Friggin misfire cyl 06

[04_Sport_LS]

The ETC failsafe only happens when in WOT.

Well that would have been good to know from the beginning.

Which version of Standard coils do you have installed. They have 2. The "T" series are the cheaper ones at $12... and the regular ones at $32. The T series aren't really any better than the eBay coils... And could be part of the issue.

Any other codes besides the misfire and failsafe? Kinda hard to believe those are the only ones.

How old is your battery? What is the voltage both key off... and engine running?

 

[AmsterDutch]

So this leads me to believe that it's not the coil. Could be the plug? Did I get a bad plug from NGK?

Is the plug gapped to the proper specification? .101?

 

[lincoln_zero]

Which version of Standard coils do you have installed

T series. Canadian they are $28 each

Any other codes besides the misfire and failsafe?

None. Just cyl 6 misfire and failsafe. When I first bought the car, I was getting 02 sensor bank 2 sensor 2, intermittently. Thought it was the coils, so i replaced them. I still have the coils that were on the LS when I got it, they're the Delphi brand.

How old is your battery? What is the voltage both key off... and engine running?

New. about 8 months old. Battery and voltage are good, last I checked it read over 14 volts engine on.

Is the plug gapped to the proper specification? .101?

My father in law did the gapping, he said he did it right. I was thinking that might be the issue, I will check it.

 

[04_Sport_LS]

Try putting the Delphi coils back in and see what happens.

Hopefully it's not too late for your PCM.

 

[04_Sport_LS]

last I checked it read over 14 volts engine on.

Please tell me it's not a cheap Wal Mart battery.

 

[lincoln_zero]

Please tell me it's not a cheap Wal Mart battery.

$200 Costco AGM Battery. I have an audio system upgrade lol

 

[lincoln_zero]

Try putting the Delphi coils back in and see what happens.

Hopefully it's not too late for your PCM.

Ok so when I got the car September last year, it threw a code for 02 sensor. Reading on LVC that bad coils trigger wrong codes, I went and replaced the coils thinking those were it. It was also badly misfiring, you could here it. The car came with Delphi coils. I do think the coils are shot. I replaced them with standard coils, and the sputter / misfire was almost null.

Fast forward to this year, I've had on and off sensor readouts. So in another post, joegr suggested replacing my 02 sensor. I finally did that, and now I'm just getting misfire cyl 6.

Now, I just realized today, after checking my screen shots from Sept - Dec last year, it was ACTUALLY sensor 01 throwing the readout.
Although I'm confident I saw sensor 02. So I replaced sensor 02, since that was HAS thrown a code.

Now I'm no longer getting sensor readouts, just cyl 6 misfire.

I hope that clears that up.

 

[AmsterDutch]

Ok so when I got the car September last year, it threw a code for 02 sensor. Reading on LVC that bad coils trigger wrong codes, I went and replaced the coils thinking those were it. It was also badly misfiring, you could here it. The car came with Delphi coils. I do think the coils are shot. I replaced them with standard coils, and the sputter / misfire was almost null.

Fast forward to this year, I've had on and off sensor readouts. So in another post, joegr suggested replacing my 02 sensor. I finally did that, and now I'm just getting misfire cyl 6.

Now, I just realized today, after checking my screen shots from Sept - Dec last year, it was ACTUALLY sensor 01 throwing the readout.
Although I'm confident I saw sensor 02. So I replaced sensor 02, since that was HAS thrown a code.

Now I'm no longer getting sensor readouts, just cyl 6 misfire.

I hope that clears that up.

Are you getting the same voltage reads from cylinder 6 as cylinder 7? Did you check the voltage yet and did you check the spark plug gap? Did you try zip tie around the connector if the clips are broke? If all these little trouble shooters are done and you're still getting a misfire on 6 the next steps are buying a MotorCraft Coil and new plug or checking the fuel injector...by the way did you ever seafoam the gas yet? Like 04' Sport said Seafoam is great at cleaning out the injectors also you can use the Seafoam spray and Hot soak the upper engine to release carbon build up...you can go through the throttle body vacuum hoses

 

[joegr]

Is the plug gapped to the proper specification? .101?

Trying to figure this one out....
V6 gap = 0.052" = 1.3mm
V8 gap = 0.039" = 1.0mm

A gap of 0.101" would be massive and sure to cause problems.

 

[lincoln_zero]

Trying to figure this one out....
V6 gap = 0.052" = 1.3mm
V8 gap = 0.039" = 1.0mm

A gap of 0.101" would be massive and sure to cause problems.

I was thinking this. My father in law is not a mechanic, but he does his own work. Im leaning on him gapping incorrectly. I'm calling my mechanic to try and get it regapped.

