fast951

No, we do not use the GM 3bar map sensor (which is actually less than 3bar).

The MAP sensor we use runs on +12Vdc power, while most off the counter MAP sensors run on +5Vdc. Our MAP sensor records actual 30psi boost.

The MAP sensor we use does have a Weatherpack connector, so it can be installed in the engine bay.

clangjr

I am so glad that I dragged my feet on upgrading to a MAF. These additions just solidify my decision on which way to go.

2bridges

YES I DID!

unfortunately I cannot provide an feedback yet as it is not installed. soon, very soon!

mtnman82

Me likey, please add me to the 'upgrade' list John. I tried to PM you, but I'm guessing your mailbox is full?

Randy V

Stick.

Please let me know when this announcement is complete.

fast951

Thanks you Randy.

fast951

Please email not PM, thanks.

kevincnc

John,

Can the the MAP sensor be wired into the piggyback in addition to the DME to log boost?

I'm in line for an upgrade

Jeremy Himsel

Put me in for an upgrade as well.

fast951

Yes you can, this is how you trigger overboost. MAP sensor will be connected to both DME and PiggyBack.

Got your email and replied.

Thanks.

fast951

I already had you on the list

Spidey944

What about those of us with a MAP sensor already being used for datalogging reasons?? Like the Zeitronix type set-up?? This would require us to install another MAP sensor for the DME to recognize? The one that Zeitronix sells is a 3 wire/3 bar as well, but I am not sure on the specifics beyond that.

fast951

Good point, we already looked into this. However to keep R&D cost down we can only support the MAP sensor which we provide. As you can tell the boost curve must be programmed into the DME so swapping MAP sensors will not work. Actually the V-FLEX software will not be sold without the MAP sensor which we provide.

pete95zhn

I guess that you all want to see how it looks like. I did some wiring today and took pictures. I've got enough of additional eloctronic gadgets that can't be removed easily if the harness has to be pulled out, so I did quick-release connections between the DME-engine harness and auxiliary units. Contrary to John's instructions I soldered all wires to pins inside the DME plug. I opened it pulled out each pin one at the time, soldered the wire and pushed it back again. The few wires that require cutting/splicing are yet to be done outside the 35-pin.

Top: Detail from the connection.
Bottom: VRPB + WS + MAP WS harness is open from the coil end, I'll use my previous WS-coil and it's connector.

fast951

Hi Petri, it looks good. On the DME I use for testing I wired (actually TT did most of the wiring) directly on the pins inside the DME. Wasted Spark, Monitor, Motronic Editor and a few more "secret" things!!

The DME wire that is used for the MAP signal MUST be cut in the harness itself. It's fine to solder on the pin inside the DME, just make sure to cut the wire on the harness side.