Firing order 89 pontiac bonneville. I think I need a wiring diagram for the spark plugs.

Pontiac Trans Sport firing order diagram spark plug wires ...

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Pontiac Trans Sport cars & trucks firing order diagram spark plug wires questions and answers. ... 1994 pontiac transport se not firing in first coil pack at idle. images for 1994 Pontiac transport timing sequence

It doesn't seem to me it is a routing problem. I think you have a spark plug wire leak instead.Replace wires.

1997 Pontiac firing order is 165432

Just thought I'd let you know, All you needed to say is "firing order diagram for a 1998 Pontiac Bonneville 3.8L engine". Here it is:

Firing order is 1-6-5-4-3-2..Cylinders are 1-3-5- in the FRONT from Passenger side to drivers side and 2-4-6 are in the back Passenger side to drivers side. Coils are 1-4-5-2-3-6 front to back.

go to google type in 1997 Bonneville spark plug firing order and there will be a list of choices to choose from

For the 1995 Pontiac Bonneville 3.8L:
To answer your question directly: The Firing Order DOES NOT follow sequentially on the coils! See Below
Firing Order:
1-6-5-4-3-2
Cylinders:
.......(back).......
|...2....4....6...|
________________
|...1....3....5...|
.......(front)

For the Coils:
(back)
....6
....3
....2
....5
....4
....1
(front)

For this Type Coil (Solid One UNIT):
(back)
_____
|....o| <---6
|O....|
|....o| <---3
|....o| <---2
|O....|
|....o| <---5
|....o| <---4
|O....|
|....o| <---1
(front)

For this Type Coil (3-Section UNITS):
(back)
______
|....o.| <---6
|O.....|
|....o.| <---3
_____
|....o.| <---2
|O.....|
|....o.| <---5
_____
|....o.| <---4
|O.....|
|....o.| <---1
(front)

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

My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.
For the 3.8L:

Firing Order:
1-6-5-4-3-2

Cylinders:
(back of engine)
2-------4-------6
1-------3-------5
(front of engine)

Ignition Connections:
(back)
__
o-<--6
o-<--3
__
o-<--2
o-<--5
__
o-<--4
o-<--1
(front)

Let me know if this helped.....

It is stamped on the top of the engine, in the head. It is usually pretty easy to find, and you wont have to remove any pieces to see it.

Hi,
I don't know your engine size, but the link below is a picture of the GM small block firing order with distributor.
The firing order, which should be cast into the intake manifold, for the chevy small block V8 is 1-8-4-3-6-5-7-2. The firing order is the numerical sequence in which the spark plugs are fired. The insertion position of each spark plug wire around the circumference of the distributor cap can be found according to a clock face. The insertion sequence determines the firing order. The firing order is followed clockwise around the distributor cap starting from the 6:30 position with the 6:30 position being the number one cylinder spark plug wire.

http://www.classiccarauto.com/impala/how_to/images/distributor.png

Hope this helps...