com/products/engine-management-ecus/g4-photos-files-etc/G4%20Storm%20brochure.pdf
Link to the Installation Manual: http://www.linkecu.com/support/documentation/g4-engine-management-documentation/G4Install

Page 37 says I need a WideBand sensor, so that's a must. 0-5V Wideband Aftermarket Analogue sensor. I do however need a controller to allow it to talk to the ECU.

Wideband exhaust gas oxygen (EGO) sensors are able to accurately measure air/fuel ratios over​

a very wide range from very lean to very rich. This makes these devices very suitable for tuning​

purposes.​

A wideband sensor can be used to run Closed Loop Lambda (CLL) for improved economy and​

emission. A wideband sensor is a necessity if Quick Tune (refer to the PCLink Tuning Software​

online help) is going to be used to tune the engine.​

Any Analogue Volt channel may be used to accept the signal from a wide-band EGO sensor​

controller. Note that G4 ECU's cannot accept the signal directly from a wide-band sensor. A​

wide-band controller works as an interface between a wide-band O2 sensor and the ECU. The

controller should connect directly to the sensor and output a voltage between 0 and 5V.​

The sensor calibration (the voltages that correspond to given air/fuel ratios) must be known and​

this information must be entered into the ECU via PCLink Tuning Software.​

The recommended Wideband Oxygen Sensor controller is the Innovate LC-1 Wide-Band​

controller

However, Page 36 does say this:

Narrow Band Oxygen Sensor​

A narrow-band exhaust gas oxygen (EGO) sensor is very accurate at air/fuel ratios near 14.7:1​

(for petrol). At richer or leaner are/fuel ratios there is a very small output signal change for large​

changes in air/fuel ratio. This makes the narrow-band sensor very good at detecting either a lean​

or rich condition, but not very useful for detecting how lean or rich. For this reason, a narrowband​

sensor is not recommended for tuning purposes. However a narrow band sensor is​

suitable for running Closed Loop Lambda (CLL). CLL allows the ECU to self tune at cruise to​

improve economy and emissions.

Now, I also found the link to the Innovate site for the controller: http://www.innovatemotorsports.com/

However, at $199 (U.S I think) it's not cheap, however, is there any out there with similar, if not as good charicteristics that are cheaper?

OR

Do you guys know anyone selling a decent wideband second hand??

 

[bazeng]

I think I actually have an lc1 in my spares box. I might sell if your interested.

 

[Rumbuck]

Yeah sure mate, pm me with a price

 

[chowetime]

have you looked at the AEM wideband digital these are very easy to fit up and are suitable for all AM ecu

 

[Rumbuck]

I ended up getting a Bosch one off eBay for a reasonable price.