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Old 11-02-2012, 06:55 PM   #1
jaros44sr
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Re: PO has me PO'd

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Originally Posted by Dale99 View Post
which msd coil? They make a "oem replacement" one, which is what I'm running. Its just not in the stock location.

Found a pic of my setup from a few years ago online. Coil is still in this location, but everything else is different.

https://sphotos-a.xx.fbcdn.net/hphot..._7371417_n.jpg
Ill have to let you know tomorrow, maybe 6al. Thats where i wanted to mount my coil, above the distri.
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Old 11-02-2012, 10:39 PM   #2
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Re: PO has me PO'd

6al is a controller box which does the same thing as a computer system. IIRC you still need an actual coil.
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Old 11-02-2012, 10:51 PM   #3
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Re: PO has me PO'd

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6al is a controller box which does the same thing as a computer system. IIRC you still need an actual coil.
Yeah, i knew that! Just got busy and forgot to go back and fix my mistake. As soon as i typed it, i knew i was wrong. But, i had a brain fart, and went on to something else
Sorry
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Old 11-03-2012, 11:14 AM   #4
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Re: PO has me PO'd

Hey Dale, my coil is blaster gm pn8226, any closer pics of how you mounted your coil.
Thanks for any help
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Old 11-04-2012, 07:24 PM   #5
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Re: PO has me PO'd

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Old 11-04-2012, 11:30 PM   #6
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Re: PO has me PO'd

Thanks bud, thats about what i was thinking....theres two problems you got me past.

XFI should be in mon. tues., a whole can of worms
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Old 11-05-2012, 07:39 AM   #7
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Re: PO has me PO'd

Xfi??
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Old 11-05-2012, 02:24 PM   #8
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Re: PO has me PO'd

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Xfi??
Hopefully ill show you a pic tommorrow...just found a oem coil bracket on ebay
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Old 11-06-2012, 02:14 PM   #9
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Re: PO has me PO'd

Holy crap Batman, this is not my forte! This mod. is going to take awhile


20121106_123426 by jarosaj, on Flickr
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All parts offered to help are free, unless otherwise noted

Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
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Old 11-06-2012, 03:39 PM   #10
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Re: PO has me PO'd

ohhh, a pcm. I grew up with an electrician, so wiring is not difficult for me. But just take your time, dont rush it.
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Old 11-06-2012, 04:39 PM   #11
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Re: PO has me PO'd

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ohhh, a pcm. I grew up with an electrician, so wiring is not difficult for me. But just take your time, dont rush it.
Every bundle is clearly written, with one way plugs, but just trying to lay it out now. Seems to be the passenger side kick panel may be to best location for mounting the PCM, whatever that stands for...

Consider yourself lucky to have electrical background, it doent come easy to me. Trust me, i will be on the phone alot to the technicians at FAST. First step in the directions states to only run plus and negative to the battery, no intermittent leads any where. Not heeding this advise is the leading cause of problems. Also, running pcm wires to close to the ignition wires, and spark plug wires

Now i have to find about a 4" holesaw, location right above trans. cover

Dont rush it....possibly you havnt noticed when i started my build. lol
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Old 11-07-2012, 02:14 AM   #12
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Re: PO has me PO'd

Is that harness designed specifically for the TPI?
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Old 11-07-2012, 07:48 AM   #13
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Re: PO has me PO'd

You have pcm, or ecm.

PCM=Powertrain control module.
ECM=Engine control module.

Main difference, if it controls the transmission and more (ABS, traction control, transfer case, etc). So that may just be a "ECM".
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Old 11-07-2012, 12:25 PM   #14
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Re: PO has me PO'd

Quote:
Originally Posted by Captainfab View Post
Is that harness designed specifically for the TPI?
Quote:
Originally Posted by Dale99 View Post
You have pcm, or ecm.

PCM=Powertrain control module.
ECM=Engine control module.

Main difference, if it controls the transmission and more (ABS, traction control, transfer case, etc). So that may just be a "ECM".
301100 main harness(gm tpi) 359.95. Why do you ask? Are you going to try and get your system going...

Thanks for the explanation, i have pcm
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All parts offered to help are free, unless otherwise noted

Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
SAFETY FIRST

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Old 11-08-2012, 02:19 AM   #15
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Re: PO has me PO'd

No, just curious if FAST makes a retrofit harness for the TPI for use with the XFI, or if you had to modify one to work.


So the EFI will control an electronic transmission?

Quote:
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301100 main harness(gm tpi) 359.95. Why do you ask? Are you going to try and get your system going...

