Thread: DIY Map/Maf enhancer / manipulator

Originally Posted by disco_ute

Np mate. I am home 1st half of jan

That works well for me as I've got to have it sorted before Aus Day.

Originally Posted by Jazzman

That works well for me as I've got to have it sorted before Aus Day.

Jazzman, don't want to be cruel, but Solution to all your problems. Remove all the mods ,chips boosts and return it to standard, then all your woes will be nil.
Throw the nanacom away, too many people spend too much time worrying about figures. Problems start when people play.
Cheers,
Mars ( PS listen to your dad also)

Originally Posted by Roverlord off road spares

Jazzman, don't want to be cruel, but Solution to all your problems. Remove all the mods ,chips boosts and return it to standard, then all your woes will be nil.
Throw the nanacom away, too many people spend too much time worrying about figures. Problems start when people play.
Cheers,
Mars ( PS listen to your dad also)

Where is the fun in that... std td5s are slow

Sent from my SM-N910G using AULRO mobile app

Originally Posted by disco_ute

Where is the fun in that... std td5s are slow

Sent from my SM-N910G using AULRO mobile app

Slow but more reliable. And it depends on what you call slow?
For gods sake it's only a small engine carrying a heavy load.
Never seen a Donkey entered into the Melbourne cup.
No there not designed for that.
Assops's "the Tortoise and the Hare" The tortoise got there better.

It's like overclocking a computer CPU, go too far and it starts to become unstable.
Changing factory variables on vehicles starts a few problems, then the DYier starts to get different readings and expects them to to come with in spec even though they modified the vehicle from factory spec

Just my 2 cents worth,
Have fun with it
Cheers,
Mario

Lets try and keep on track

You are a great laugh Mars. But those who don't play don't learn.

Update:

I fitted a 4.7V Zener diode between C0149-2 MAF output Sensor/Variable Voltage (Brown with orange trace) and C0149-1 Ground (Pink with black trace) TD5 colour code.

The cathode (end of zener diode with line, normally a black line on an orange body zener diode) of the diode goes to the positive, in this case the MAF output.

My results were successful voltage clamp but at 4VDC. This is too low as it equates to 350kg/h on my Nanocom with the VDO MAF.

I've measured the voltage at 4.8VDC for 630kg/h. So even if it clamped at 4.7V it would have been slightly too low, approx 0.3VDC)

So... Why did the 4.7V zener clamp at 4VDC, i'm guessing the ground is not true ground as it is via the ECM. (or the diode is faulty) Either way 4.7VDC is slightly too low anyway. (To be optimistic i'm assuming my ECM is OK as I've got no reason to suspect it isn't)

So i'll try a 5.1V zener shortly and test the results.

P.S I'm up to 65 cents so far.

Beat me to it! Did you use a resister?