Firing order Your info was helpful changed wirs and plugs misfiring/ must have wire on wrong plug #1 is behind alternator What's behind #1 and so on

Question edited for clarity.
Question moved to model category.

You have managed to mix up the firing order. Wrong plug wires to wrong cylinders

https://www.google.com/search?q=2002+subaru+outback+h6+3.0+firing+order+diagram

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FORD ESCORT.THE TWIN CAM, DOHC.ENGINE.
do not mix up coil pack 4HV wires or wrecks firing order
THE PCM + PACK SETS FIRING ORDER.
WIRED WRONG THERE IS NO RUNNING, ENGINE.
I WILL POST A BETTER PACK FROM NGK
do not change HV wires unless 1 at a time.
if one HV wire fails 2 plugs go dead.
this tech is called wasted spark.
the misfire is real and plug 1 and 3 are dead
flashing CEL means CAT melts next with flood of raw fuel landing on the CAT input.
first learn the 3 rules of spark engines
good engine, 150psi or more, and cam belt not SLIPPED.
next is spark if spark is good fuel is last
cant burn fuel on dead engine or dead spark or timed backwards.
301means weak combustion#1ONLY THAT>
why is next. and that takes tools GOT TOOLS?
99% do not here and want 50 guesses.
if used a timing light (spark tool) and timing is wayoff
the belt was put in wrong
or coil pack wired wrong.,OMG not both, sigh./

ZX2 ACTUAL

1998-2003 2.0 L (1989 cc) Zetec, DOHC I4, 130 hp (97 kW) at 5,750 rpm, 127 ft?lbf (172 N?m) at 4,250 rpm, redline 6,500 rpm, 7,200 rpm rev limiter ZX2
1342 FIRING ORDER, AND 1 AND 4 FIRE AT ONCE.
AS DOES 3 AND 2
INSIDE ONLY 2 COILS
MY 1975 HONDA CB750 HAD SAME THING. BACK THEN,.

CLEAR AS DAY HERE, IF DONE WRONG.

You probably connected the wrong spark plug wire to the wrong spark plug. You'll have to find the firing order and check your wires. I can't help you with that because you didn't indicate what kind of truck and engine you have.

did it misfire before the tune up? if not more than likely the firing order is wrong the wires we're put back onto the plugs incorrectly check the order other things that can cause this are fuel or even a vac. leak

Depending on your Grand Marquis's mileage...it sounds like plug wires and plugs...(worn out) and or engine timing/firing order? If plug wires recently changed...the spark plug wires are in the wrong firing order...confirm the firing order from your local parts store by phone...and retrace each one...always start with #1 cylinder...hope this helps.

If your car is miss firing and your husband changed the coil packs,the wires leading from coil packs to sparkplugs must have got crossed.This will change car timing which will result in the car miss firing.He needs to go over wiring and correct problem for car to run right.You can go online to autozone.com and type in Info about car to get the correct wiring layout.Your problem isnt the new plugs n wires.Its the wiring layout.

if the problem didn,t exist before you done this then you have the firing order off or have damaged one or more of the plugs

Misfire could be caused from bad plugs, plug wires, coils, injectors or fuel pressure. How many miles on the plugs and wires? Were the plugs gapped correctly? Time for a tune-up? You can get the parts you need as well as firing order and diagragm to show which cylinder is 1, 2, 3, 4,5 and 6 at Auto Zone.

2005 CARAVAN 3.3L.
Van misfires, code says coil three . change out with new a cam sensor , injector, wires , plugs and of coarse coil. What is left and why would the pcm just have a problem with # 3.
ps i checked the compression and all six cylinders have 165. lbs.

Ok this may be something smal that may be simple to fixs; your plugs are in the wrong cylinder?

Check Your gap size .060 (In thousandths of an inch)

Im not sure of the size of engine please look below for your make?



Fig. 3.8L VIN 1 Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system



Fig. 3.8L VIN K Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system



Fig. 3.8L (VIN 1 and L) Engines Firing order: 1-6-5-4-3-2 Distributorless ignition system

Fig. 3.8L (VIN K) Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system
I hope that this help!