I dont know how many of you saw my last post on what happened, but here's a small re-cap:

I turn my car on, and it has a misfire...turn it off and back on..it goes away... stop by to put gas... turn the car off, back on and misfire... this time it doesnt go away....

I start it up and as the car is running I unplug cylinder #6 and it gets worse... plug it back in, do the same to cylinder 1, 4, 5 and 2(couldnt get to #3)... and cylinder two has no affect. At this point, I've narrowed it down to cyl#2.

So I checked the coilpack.. its good. I checked the harness, wires, and connectors and everything is within spec.
I turn the car back on and remove coilpack #4 and replace it with #2 and still #2 has no spark. After several attempts of turning it off and on, the car doesnt start. I does start to smell like gas(assuming the car is getting flooded).... so I let it sit for a couple of hours and then try it again and the car starts, but with the same misfire.

I thought it could probably be the ignition or the ECU, but both turn out okay. I replace the igniton condensor to see if maybe it might help but nothing.

As i look into the codes, I come across (dont recall the exact code#) the Camshaft position sensor malfunction. I start to get readings from it and the readings on the sensor, the harness, and connections are all okay!!??

WTF!!??? Could it be that the timing is off??? I thought about this but wouldnt it be doing it to all cylinders rather than just #2??

At this point, i've exhausted almost all options other than pulling the motor to re-do or check the timing... I would hate to do that and for it not to solve the problem.

I also bought the CPS but I am very skeptical of installing it because it was 100.00 and I dont think its the problem.. even though the ECU threw out that code.
I dont know if it threw out that code because its out of timing or what!!??? I need the experts help!!! PLEEASE!!!

Just to add.... this is on my 3.5-- swap

 

Since the VQ is a sequential ignition, it may be the wire, ECU leading up to the Cyl#2 coilpak. Check each place to see which is at fault.

 

Thats been done and I found nothing. There is continuity between the signal, power and ground wires.

 

And you can see signal going to the #2 coilpack (ECU pin 2)? Is coilpack #2 getting 12V? You have a good plug in cylinder #2?

 

If ur coil packs are within spec and all connections are proper, I would go next to ur injector (mayb leaking or chk ground) also sparkplug (check gap don't trust the pre-gapped ones).

 

good plugs in it, good signal.... and the injectors wouldnt have anything to do with the lack of spark.

The spark plug wouldnt really have nothing to do with it in this case either.. the reason I say it is because when the car is running, I remove the coilpack, and you can see the spark igniting in each coilpack as its removed and you also here the ticking noise..... with cyl#2, there is no spark when the coilpack is removed and there is no ticking noise either.

I think I have completely ruled out the chances of it being the coilpacks, spark plugs(which I replaced with new ones), and the wiring from cyl#2 coilpack.

My assumption is that either
1) the CPS is bad and maybe reading wrong voltage during operation, but not while the car is off, causing the lack of voltage to misfire
or
2)the timing is off on the motor itself.... which I think it would be misfiring at all cylinders.

In the fsm, it states that the signs of the CPS malfunctioning is when the cylinder no signal is not entered to the ECM during engine cranking, during engine running, or is not sending out the signal in the normal pattern (which leads me to assume the timing would be completely off)

These are all symptoms of my car's problem... but is it the timing or the CPS only!!??

This freakin sucks!!!

BTW, any of you know how to read the timing off of the 3.5 using a timing gun!? How do you read the timing gun!?? I've never used one, but have one....lol funny stuff!

 

Disconnect CPS and start engine without it. After a few cranks, ECU should start engine in fail-safe mode. Check if you have the spark.

IMHO, with timing off, your car would run very-very bad. 1 cylinder missfiring is almost unnoticable on high RPMs.

PS: I wonder why don't you see CYL 2 missfire in the error code list?