MAF Tuner schematic help

Howdy,

As y'all know, I'm computer and black-box impaired, so I need some help.

I picked up a Pro-M Maf tuner (I'm not sure of the vintage but the install CD has May '03 written on it).

Where I'm at is that I need to cut the MAF signal return wire (terminal 9 on the PCM - tan/lt blue, IIRC). The MAF-tuner has an orange wire and a white wire to connect the cut MAF-signal wire. I'm not sure which goes to which (I found nothing in the instructions - they assumed you have the optional wiring harness for a plug-and-play).

In case it helps, the two decent references I have seen are:

Article One

and

Article two.

In the first (DSM) article, I can't figure out what he's doing since he has some control box in the mix.

And in the stang mag article, they have an orange and yellow wire, whereas I have orange and white. I didn't want to assume that the white-wire's color simply changed to yellow.

Any help is wonderfully appreciated. Also any feedback (good or bad) or tips would be great.

Thank you!

I'm not sure if anyone will know.

Can someone at least check my logic (deductions made from both articles):

If the yellow and white wire are the same (color change for different years of product), then the white or yellow wire goes to the MAF.

And the orange wire goes to the EEC (per 5.0 Stang's article). In the DSM article, it was ambiguous since the wire goes to that control box. But it would seem logical that the modified signal comes from the Maf Tuner and goes to the control box and then back to the EEC, right?

Is that how you guys read it too? Just making sure my brain has not totally left me before I go out and fry lots of stuff. Thanks you for any thoughts!

I appreciate it Mr Grady.

It took about 5 minutes of reading the 5.0 Stang mag captions to deduce what they did, and then look at the DSM wiring diagram (in case that saves ya some reading-time - I didn't find much for useful info in the narratives of either article). I think I got it right but just wanna make sure (if I had it backwards, I'd kick myself for not asking someone first).

final5-0 said:

Hey J T

Sorry I took so long
but
other peeps had plans for me I did not know about

Are you trying to say the ProM goes in series with that pcm wire you are gonna cut?

The pics don't make a whole lot of sense to me either

Grady

Click to expand...

No problemo Mr. Grady - I know how that goes.

You got it. There are two wires on the Tuner (one is definitely orange in both articles, and the other is a whilte or yellow wire - it varies between the two articles). I just wanted to make sure my deductions were correct so I don't hook those two wires up backwards. I'm not sure what would happen if I did.