Question about 1994 Pontiac Firebird

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If i change my motor from v6 too v8 do i need to change the wiring harness 0n a 1994 pontiac firebird

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  • Pontiac Master
  • 2,002 Answers

You'll need to change the computer and therefore at least some of the wiring.

Posted on Jun 27, 2009

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How to replace instrument panel harness connector on 1999 pontiac firebird v6


You must replace the whole dash harness, the connector is not avail separately. You will need locate the harness in a wreaking yard, a new part will not be available.

Oct 08, 2012 | 1999 Pontiac Firebird

1 Answer

Got an '87 firebird that has been pieced together, looks like 5.7L T.P.I. engine. How can I identify what motor it is for sure? thanks


Look at the fuel injector cover if its fuel injected on top most say it there, it will say 2.8L or 5.7L if it is a v6 (6 spark plug wires) chances are its a 2.8 if it has V8 (8 spark plug wires) more likely to be a 5.7. Check your ECM if its what came with that motor if it is the original GM part the number on it should be 1227165 if it is it should be 5.0 or 5.7 more likely the 5.7.

Dec 13, 2010 | 1987 Pontiac Firebird

1 Answer

Firebird firing order diagram


For the 1992 Pontiac Firebird:
I do not know if you have the 3.1LV6, 5.0L V8, or 5.7L V8; however I have included all of them below:

For the 3.1L V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
.....(back).....
|..5..|...|..6..|
|..3..|...|..4..|
|..1..|...|..2..|
....(front)
Distributor:
....(back)
......(+)-screw
...3......4
2............5
...1......6
......(+)-screw
....(front)

For the 5.0L V8 and the 5.7L V8:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
......(back)........
|..8..|.......|..7..|
|..6..|.......|..5..|
|..4..|.......|..3..|
|..2..|.......|..1..|
.......(front)
Distributor:
....(back)
(+).6...5
3............7
4............2
.....8...1.(+)-screw

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

May 10, 2010 | 1992 Pontiac Firebird

1 Answer

I need to find firing order on coil packs for a 94 pontiac firebird sequence numbers


Hello! You didn't specify which engine that you had, so I will supply you with both V6 (3.4) and V8 (5.7).

V6: 1-2-3-4-5-6
driver's side: 2-4-6 (2 is at the front)
passenger side: 1-3-5 (1 is at the front)
V8: 1-8-4-3-6-5-7-2
driver's side: 1-3-5-7 (1 is at the front)
passenger side: 2-4-6-8 (2 is at the front)

Hope this helps, and thanks for using FixYa!

-KCGTODAD

Feb 02, 2010 | 1994 Pontiac Firebird

1 Answer

I brought my 1998 v6 pontiac firebird to a shop they changed my computer out and engine light still comes on they said i need a new harness ow much does one cost and where can i get one


...... befor you spend a nother $500 on a harness try having them check the sencers comon one being the O2 sencer they like to go out a lot lol and junk yards are not evil i personly have walked out of one with $3000 worth of electrical for $80 for my 1994 firebird and it all works im not say don't do it just be advised that what your talking about is probley not the problem and can be fixed cheeply in other ways then replacing every thing electrical

Oct 07, 2009 | 1998 Pontiac Firebird

2 Answers

Alternator belt diagram for 1996 firebird


You did`nt tell the engine so here is v6 and v8 diagram.
V6
42161897 V8
62419046

Sep 18, 2009 | 1996 Pontiac Firebird

1 Answer

What transmission the five speed in my 3.1 v6 firebird


yes u can put a V8 in, just need the correct wiring harness and emission parts, u can use any of the medium to heavy duty 5 speeds made by Borg Warner, model T5 chevy bolt pattern, which by the way is most likely what is already in your car.

Nov 09, 2008 | 1992 Pontiac Firebird

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