 

[lincoln_zero]

Are you getting the same voltage reads from cylinder 6 as cylinder 7? Did you check the voltage yet and did you check the spark plug gap? Did you try zip tie around the connector if the clips are broke? If all these little trouble shooters are done and you're still getting a misfire on 6 the next steps are buying a MotorCraft Coil and new plug or checking the fuel injector...by the way did you ever seafoam the gas yet? Like 04' Sport said Seafoam is great at cleaning out the injectors also you can use the Seafoam spray and Hot soak the upper engine to release carbon build up...you can go through the throttle body vacuum hoses

I haven't checked voltages yet. I work 10+ hours days and I don't have a garage, so on my day off this week I am going to check them for sure. I measure in mV right?

A friend helped me seafoam the engine last year. Big difference. There was carbon build up for sure. The seafoam released a ton of it. Now I no longer smell carbon when I WOT. Which, it did before.

 

[joegr]

I was thinking this. My father in law is not a mechanic, but he does his own work. Im leaning on him gapping incorrectly. I'm calling my mechanic to try and get it regapped.

It's very easy to damage the plugs if the gap checking and adjustment is not done with great care and the correct tool.

 

[04_Sport_LS]

Clear as mud.

So besides the codes you have mentioned... you have had other sensor readouts?

Fast forward to this year, I've had on and off sensor readouts

I measure in mV right?

No. Coils are nothing more than a step up transformer. Usually 12+ volts in.... and 50,000 or so volts out. You will be checking the primary side for 12-14 volts. There is also a trigger voltage of around 5 volts, that tells the coil to fire.

This is how the typical COP system works. Not sure if this is exactly how the LS works.

 

[joegr]

... There is also a trigger voltage of around 5 volts, that tells the coil to fire.

This is how the typical COP system works. Not sure if this is exactly how the LS works.

Not on the LS (or many/most Fords). Battery power is continuously applied to the positive terminal of the coil when the key is in run or start. The PCM switches the negative primary terminal to ground to "charge" the coil, and then opens the ground circuit to fire the coil. The secondary current return path is through the positive terminal through the battery, and then back to ground.

This is the only way to really test the coils: https://www.google.com/url?sa=t&rct...05-22-08.pdf&usg=AOvVaw3nwyiXhDvlUjcUMU_LyHGv

Resistance and low voltage measurements are all but useless here.

 

[AmsterDutch]

Trying to figure this one out....
V6 gap = 0.052" = 1.3mm
V8 gap = 0.039" = 1.0mm

A gap of 0.101" would be massive and sure to cause problems.

yes typo meant 1.01mm

 

[lincoln_zero]

Clear as mud.

So besides the codes you have mentioned... you have had other sensor readouts?

Only sensor readouts I got was 02 Bank 1 (Sept - Dec), And 02 Bank 2. I think it once threw bank 1 of the 02 sensors, but that was too long ago to remember, it was before I changed out the Delphi coils.

For now, all I am getting is Cyl 6 misfire, and ETC Failsafe.
These are the codes that show: P0306, P0316 (generic code for startup misfire), P2106.

 

[lincoln_zero]

OK Update:

So I took my car to see my mechanic. We pulled out the ignition coil to cyl 6. We inspected the harness tip, looks fine.
My mechanic pulled out the spark plug and inspected the gapping. Its gapped at 0.039. HOWEVER......

He said the plug looked cracked, or burned. So I ran the plug a few units down to the parts store and showed the parts guy. He examined the plug and said "It looks like the plug has been arcing". I asked him if ignition coils failure can do this? He said no, that the plug itself was a factory defect.

Now, when I did the plugs with my father in law a few weeks ago, upon finishing the job and starting the car, it went into failsafe mode within 2 minutes. So is it possible I got a bad plug from NGK?

Moving on, the parts guy said its a "V cut platinum" and that its the wrong plug. I told him, I bought it from Canadian Tire and I made sure I double, and triple checked the package serial to match whats in their system. He says Canadian Tire gets it wrong a lot, and they are all the wrong plugs. He said: "The LS uses laser cut plugs". He then sold me an Iridium plug for $12 + tax, and I ran back to my mechanic and we installed the Iridium plug, put everything back together.

Started the car, and it warmed fine. I revved it, and it kind of sounded like I heard 1 or 2 pops. I took it out on the road, and I dropped the hammer. No codes.
I floored it to the next stop of the day. Nothing.
I drove it all the way to the next town and went to Walmart, flooring it periodically in between, nothing. I drove over an hour between stops and home, and punching it in between. No codes, no failsafe.
That was todays driving, its only been 1 day since it's behaving itself after the plug was changed.

