3800 Got my DHP today :)

[syP]

Yea, me and Zack went to Charles' house and we got our chips reprogrammed. It was pretty neat. As of now i do not have my pin 21 grounded... what does that mean? i still got the 40mph 3-1 shift and i did not get a chance to max it out, or at least go past 108mph due to rain... but what do i do to ground the wire so the performance shift is always on?? I plan on doing this tomorrow after school.

Thanks alot Charles!
-ryan

Click to read more...

 

[GTPj]

for now mine is grounded underneath the diagonal strut bar(or whatever you call it) diagonal strut brace, the bar that goes over the CAI to the front??.....and perf shift is on all the time........

 

[98 TGP TOY]

Why do you want it to stay on all the time. Sometimes those harder shifts are annoying for daily cruising. Just hook up a switch and ground it under your dash somewhere. Then you can be cool like me and have switches in the little cubby to the left of the steering wheel.

 

[syP]

98 gtp toy,

DO you have intructions on how to do this? Also, where is the 21 pin located... on the PCM or in the Fuse Box? I dont really know what to do so any help is wanted.

thanks
-Ryan

 

[mybluegtp]

its in the pcm and did he tell you if it was 21 clear or blue?

 

[rjaz gtp]

If this is anything like what we were doing to Fish's car on Saturday...
SnM wired up Fish's Perf Shift on his GT and wired it to 21 Clear

This is actually located on the PCM, you will see there are like two large plugs you need to remove those (one Blue and another Clear) and the push the wiring through 21 clear to get the perf shift to work. If there are more specific directions I do not know since this was my first time watching/helping!

I know SnM and others know how to do this maybe they can give you better directions...

-Rich

 

[mybluegtp]

Thats pretty much it and just ground the wire or get a switch and wire it up to that so you can turn it off and on. I had a switch on my GT that I was able to turn it off and on.

 

[GTPj]

the shifts don't bother me at all....this summer i am going to put the switch in but for right now i have to work out some kinks in my neck...and the dhp does help with that

 

[2KREDGHOST]

So you got your DHP huh. Congrats hope you like it.

 

[staceyyearsich]

hows it feel?

 

[Fish]

I only posted it up in your other thread and told you AIM.

21 clear. plug it in and ground it to have it always on.

 

[98 TGP TOY]

The switch would be easy. Just grab a switch from radio shack liked pictured and run the wire from the pcm to one of the prongs and then another wire from the other prong to a ground source. Im sure there is a thousand different switches you can use. Then you can have a secret performance button....hehe...im a dork. But I used the cubby as many people have, its a nice out of the way place to put some switches. Mine are for my fan switch though, not for the pcm. I have a 98, so it came pre-wired with the perf. shift.

 

[syP]

well... i took out the airbox and nder it lays the PCM... i opened one of the covers that has the wires... and i see that slot 21 had an open hole in it with no wire in that... is that where the end of my wire goes... then ijust ground that wire that i manually plug in there?? Pictures would be nice

 

[Ripn12s]

http://www.rivman.com/perfshift.htm

 

[syP]

ohhh... that helps alot... All i need to get is the correct wire (i think i had 12 gauge) and those Packard Electronics FEMALE Connector Pins (GM part #12084913) I think im just going to have it running the whole time.

Is it strage that i do not feel very much difference when it pulls... because i am stock besides that? The only thing i notice is that when i floor it at 40mph, it drops down a gear for like half a second... and the tach reads 5900RPMS on every shift if i floor it. Anyone know why i could be feeling like the DHP didnt do anything besides the 40mph wot thingy.

 

[iliveonnitro]

Switch to 93 octane.

Also, I'm 99% sure GT's have performance shift equivilant on all the time and it doesnt really matter.

Fish - why did you run a perf. shift? Did you notice any difference?

 

[zeez gtp]

ya, the dhp pcm is the most supreme thing ever. thanks charles

 

[Fish]

My shift point was higher with it on. I was shifting at 6500 RPMs. LOL

Plus the skip shift, plus the cool shifter with a button, and the digital DIC lighting up. B) B)

 

[syP]

Wow.. i took it out for another sping tonight.. and that things pulls like a BEAST... i totally take back that post i complained about it. This this is fuggin awesome!! lol.

Wait, so the performance shift on the GT will raise the shift points to 6500?????!?!?

EDIT** James you were right about the 93 octane thing... lol what was i thinking 91 octane.. all here is 87 89 and 93. Sorry about that... BTW.. i filled up my tank with that stuff tonight.. Gotta prep for tomorrow's races

 

[Fish]

I said MINE was doing that. I have to have it fixed.

 

[beyerch]

"Allow me to retort ... "

The old school pcm's had a "super beatdown mode" shift in perfomrnace mode that was around 6200. That was recommended to us as the optimal shift point but we found that it really didn't work all that well so we back it down to 5600 and 5950 respectively.

However, we also wanted to respect the fact that GT guys don't have performance shift and we didn't want to make all of them wire up stuff, so they get all of the other features in EITHER mode, just a higher shift point with the PS wired in.

Hope that helps.

 

[syP]

very much so... thanks

 

[SnM]

make sure you connect it to 21 clear

also, that pushbutton that was posted won't work. that is a momentary switch, and you will only be in perf shift mode when you are holding the button down. a toggle switch is your best bet, but you can also get push-on, push-off pushbuttons.

I can help anyone wire up the pcm. did it for the first time on fishes car. i don't have any of the pins though.

 

[98 TGP TOY]

Yea, I wasnt sure if the button would work or not. I just threw a picture up. But there are plenty of switches at radio shack that you can use.