Misfiring cylinder 3 and ignition valve

Part 3 -How to Test the Ignition Module and Crank Sensor ...

easyautodiagnostics.com > Ford > 2.3L

Mar 1, 2012 - Spark plugs for cylinders #2 and #3 get spark at the exact same time. ...voltage -12 Volts) to both individual ignition coils within the coil pack. ... Ford Mustang or Ranger (or 2.3L Mazda B2300), this is what you'll need ... for this 'Switching Signal' at the coil pack... but you can also test this ... 1991, 1992, 1993.

How to Diagnose a Misfiring Cylinder (2.3L Ford Ranger ...

troubleshootmyvehicle.com > Ford > 2.3L

Apr 3, 2012 - Bad Fuel Injectors can cause a Misfire Condition. ... the ignition system on the 2.3L Ford Mustang or Ranger consists of 2 ignition coil packs, ...

2002 ranger misfire rough idle - Discussion on Topix

www.topix.com > Ford Ranger

Jul 27, 2007 - My truck is giving the code misfire in number 4 cyl. I replaced my spark plugs, Wires, Coil packs (both of them) and all my fuil ... three (3.0L v6) go bad, the fuel/air mixture gets messed up. Judged: 2. 2 ... My truck runs rough only at idle. ...code for ford ranger 2002, 2.3 5speed. truck runs like a champ but that ...

Extremely stumped! I need the best and brightest 1994 Ford ...

answers.edmunds.com > Edmunds Answers

Misfiring can be cause by ignition coil,spark plugs,wires,engine valve,cylinder compression,
if it's a quad four then crack around the ignition coil. there is 2 coils like 1-4 coil and 2-3 coil
first check spark plug color or foul of gaz
hope it help

hi , if you are sure the no. 6 cylinder is misfire then change the ignition coil if you are sure but if you are going to buy a new coil better buy all 6 coils and it will last longer if not after no.6 then no.5 or 4,3, until you change all of it .....for rough runs pls flush / change ATF every 20,000 km and change engine oil every 5,000 km , change the exhaust (o2) sensor it make a lot of different , resetting your throttle sensor and speed sensor , all the above must change it with nissan oem part and it not that expensive too.

did you replace only one spark plug? that can cause issues because of differences in resistances between cylinders. also, did the map code stay off after replacing
?

Do you know if the plugs were changed, a bad or broken plug will also cause rough idle and slow acceleration?

BROKEN VALVE SPRING WOULD BE MY GUESS.

DIS ignition, no distributor to " get in there " with....

OBD II 300 Random/Multiple Cylinder Misfire Detected

When the misfire monitor detects a misfire, it will trigger the check engine light with the specific cylinder number as the last digit in the P030X code. For instance cylinder 1 misfire is P0301, cylinder 2 is P0302 etc. In this case we have either multiple cylinders misfiring, or the computer simply can't determine the specific cylinder, and as such we are left with the P0300 in computer memory.

Possible Causes:

Fuel injectors, related wiring, sensors and computer issues
Running out of gas, or poor fuel quality
Evaporative emissions system (EVAP) concerns: fuel vapors leaking into engine
Incorrect Fuel Pressure
EGR system concerns: leaking EGR valve or restricted ports
Base engine concerns: low compression, valve train problems and timing issues
Ignition system concerns including, but not limited to:
Faulty spark plugs
Faulty coil or related wiring
Ignition module or related wiring issues
Ignition related sensor faults or wiring issues

have an 02 misfiring on no7 cyl was catalytic converter

Is this a 5.7? They are notorious for intake manifold gasket leaks. When mine did it, the diagnostics blamed it on an ignition misfire also! Replaced the gaskets and it runs smooth!