Hi All! I have a beautiful 2005 3.0 that kicks up P0300 0302 0304 0306 1314 1316 0352 0354 0356 after around 20 minutes of driving. It runs *perfectly* (idle, high rev) before the misfiring and then goes into limp mode. If I let it sit for a while, I can get back into it and run it for 20 more minutes. I've been going through the shop manual and am a bit confused on what to look for when it is an entire bank of coils reporting faults only after heating up. Should I be looking at the ECM or wiring? Would a bad spark (plug or coil) in one cylinder affect other cylinders in that bank?

This has been my main driver for the past 5 years and has treated me well. This girl is getting passed off to my daughter who just turned 17 over Christmas and hopefully it won't be in the shop when she 'opens it'.

P0352 P0354 P0356
Ignition coils 1B, 2B or 3B primary circuit malfunctions.
Ignition coil open/short circuit.
Ignition coil insulation breakdown.
Damaged harness.
Connector pins bent or corroded.
Ignition circuit ground fault.
Damaged ECM.

GO to Pinpoint Test

 

bump

 

ANyone having this issue, start with an inspection of the wiring harness. This is especially true if you have let the car sit for a period of time (say a month) or you live in a rural area. Mice seem to love eating the insulation off of the wiring.

After this inspection, if you look above the passenger front tire (US driver's, those with RHD cars, it would be the driver's side), you will see where a bunch of wires come together on the body at a grounding point. Clean up those connections and then put the wires back down in the same order that you found them (there is a reason why they are stacked like they are). See if your problem goes away.

Lets start here and hten we can take things further if needed.

 

Before I took the tire off i decide the check all the I checked the day before. I always top off fluids, check weak hoses an wiggle an shake everything to make sure nothing loose or ready to fly off. Did the day before an caused it so figured I had to have done something. Ended up being my coil pack 1 had became pulled jus a half of inch an was making the coil pack act as a misfire to the whole front side of the engine. Pushed in back in an runs as good as before, wouldn't say new lol.
she's a project car with many previous owners so there's allot of wrong things with her.