ECM and gauge gauge wiring and throttle cable info: 9-4-08

MalibuRacing

Top Fueler
May 5, 2003
3,465
0
36
www.maliburacing.com
This really isn't much to report, but I thought I would post it for those that seem to be interested. I did manage to get a little done last week before the stomach virus hit me :-& :

Below is the battery +12V terminal box that mounts on the alternator bracket. It is from the Tahoe harness, and originally distributed power from the battery to the starter and alternator. I moved the Malibu factory wires that were connected to the battery terminal of the starter to this location. The factory Malibu wires connected here provide all the power to accessories, etc. I hate having a big bunch of wires running near exhaust, so I relocated them here. Also, the wire that is not connnected in this picture (yet) is for the fuel pump relay.
battery_terminal.jpg




Here you can see "roughly" where the PCM is going to be located on the driver side fenderwell. I need to figure out a way to mount the PCM. I have the Tahoe PCM mount, but it includes a huge fuse panel and takes up too much space. Any suggestions on mounting?
pcm_loose.jpg





Here is a close-up of the fuel pump relay and some inline fuses that I installed. One fuse is for the battery power to the fuel pump relay. The other 3 fuses are to power different ignition +12V lines that goes to the PCM, Injectors, O2 sensors, other sensors, etc. The guy that did my harness broke it out into 3 separate connections. Each one has a fuse.
fp_relay_fuses.jpg





Here is a shot of the Lokar 36" LS1 throttle cable. It worked out pretty good. I had to use big flat washers on the firewall and also on the cable bracket because the hole in the firewall was too large and the throttle cable bracket was a large square hole. Looks good anyways. Easy to install, no serious complaints. If you look at the exhaust manifold, there is a hole or location for the smog pump tube. I have fabbed "block off plates", but haven't gotten the bolts yet. I'll show that later.
throttle%20cable.jpg


OK, moving inside the car... I removed the gauge pod. Here you can see the factory connector in the bottom right hand corner. This connector has all the signals for the instruement cluster, such as: turn signals, high beam, gauge lights, idiot lights (not going to be used), emergency brake light, etc. If you notice, there is a group of wires in a black sheathing coming out to the left of the cluster connector. These are the wires coming from the PCM/engine harness.
dash_pod_removed.jpg


I'm leaning heavily toward using the Nordskog digital gauge package. It is a direct bolt-in replacement for a G-body, has all the gauges, turn signals, high beam, emergency brake light, etc. Since I need an "electrical" speedo (using PCM VSS signal), this makes even more sense. After pricing the gauges, then mounting on a custom plate, wiring etc., this just seems to be a nice solution. It's as cheap or cheaper than gauges, looks pretty cool and will be easy to wire all the gauges and calibrate the speedo. It also comes in different colors (red, green, amber, blue).
dp9255_lg.gif
nrd-dp9255-b_w.jpg


Link here for more info: http://www.nordskogperformance.net/products/auto/dashpanels/detail/dp9255.htm




These are the wires coming out from the sheathing. They include VSS (speedo signal), TCC (torque converter control) lockup disable, tach signal, OBDII signal and SES (Check Engine) light.
interior_wires.jpg





Last but not least. I got the new brake switch installed and partially wired. The brake light wires are connected in this picture. I had to remove the factory Malibu connector and install spade connectors to connect to the new switch. I still need to connect the TCC wire and a +12V signal that will disable power to the torque converter lockup when the brake pedal is pressed. The switch is from a 1996 Camaro, bolts right in, and is only $6.00 at Autozone:
brake_switch.jpg



OK, that's it for now. I know, I'm slow as molasses, but we're making steady progress. I'm ready to get this thing fired up and running! Until next time.....
 

388bu

Top Fueler
May 27, 2003
3,228
0
36
Huntley, il
www.shiftn6.com
Re: Small update: 9-4-08

Good stuff. Thanks for documenting all of this.

I keep thinking more and more about the LSx swap and will be doing it someday. Im sure all these threads will come in very handy then.
 

Stangboy

Dragway Regular
Jan 27, 2004
833
0
16
Ky
Re: Small update: 9-4-08

Is it the s10 blazers that have the nifty computer box thats under the hood, may check that, about as neat as underhood can get... looking good. As soon as I get everything moved and bought on my new house, I plan to make some progress.
 
A

Anonymous

Guest
Re: Small update: 9-4-08

coming along quite nicely. Im sure it'll be a great DD'er once its done, plus these LSx engines are real easy to make power out of if he wants more down the road. on that 5.3 intake/exhaust and a cam, and with that 5.3 you could be making 375+ at the wheels depending on how radical of a cam you went with.
 

80ECLT

MalibuRacing Junkie
Nov 21, 2006
3,927
0
0
Sheboygan Falls, Wisconsin
Re: Small update: 9-4-08

mbingha said:
coming along quite nicely. Im sure it'll be a great DD'er once its done, plus these LSx engines are real easy to make power out of if he wants more down the road. on that 5.3 intake/exhaust and a cam, and with that 5.3 you could be making 375+ at the wheels depending on how radical of a cam you went with.

Its a 4.8 he's putting in there.
 
A

Anonymous

Guest
Re: Small update: 9-4-08

80ECLT said:
mbingha said:
coming along quite nicely. Im sure it'll be a great DD'er once its done, plus these LSx engines are real easy to make power out of if he wants more down the road. on that 5.3 intake/exhaust and a cam, and with that 5.3 you could be making 375+ at the wheels depending on how radical of a cam you went with.

Its a 4.8 he's putting in there.

oops thought it was a 5.3, still same goes for it being an LS based block, pretty much everything is interchangeable, and easy to make some power.
 

StreetBu

MalibuRacing Junkie
Mar 21, 2004
4,158
3
38
Upstate NY
Re: Small update: 9-4-08

How's it going Phillip? Are you feeling any better?
 

slimbo

Moderator
May 21, 2007
4,223
0
0
www.yellowbullet.com
Re: Small update: 9-4-08

lookin great phil!
 

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