Making the switch to SD

[TAL0NTSi]

Alright, I'm another speed density noob, and I'm trying to wrap my head around it. I recently purchased the needed IAT and MAP sensor, as well as the plug and play harness from extreme psi. From what I understand the plug and play harness eliminates the need to splice into any ECU input. Is this correct?

If that is correct, and I'm using the harness, how can I still run the stock MAF to dial in SD? Especially since the harness uses the MAF connector.

I'm sorry if this question has been answered before, but I've been reading for hours with limited understanding.

My set up is updated in my profile.

 

[snowborder714]

You are correct, the harness eliminates any splicing.

If you want to use the MAS to dial in the SD table, you'd have to temporarily wire in the MAP sensor to another input (e.g. MDP) as this is the only sensor needed for the wizard. You'll still have to keep the MAS plugged into the stock plug.

 

[jpmxrider489]

The plug and play harness will make there no need to splice.

Im unsure if you can use both. I dont see why not. Just set up the 2g maf in link and maybe add the sensor and go off the table.

 

[TAL0NTSi]

If you want to use the MAS to dial in the SD table, you'd have to temporarily wire in the MAP sensor to another input (e.g. MDP) as this is the only sensor needed for the wizard. You'll still have to keep the MAS plugged into the stock plug.

How would I go about wiring the MAP sensor into the MDP input. That seems like the most simple solution.

Although, how difficult is it to dial in without having information from the MAF? Or is it even worth trying?

 

[snowborder714]

You'd cut off the MDP plug and then wire in the MAP sensor.

It would make it easier for sure. But that is only if you dial in the MAS really well, as the SD values are basically translating the MAS values. So if you do a hack job of dialing in the MAS, then it'd be a waste of time.

 

[TAL0NTSi]

Got it. Thanks Brian.