2005 ls wont start

[305nole]

after i replaced the spark plugs and a faulty ignition coil car wont start. car fires up but wont stay on. any help please.

[shorod]

Welcome to the forum!

Did the car start and run fine before you changed the plugs and coil? When you say it will fire up, do you mean it will start but stalls quickly? What if you give it some throttle, will it stay running? Is it the V6 or the V8? Have you carefully reviewed everything you had apart to change the coil and plugs to make sure you got all hoses connected and connected to the correct ports? Did you make sure you connected the intake air tubing securely and have the MAF sensor plugged in?

-Rod

[305nole]

hi i'm sorry i didn't introduce myself to the forum... hi everybody. i have a 2005 v6. it was running pretty fine it will just misfire sometimes at a stop light and sometimes while accelerating. then the check engine light came on, then i checked it with my code reader and it gave the codes P0353pd, P0353, and P0305pd. I removed the intake manifold I unhooked the following ( I'm not too sure about the names): two electrical plugs in the front, two electrical plugs at the back, two hoses next to each other on the drivers side of the intake manifold, and a small orange hose form the back, also a hose broke thats connected to a hose coming from the radiator. I left two hoses on top of manifold alone. Then I replaced the ignition coil #3 and replaced all spark plugs. Replaced intake manifold gaskets, then followed sequence and torque specs for the bolts. Reconnected all of the parts I disconnected. Tried to start, the engine starts but never stays on. When I press gas after starting it tries to stay on but eventually dies, it would rev up then go down then back up then down then repeats this several times then dies. " intake air tubing securely and have the MAF sensor plugged in?" not sure what these are I'm really a novice.

[305nole]

now i think of it i did tighten and secured the intake air tubing

[joegr]

It does sound a lot like a MAF or an air leak problem. Unplug the MAF and see if the engine will start and stay running. If it does, then you have an air leak somewhere after the MAF, or the MAF was damaged somehow.

[305nole]

hi joe, ok i disconnect the MAF and it starts and stays on but it revs up and down, then these codes came up: P2106, P0113pd, P0122pd, P0222pd, P0223pd P061Fpd, P2106pd, P2110pd. thanks for any help.

[shorod]

You mention you had a P0305 diagnostic code but you replaced coil #3. Any reason you didn't replace coil #5 which the code indicated? The P0353 doesn't necessarily mean the coil is bad, that code could also be a wiring issue or problem with the coil driver circuit. Likewise, a P0305 doesn't necessarily mean a coil problem, just a misfire on cylinder #5 which could be compression, spark, or air/fuel issues. Fortunately cylinder #5 is an easy one to get to on the V6.

I'd still start by carefully double-checking everything you had apart. Any chance you took photos before removing the upper intake manifold?

-Rod

[305nole]

hey rod, yeah i checked everything had took apart several times but still no results. unfortunately i didn't take pictures, but i'm i put everything back in reverse of how i removed. does the hose i broke has anything to do with it, i doubt it because it has coolant in it.

[joegr]

Originally Posted by 305nole

hi joe, ok i disconnect the MAF and it starts and stays on but it revs up and down, then these codes came up: P2106, P0113pd, P0122pd, P0222pd, P0223pd P061Fpd, P2106pd, P2110pd. thanks for any help.

P0122 - Throttle/Pedal Position Sensor/Switch "A" Circuit Low
That's a serious one. I suppose it could be an issue with EMI from a bad coil, but it usually doesn't make it that far. You may need to go to a dealer.

P0222 - Throttle/Pedal Position Sensor/Switch "B" Circuit Low
It's getting even worse, go to a good Lincoln dealer.

P0223 - Throttle/Pedal Position Sensor/Switch "B" Circuit High
Go to the dealer.

P061F - Internal Control Module Throttle Actuator Controller Performance
Either this is a result of the above codes, or the source of them.

P2110 - Throttle Actuator Control System - Forced Limited RPM
Just a result of the above codes.

P2106 - Throttle Actuator Control System - Forced Limited Power
This is just a natural result of the P0122 and P0222 and P0223 codes.


P0113 - That's because you have the MAF disconnected. No worry there.

I think that either you have some really messed up coils or connections to them, or other serious wiring problems. This may be over your head at this point.

[305nole]

hey joe, was all of this going bad anyway or did i do something to cause this when i removed the manifold. also, do you think this is covered by pwertrain warranty or is this under electrical?

[305nole]

Also, back in December on my way home for Christmas break I hit a huge alligator going 80mph. I had alot of work done on it such as replacing the radiator and transmission lines. Would the impact of this accident cause any of my problems I'm facing now?

[joegr]

I don't think that the accident had anything to do with it.
I do think that it is more than coincidental with the recent work you did.
I doubt that it was going bad, and I doubt that it is more than one problem.
It should be covered under powertrain, but if this is an aftermarket warranty it may not cover anything that would ever fail.

[305nole]

hey joe, also there was burnt oil on the old spark plugs when i removed them, is that cause for concern also?

[joegr]

Originally Posted by 305nole

hey joe, also there was burnt oil on the old spark plugs when i removed them, is that cause for concern also?

I assume that you mean the outside parts of the sparkplug and not the spark gap area.
It means that your valve cover gaskets need to be replaced. Oil in the sparkplug wells can cause coil damage/failure. Letting the oil in the wells drain into the cylinders when you change the plugs can also make it difficult to start the engine at first.

[305nole]

there was oil on the spark side and on the threading