Any thoughts on this?

 

[lincoln_zero]

It just came back this morning after I accelerated hard making a right turn. ETC failsafe


Edit: Restart the motor. Drove 45 minute to work, didn't do it again.

 

[AmsterDutch]

It just came back this morning after I accelerated hard making a right turn. ETC failsafe


Edit: Restart the motor. Drove 45 minute to work, didn't do it again.
View attachment 828572802

I run NGK G-Force plugs ...never had any problems with them ....but this sounds more complex than spark plug issue...When the car went into FAIL SAFE this last time are you getting any codes with it? Wondering if you ever cleaned your MAF? Are you running the original EGR Valve? Kinda weird that you were running the wrong plugs but only had one cylinder misfire...

 

[lincoln_zero]

I run NGK G-Force plugs ...never had any problems with them ....but this sounds more complex than spark plug issue...When the car went into FAIL SAFE this last time are you getting any codes with it? Wondering if you ever cleaned your MAF? Are you running the original EGR Valve? Kinda weird that you were running the wrong plugs but only had one cylinder misfire...

MAF I haven't touched. The intake filter is clean tho.
I can't say for the EGR valve, I bought it used at 105k. There was work done to the throttle body from previous owner

No misfire codes. But I did audibly hear sputter when I neutral revved it this morning (slowly revved).

 

[AmsterDutch]

nd they are all the wrong plugs.

He then sold me an Iridium plug for $12 + tax, and I ran back to my mechanic and we installed the Iridium plug, put everything back together.

Just making sure you meant to say plug(S) Plural not (plug) singular? you di replace all the wrong plug(s) not just the cylinder 6 plug right?

 

[lincoln_zero]

Just making sure you meant to say plug(S) Plural not (plug) singular? you di replace all the wrong plug(s) not just the cylinder 6 plug right?

Just cyl 6, just to see if that was the issue. Seems to have cleared it up quite a bit. I'm gonna do the rest this week. Why, is it dangerous to drive to work for the next couple days? I do plan on doing them asap

I'm having a hard time believing that NGK G-power plugs are the culprit. I ran these in my old LS no issue. But yet, here we are.

Now if I go replace these plugs with brand new plugs, should I do a new set of coils with them?

 

[AmsterDutch]

Just cyl 6, just to see if that was the issue. Seems to have cleared it up quite a bit. I'm gonna do the rest this week. Why, is it dangerous to drive to work for the next couple days? I do plan on doing them asap

I'm having a hard time believing that NGK G-power plugs are the culprit. I ran these in my old LS no issue. But yet, here we are.

Now if I go replace these plugs with brand new plugs, should I do a new set of coils with them?

So correct me if I'm wrong....but you're saying that these Spark Plugs are the wrong Spark Plugs for the Lincoln LS????

NGK 7090 BKR5EGP G-Power Spark Plug, Pack of 4
Sold by: Amazon.com Services, Inc
Return window closed on Jul 24, 2019
$12.24
If you were told that these plugs don't work in the Lincoln LS ...I have proven that theory FALSE ...I have ran these plugs for over 5 years in both 1st Gens and a 2nd Gen 2006' without any issue whatsoever...I've had misfires and after replacing the malfunctioning spark plugs with NGK G-power plugs the car never ran better and smooth as silk...sorry this info you received is very hard to believe due to experience with these NGK G-power spark plugs running at professional grade in my LSes

 

[AmsterDutch]

Just cyl 6, just to see if that was the issue. Seems to have cleared it up quite a bit. I'm gonna do the rest this week. Why, is it dangerous to drive to work for the next couple days? I do plan on doing them asap

I'm having a hard time believing that NGK G-power plugs are the culprit. I ran these in my old LS no issue. But yet, here we are.

Now if I go replace these plugs with brand new plugs, should I do a new set of coils with them?

Showing 1-1 of 1 reviews(containing "Lincoln LS"). Clear filter

||
5.0 out of 5 starsExcellent results, cheapest tune-up I ever did.
April 8, 2015
Number of Items: 4Verified Purchase
Brought my lincoln LS back from the dead, now she purrs like a kitten and runs like a dream.
I found a review on Amazon that another guy posted ...sounds about right

 

[lincoln_zero]

So correct me if I'm wrong....but you're saying that these Spark Plugs are the wrong Spark Plugs for the Lincoln LS????
View attachment 828572806

Apparently.
Thats what the shop retail guy said when he punched my car into his system. Heres the Canadian Tire link.
NGK G-Power Platinum Spark Plug, 2-pk | Canadian Tire

I'm gonna go get my spark plug and look at the product ID on it.