2004 Isuzu Rodeo 3.5ltr 4X4 hesitation/misfire acceleration

fix misfire [s]

USA car? must I GUESS?
so you have 2 coil packs. ????
called wasted park
seems you typed the displacement wrong, !!! 2.2L is 4 banger...
1 and 4 fire as a pair
2 and 3 , fire as a pair , in series

so if the spark wires open , you loose a pair,
say #1 opens, you loose #4 with it.
they are wired in series.
if one spark wire grounds out , you lose only THAT spark plug.
but why would you get the odd pack to pack cross talk.
(assumes you have the HV wired right. correct?)
the packs cant be wired up willly-nillly.
this is the 2.2L coil pack.
and IS wasted SPARK system. for sure.
and can not be mixed up
the PCM is hard coded for 1,3,4,2 firing order.
and must be wired right. did you meddle here?
if you unplug the 2 one right , this must not make the 2 on left work.
pulling 1 wire, only kills the adjacent wire. normal.
see the pairs there, at the bottom see those hiddencoil packs mail coils molded to case?
if you are wired right and you have cross talk from 1/4 to 2/3 bank
the pack is bad.

by cross talk i mean, 1;3 effect 1/4 or the reverse.

Is #2 injector firing?
Do It Yourself Diagnosis and Repair

A misfire alarm typically means the coil pack mounted above the sparkplug indicated in the misfire had gone defective.

To test it, swap the coil pack with another cylinder, and see if the misfire goes from #2 to the cylinder you put it on.

If the misfire continues to be on #2, then consider changing the sparkplugs.

I hope this helps.

LET ME GET BACK TO YOU.

Check fuel injector and compression in cyl. #5.

1998 isuzu rodeo wont start no spark,no injector pulse

You should definitely replace the fuel filter though this probably won't fix your hesitation. It wouldn't hurt to replace the spark plugs this is usually the culprit on these engine. I have the same engine in a '99 caravan and found the for some reason the spark plugs on cylinder 3 and 4 loosen up after one year and cause a misfire between 45 and 50 mph under load (when mildly accelerating).

cylinder 4 is on the drivers side it is middle plug goes 2,4,6. it is possible for plug to go bad at mileage. look on the side of plug see if you can see a black mark on side this will be evidence of fire going down side of porcelain also look on plug wire for any trace of arcing. it is most likely a bad plug or wire on cyl 4

Hi,

On the 3.2L distriburorless ignition, the firing order is a straight 1-2-3-4-5-6.

Cylinder numbering .

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Hope this works for you