The last piece of the pie, before I can get a guy to come tune my car and get it running is the gauge cluster.

If anybody on here has a chiltons or helm or GM manual. I would like to get pic of the 2 connectors behind the gauge cluster.

They should look like the one below, but these are for a camaro. I need ones for a firebird. I tried to repin it yesterday but blew the Inst fuse.

I am hoping somebody has a 1991 350 and has a manul to work on the car. Please help!!!

When I swapped in my 140 cluster, I just pulled out the stock one and slapped in the 140 cluster. Everything worked and I didn't need to repin anything

good luck with it

-jason

My 92 manual shows the only exception to the stock pinout between the engines is for a L03, and then only the wire color changes

The pinouts are the same otherwise

I can get a pic if you want

92 manual page 8A-81-12

In a nut shell, Jason is right, plug the new cluster in and it should work. I hope you didnt change the pinout beyond what you can remember and undo

My current gauge cluster is a 82 80 MPH . I checked its way different from the 1991 camaro diagram I have.

If u have one from a 1992 firebird , I think that would be close enough.

It would be great if u could post the diagrams.

Thanks a lot in advance.

Well a camaros guage layout is completely different than a firebird guage layout.

and I'm confused, are you replacing an 82 firebird guage cluster with a camaro guage cluster???

-jason

Hi screeming, my scanner is down but I hope this helps. This is from a 1991 firebird service manual.
connector C1 (lower connector)
1 tachometer , white wire
2 ground from hi beam LH turn RH turn and cluster, black
3 cluster illumination, gray
4 security indicator, gray
5 coolant temp gage output, dk green
6 n/a
7 n/a
8 oil pressure gage output to fuel pump/oil pressure sender, tan
9 ignition power from gage fuse, pink/black
10 n/a
11 n/a
12 ground from seat belt indicator/voltmeter, black
13 seat belt indicator, yellow
14 vehicle speed signal, gray (except vin E, tan)

connector C2 (upper connector)
1 brake warning indicator, tan/white
2 ground, black
3 instrument cluster illumination, gray
4 n/a
5 n/a
6 n/a
7 LH turn indicator, light blue
8 hi beam indicator, light green
9 RH turn indicator, dk blue
10 fuel gage output to sender, purple
11 supplemental inflatable restraint (air bag), brown
12 n/a
13 service engine soon light, brown/white
14 shift indicator, tan/black

connector C1 14 13 12 11 10 9 8
1 2 3 4 5 6 7

connector C2 7 6 5 4 3 2 1
8 9 10 11 12 13 14

Oh, and thanks for helping set up the header G/P from Hawk's!!! Later, Dean

Hey.....enjoy ur purchase and thanks a lot for the info. I cant wait to get home and try it.

The only clarification is my 91 gauge has a low oil idiot light. from tracing the ckt using a dmm it seems to be C1 - 11.

Can u confirm.

Thanks again

No I am replacing my 1982 80 MPH cable driven speedo with a 1991 Firebird 140 MPH electronic speedo.
The early carbed ones are different, the camaro are different from the firbirds, also the 91-92 are also different because of the air bags.

So I guessing the 1992 pinouts DeanJ gave me will work.

Too late I guess

Anyways, the 92 oil circuit has no provision for a low oil idiot light. The 92 pinout cannot help you there

The pinouts I gave you are from a 1991 firebird factory service manual. It does not mention an oil light, only gage. Hope the earlier info helped, Dean.

Cool even better.

i guess I will just leave the low oil idiot light unhooked.

On my 82 gauge connector there is a BRN wire comming from the alternator. I am guessing thats for the voltmeter.

On the 1991 connector pinouts Dean posted looks like there is no provision.

Wondering how the 1991-92 gauge measures Voltmeter ?

Do I just leave that BRN wire unhooked ? or do I have to repin it somewhere

http://www.austinthirdgen.org/mkport...8_charging.jpg

You cannot leave the BRN alt wire unhooked

http://www.austinthirdgen.org/mkport...uges_part2.gif

The voltmeter reads voltage across the cars wiring, not alt output
The firebird circuit is similar to the camaros except it uses C1-c9 for power in and C1-c12 for GRD

I got your PM a little too late, I was at my shop taking pics of the swap headers. Pocket has allready supplied you with the correct info, Dean.

I figured I'd first try tacking this question on to another post before littering the board with more threads. I'm running a truck pcm (red/blue) and a CS alternator like what came stock on our cars. Looking at the wiring to both my '91 and a comparable '02 truck, I think I figured it out except for one wire. On the harness for the '02 there is a brown (brn) wire for the 'Charge Indicator Control'. Can this be ditched since the 3rdgens voltmeter runs off other wiring in the cluster?

And to clarify the other wiring, I think I can run the gray (gry) wire from the truck haness to the brn wire off the alternator (the field/exciter wire), correct? And the red wire just run to my fuse block on the battery power stud?

I am using the LS1 alternator and not the stock 3rd gen alternator like shown in ur wiring diagram.
So where should I plug/splice the BRN wire in the stock 3rd gen engine harness ??

Also the BRN wire comming into the 82 gauge connector ...... what do I do with that ?

I did not know you were not reusing the 3rd gen alt for simplicity

The BRN wire in the 3rd gen wiring splices into the fan IGN power and comes from the fuse box

I have no idea why the ALT is wired that way (on the fan fuse of all things)

Why not skip it and rewire it correctly

http://www.ls1tech.com/forums/conver...-question.html
http://www.ls1tech.com/forums/conver...-question.html
http://www.ls1tech.com/forums/conver...-question.html

That should cover, 98 specific, all Fbody, truck, corvette and GTO alt wiring

anyone have the pinouts for the 82 gauge cluster????