Thanks for the explanation, i have pcm
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Old 11-08-2012, 11:05 AM   #16
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Re: PO has me PO'd

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Originally Posted by Captainfab View Post
No, just curious if FAST makes a retrofit harness for the TPI for use with the XFI, or if you had to modify one to work.


So the EFI will control an electronic transmission?
Dealer said it would also control the trans., but i dont have the money for that mod., yet.
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Old 11-09-2012, 12:01 PM   #17
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Re: PO has me PO'd

Location,location,location.....

Fourth possible mounting spot. Considered face of heater box, passenger side kick panel, firewall behind glovebox, and now inside glovebox. Leaning towards inside, making new sheetmetal glovebox/pcm mount


20121109_105059 by jarosaj, on Flickr
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Old 11-09-2012, 03:09 PM   #18
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Re: PO has me PO'd

In my old show truck s10 I used the glove box to hold my pcm, HATED IT. I would suggest behind and under the dash.
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Old 11-09-2012, 03:21 PM   #19
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Re: PO has me PO'd

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In my old show truck s10 I used the glove box to hold my pcm, HATED IT. I would suggest behind and under the dash.
Thanks for the input, illpost up a pic of the mount. Should be deeper in the glove box area, closer to the firewall, and then remake cardboard glovebox...lmk, what you think after i make the mount. Just thought i should be able to see the leds

Maybe make the back of the glovebox out of plexiglass
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Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
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Old 11-09-2012, 06:52 PM   #20
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Re: PO has me PO'd

the plexiglass idea is good! Its your truck so do as you wish, just letting you know my experience.
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Old 11-09-2012, 10:07 PM   #21
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Re: PO has me PO'd

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the plexiglass idea is good! Its your truck so do as you wish, just letting you know my experience.
Still open to options, once i pull the glovebox, ill be able to see how much room i have behind it

Just found a new source for TPI parts, they had my two cables, one for coil to distri., and one for power to coil

tpi parts.net
Cape Coral, Fla
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Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
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Old 11-15-2012, 03:48 PM   #22
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Re: PO has me PO'd

My upper plenum is the correct for my year, 90-92, so it has a threaded boss for the bracket on what would be the rear, right side. It has an L-shaped bracket. I made one out of aluminum for a year or so, tell I found a GM one. The map has an elbow that comes out the bottom, and goes right into a vac port.... which your 85 wont have as you mentioned.

You can t some of that off, or I have seen people drill/tap the plenum for extra ports. Or a popular mod is to move the IAT sensor from the bottom of the plenum into the air stream, and then put a hose barb there for more vac ports.

I dont have car with me at moment, so I cant take pics. Will check in a min to see if one of my facebook pics shows it. :edit: nope, will have to take one for you later.
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Old 11-15-2012, 04:14 PM   #23
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Re: PO has me PO'd

Quote:
Originally Posted by Dale99 View Post
My upper plenum is the correct for my year, 90-92, so it has a threaded boss for the bracket on what would be the rear, right side. It has an L-shaped bracket. I made one out of aluminum for a year or so, tell I found a GM one. The map has an elbow that comes out the bottom, and goes right into a vac port.... which your 85 wont have as you mentioned.

You can t some of that off, or I have seen people drill/tap the plenum for extra ports. Or a popular mod is to move the IAT sensor from the bottom of the plenum into the air stream, and then put a hose barb there for more vac ports.

I dont have car with me at moment, so I cant take pics. Will check in a min to see if one of my facebook pics shows it. :edit: nope, will have to take one for you later.
Thanks for the speedy response...i have a larger port along side of my fuel reg.
port, was going to use that. Your right, parts are hard to find, i do have a 'L' shaped bracket that i havent found the home for yet, maybe ill get lucky and it will be my map sensor bracket

Found new tpi parts supplier, just nothing for used parts. Been hanging out at the FAST XFI forum, asking questions and reading. Starting to get a grasp on all this new terminolgy, and what goes where

Take your time on the pic, as i have lots of other things to work on

Edit...the IAT location may be an option, since i need another port for my brake booster
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Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training
SAFETY FIRST

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Jim

Last edited by jaros44sr; 11-15-2012 at 07:15 PM.
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Old 11-15-2012, 04:30 PM   #24
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Re: PO has me PO'd

post a pic of the questionable bracket.

brake booster goes in the left rear of the plenum. Kinda gets in the way of the spark plug wires.
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Old 11-15-2012, 09:38 PM   #25
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Re: PO has me PO'd

ok, looked. As for ports on the plenum, I have..
1. hvac.. pass side
2. charcoal canister.. pass side
3. map.. pass side
4. brake booster.. left rear
5. fuel pressure.. underside where IAT use to be.

If you want any of these full size, give me a pm with your email addy.
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