Remapping VN ecu

[Burning rubber]

Hi guys, I wanna remap my VN ecu so it runs leaner... I want a nice light grey exhaust not a black one... and a heavier pocket
Is there some way I can remap it or do I need to find an aftermarket ecm?

It’s a stock SPac V6 sedan with an auto

 

[losh1971]

You need your memcal retuned. BTW black exhaust is quite normal since Super is no longer available.

 

[Burning rubber]

You need your memcal retuned. BTW black exhaust is quite normal since Super is no longer available.

I thought black exhaust was normal on all newer cars

 

[Immortality]

You'll never get rid of the black exhaust unless you run leaded fuel....

Remapping is easy enough, get yourself a UV eraser and chip burner. Download Tunerpro and the relevant tune/definition files from the PCMHacking forum and go for gold.

 

[losh1971]

I thought black exhaust was normal on all newer cars

then why are you trying for a grey exhaust?

 

[Burning rubber]

You'll never get rid of the black exhaust unless you run leaded fuel....

Remapping is easy enough, get yourself a UV eraser and chip burner. Download Tunerpro and the relevant tune/definition files from the PCMHacking forum and go for gold.

Aeroplanes run a grey exhaust
Dad has 2 cars and they both have a grey exhaust

They are both carbureted but that shouldn’t make any difference

then why are you trying for a grey exhaust?

Because I want my car to run lean (grey) not rich (black)
All new cars are tuned in the name of the environment, but when I look at the exhaust I think otherwise

 

[Immortality]

Planes still use leaded gas.

My old 308 loved avgas and got a dose with every tank of the unleaded stuff that made it run like crap. I wouldn't be surprised if your old man is topping up his car tanks at the airfield...

 

[losh1971]

Like i said grey exhausts pretty much ended once they discontinued super. Planes run similar fuel to super hence the grey exhaust. If you want grey exhaust then yeah remap your own chip and lean it right out. Once you destroy your engine you will work out that leaning out is actually a bad thing.

 

[Burning rubber]

Planes still use leaded gas.

My old 308 loved avgas and got a dose with every tank of the unleaded stuff that made it run like crap. I wouldn't be surprised if your old man is topping up his car tanks at the airfield...

Planes used to run leaded gas... now it’s removed but still a higher octane

He does top up at the airfield
But I drove one for over 300kms and used 91 octane and got the same result
The planes will have a black exhaust if they run rich fuel mixture but we most of the time lean them right out

 

[losh1971]

Pretty hard to get Avgas in Australia. Even with a permit to go on airfields they won't let you fill up a jerry can, unless its aviation fuel approved container. Used to be easier to get avgas 15 or so years ago at the race track until they banned the sale.