Just my luck... :(
10-04-2011, 04:17 PM
#1
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Join Date: Dec 2007
Location: USA
Posts: 286
Just my luck... :(
After I just got done doing the 120k miles maintenance on my car which include: Seafoam, Oil & filter, transmission fluid, air filter, spark plugs, PCV valve, fuel filter, Alternator belt, & Power steering belt. It drove like a brand new car for over 200 miles but now...The car gave me these 2 codes:
P1320 - Cylinder 2 misfire detected
P0302 - Ignition signal
The car sounds and looks like it runs on 5 cylinders so I assume the coil pack is bad
The problem is pretty much non existent when I'm on the highway.
Should I just go ahead and replace all 6 coil packs since they're going to slowly go out one by one?
P1320 - Cylinder 2 misfire detected
P0302 - Ignition signal
The car sounds and looks like it runs on 5 cylinders so I assume the coil pack is bad
The problem is pretty much non existent when I'm on the highway.
Should I just go ahead and replace all 6 coil packs since they're going to slowly go out one by one?
10-04-2011, 04:40 PM
#5
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Join Date: Jan 2010
Location: Denver, CO
Posts: 1,396
your car shouldn't be misfiring at high speed, that's why it goes away on the highway. Im in the same boat, cylinder 2 is misfiring in my car. I changed the coil pack but to no avail, the mechanic thinks its somewhere else down the electrical line that leads to that coil pack. Hoping to solve the issue soon, but first things first, goto autozone and get a coilpack for 70 bucks and change it. You need a allen key and a phillips head, it takes 5 minutes. See if that helps.
10-04-2011, 07:06 PM
#6
your car shouldn't be misfiring at high speed, that's why it goes away on the highway. Im in the same boat, cylinder 2 is misfiring in my car. I changed the coil pack but to no avail, the mechanic thinks its somewhere else down the electrical line that leads to that coil pack. Hoping to solve the issue soon, but first things first, goto autozone and get a coilpack for 70 bucks and change it. You need a allen key and a phillips head, it takes 5 minutes. See if that helps.
10-04-2011, 08:22 PM
#8
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Can I test to see if the coil pack is bad by pulling the plug on the coil pack itself? IF it is indeed the bad coil pack (engine running on 5 cylinders), when i pull the plug, the engine should continue to run the same as before i pull the plug...
10-04-2011, 09:48 PM
#9
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Join Date: Sep 2009
Location: Ontario, Canada
Posts: 108
You can also swap the coils around, if the code follows the coil than you know its faulty.
Last edited by ES_Kev; 10-04-2011 at 09:56 PM.
10-05-2011, 02:30 AM
#11
10-05-2011, 08:10 AM
#13
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Join Date: Dec 2007
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It could possibly by the seafoam breaking something loose along the line and now got the injector stuck.
Yesterday when the car was running on 5 cylinders, I hammered down on the gas pedal and took the car to almost redline. Almost instantly the car runs perfect on 6 cylinders. It's almost as if whatever that was stuck on the injectors got freed when I slam on the gas pedal.
The car is running perfect right now...but I hope the problem doesn't come back.
10-06-2011, 10:26 PM
#16
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Join Date: Oct 2009
Posts: 1,432
our injector love to be taken care of so a bottle of chevron techron injector cleaner is a must at least twice a year.
i put a bottle of chevron cleaner and lucas injector cleaner together on a full tank of gas every 3 months and no miss fires on my 99.
another thing on the miss fires if theirs a miss fire and its not the injector nor the coil in that cyl don't automatically think its a electrical short cause i did on two cyls not firing and ripped my entire hardness down for nothing.
its very rare but our ecus have like resistors for our coil pack signals and mine had 2 burnt out. replaced ecu and bam not a single problem.
i put a bottle of chevron cleaner and lucas injector cleaner together on a full tank of gas every 3 months and no miss fires on my 99.
another thing on the miss fires if theirs a miss fire and its not the injector nor the coil in that cyl don't automatically think its a electrical short cause i did on two cyls not firing and ripped my entire hardness down for nothing.
its very rare but our ecus have like resistors for our coil pack signals and mine had 2 burnt out. replaced ecu and bam not a single problem.
10-07-2011, 01:31 AM
#17
Personally, I think fuel injector cleaners are a big rip off. Gasoline is a pretty damn strong solvent by itself. Do you really think pouring some other kind of solvent in the gas tank is going to help? When injectors get old they need to be replaced or maybe sent in to a place like RC Engineering. Injectors don't only get clogged, they leak too. Sometimes things are just defective.
OP, if it happens again try switching your coil packs around to see if it affects the cylinder that is misfiring. Eliminating the properly functioning components from the equation is a lot cheaper than just replacing things on a whim.
OP, if it happens again try switching your coil packs around to see if it affects the cylinder that is misfiring. Eliminating the properly functioning components from the equation is a lot cheaper than just replacing things on a whim.
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