Need firing order for bmw z3 four cylinder. do not know which way two of the wires go; they are both the same length and do not seem to fit well either way I put them. What is the correct firing order?

All questions in this category need full 'year make model'.

You can Google

year make model firing order

and look at the images tab. There will be dozens, like this;

https://www.google.com/search?q=2005+honda+pilot+firing+order

...

If it got too hot the engine may have been damaged. You will need to have a cylinder compression test to make sure the engine is ok. Did the coolant get all over the engine? Some electrical connections may have gotten wet. Make sure it is getting fuel. Spray a little starter fluid into the throttle body.

Which engine do you have in the vehicle? They fitted them with an in-line four cylinder and a V6. The firing orders are different for each version. I'm assuming the distributor has NOT been removed and is set correctly!
**Note, Take your time to make sure you get this right!**
The Four cylinder is the standard 1,3,4,2, firing order with number One being the nearest cylinder, (spark plug), to the belts and pulleys on the engine. Use the plug leads as a guide as they should be four different lengths. The longest plug lead to the spark plug furthest away, shortest to the nearest spark plug.
With the distributor cap removed make sure the engine is at Top Dead Centre for cylinder One. Check where the metal tip on the rotor arm is pointing as this is where the plug lead for Number One should go.
Refit the the distributor cap and insert the lead for the Number One spark plug into the hole nearest where the rotor arm tip was pointing. Now refit the remaining 3 plug leads in the Correct Order, (1,3,4,2,) into the remaining 3 outside holes in a CLOCKWISE direction. The centre hole should connect to the coil pack lead.
A V6 engine uses the same setup BUT a different firing order. (See photo). 1,4,2,5,3,6. In the photo numbers 1 and 4 are nearest the belts and pulleys.
Set your distributor as you would for the four cylinder engine, fit plug lead one and going CLOCKWISE fit them as the 1,4,2,5,3,6 sequence.

The firing order is 1-2-3-4-5-6
Cyl #1 is front left when looking at engine front to back
left coil pack connects to cyls. 5-2
center coil pack connects to cyls. 3-6
right coil pack connects to cyls. 4-1
It doesn't matter which connector on the coil you use just that the cylinder is connected to the proper coil pack (the coil fires both plugs at the same time, twice per each full 4 stroke cycle)
1998 Chevrolet Lumina
3.1 liter V-6 VIN "M"

I'm going to guess you meant a 1993 BMW 318i just because...

The four cylinder order is 1-3-4-2. Sixes are 1-5-3-6-2-4.

Firing order is stamped on the block intake manifold or label. 4 cyl are typically 1324

From the web:
The firing order for four cylinder engines where the cylinders are in-line is 1243 or 1342.
Those are the only two possibilities I've ever found for inline four cylinder engines. In practice, it's almost always 1342, except for Ford engines which are 1243.


Take one off at a time and replace it

Do not run the wires parallel (side-by-side) for more than 6". Cross them over each other wavy-like if needed. This will prevent crossfire.

Replace Points, Plugs, Condenser, Rotor and Cap too.

Good luck!

I have the same problem with my Z3 alarm going off, a local BMW specialist has traced it to the pitch sensor which has been damaged due to a water leak, the wires are also corroded. They have quoted £200 to fix it, but advise that the water leak is sealed first because it'll just get damaged again. I've had a look round and it appears the water is getting in by the off side light cluster via the boot gutter.

The firing order is 1-3-4-2 and that is how it should be wired.. only then can the engine work correctly.
The front of car is no 1 cylnderand nearst to dashboard is no 4 cylinderand 2 and 3 in the middle.

it seem like you are having problems with the ignition switch,replace it and it should be fine.goodluck"!!!

Hi,
Isuzu seem to have complicated things by changing engines, firing orders and even direction of rotation! As you can see, they've numbered the cylinders the other way than the 3.2L.

The Firing sequence for the 3.1 (traditional distributor) 6 cylinder is as follows -



If you take the distributor cap off, there should be a "No.1" formed on the inside. Stick a lead on this before you put the cap back on and go from there.
As leads are different lengths, you may have to swap a few to find the best fit.

I think 2 of them will look out of place - but that's the way it's designed. Just make use of clips for holding them neatly.

Thanks for using Fixya.