P1117 - can't clear code

[Zzorro]

Originally Posted by blue62

I wonder if a solenoid on one bank or the other is not kicking the Variocam system in when your lose of power issues occurs???? Just a thought.

Researching now. I'll hook up durametric and snoop around a bit. See if I get consist actuation and look at the deviations etc. But it does look like others have reported similar symptoms with variocam.

[Zzorro]

Finally got around to hooking up the durametric.
I am able to activate both banks variocam solenoids and I get a def change in engine behavior when I do at idle. So theoretically these actuators are working properly.

My stumbling issue could be related to inconsistent operation of one or both of these actuators maybe? Will keep an eye on it.

On another note, my crank deviation position reads 0 degrees. Not sure if that's normal or not. Assumed I would see some deviation considering the age of the car.

[blue62]

Originally Posted by Zzorro

Finally got around to hooking up the durametric.
I am able to activate both banks variocam solenoids and I get a def change in engine behavior when I do at idle. So theoretically these actuators are working properly.

My stumbling issue could be related to inconsistent operation of one or both of these actuators maybe? Will keep an eye on it.

On another note, my crank deviation position reads 0 degrees. Not sure if that's normal or not. Assumed I would see some deviation considering the age of the car.

I assume you mean camshaft deviation.
0 camshaft deviation does sound unusual.
Take the car for a 20-30 minute drive then take the reading.
What ever reading you get it should stay steady no matter the RPM.

[Zzorro]

You are correct. Camshaft deviation is what I meant. After a 1/2hr drive I plugged in the durametric and got 1.0 degrees. So in spec.

But still got that stumbling. No codes or CEL. While rolling, I shut off the ignition and restart and it seems to go away. Very strange.

[blue62]

Originally Posted by Zzorro

You are correct. Camshaft deviation is what I meant. After a 1/2hr drive I plugged in the durametric and got 1.0 degrees. So in spec.

But still got that stumbling. No codes or CEL. While rolling, I shut off the ignition and restart and it seems to go away. Very strange.

Interesting that you get 1.0 degrees of deviation on it with the mileage you have.
I wonder if the electrical gremlins your having with the CLU are also manifesting in other areas? Such as the stumbling.

[Zzorro]

Yep. Possibly.
I have an invoice from PO that shows an engine replacement 100k kms ago. So while I have 176k kms on the dial, my motor may be younger.

[Zzorro]

Well I pulled the insurance off today. So won't really get much testing done.

~500 kms since the O2 sensor swap. And have not had a CEL yet. So I think it's safe to say that there has been a positive benefit to making the swap.

There is better performance overall I think.

There remains a stumbling at higher revs occasionally still. But i'll chase that down next "driving season".

Over the winter I'll look into the SAI, get the CLU fixed and if I feel ambitious, maybe venture into the variocam actuator world.

Thanks again blue62 for following along and making suggestions.