Cold weather issues?

Tech discussions on the L77 6.0L V8.
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camrat68
Posts: 181
Joined: Mon May 01, 2017 12:47 am
Location: Appleton, WI

Cold weather issues?

Post by camrat68 » Mon Feb 04, 2019 8:16 pm

Recently in Central WI we had two days of -26* actual temp not wind chill.

The second day my Wife told me that her '12 PPV started throwing check engine codes on start-up after work.

The codes are
P0523 engine oil pressure
P1516 throttle actuator control
P2101 throttle actuator control
P0442 evap emission system

We have an OTR-CAI intake installed and I've run into issues on my '95 with throttle blades freezing into position with a similar short intake tract. Everything seems to be working OK and it drives fine although she said it initially ran rough. I'm just wondering if it's safe to drive roughly 60 miles a day like this until I can clear the codes?

Thanks,
Jim
Jim Chesnutt
1968 Camaro -my first car.
1995 Black/White 9C1 Caprice
2012 Alto Gray Metallic 9C1 Caprice--The HoDag-Solo axle back exhaust, improved racing OTR CAI intake.
2013 Black/White 9C1--NADACOP-Stock. For now......

SS396ELKY
Posts: 15
Joined: Wed Jan 02, 2019 6:07 am
Location: Wichita

Re: Cold weather issues?

Post by SS396ELKY » Thu Feb 07, 2019 2:39 am

I'm interested to see where this goes... This morning here in KS it was cold about 19 degrees and misting, my 2012 PPV popped a P0523 code... No other codes were displayed... After a quick google search I read where this could be a number of problems...
1. Faulty Switch
2. Wrong oil
3. Clogged switch filter...?
4. Bad wiring
5. Bad CPU (Not)

Where is this switch located...?
Thanks in advance...

lastcall190
Posts: 328
Joined: Mon Sep 11, 2017 10:17 am
Location: North Jersey

Re: Cold weather issues?

Post by lastcall190 » Thu Feb 07, 2019 11:28 am

Located behind the intake manifold close to the driver's side edge. Unplug the connector and then a long socket to loosen (cant recall size off top of my head)

-J
2012 Caprice
!DOD : LS9 Cam : Pat G : Magnaflow : VCM

2008 CVPI
168k and going strong

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Mooseman
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Location: Ottawa, ON Canada
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Re: Cold weather issues?

Post by Mooseman » Thu Feb 07, 2019 3:31 pm

For #3, under the oil pressure switch, inside the port, there is a small screen filter. It can be cleaned if not damaged when pulling it out with a dental pick or can be replaced.

This video shows it very well. Cued to the actual job as he talks a lot about the why's and reasons for replacing the filter with the sensor. Use part numbers for your car (he talks about a sensor and a switch, ours is a sensor). This is on a FWD so the motor is sideways. Imagine it in your RWD. It's a tight area to work in.

2011 Caprice PPV, 1 of possibly 4 in Canada!
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camrat68
Posts: 181
Joined: Mon May 01, 2017 12:47 am
Location: Appleton, WI

Re: Cold weather issues?

Post by camrat68 » Tue Apr 02, 2019 2:50 am

We got the P0442 code to go away with a new purge valve. I had to have a dealer replace the oil pressure switch but even after I explicitly said to replace the screen, they put the old one back in after saying it looked good. :x Now the P0442 code came back but I'm still trying to diagnose it since I used the cheapest purge solenoid Advance had. :oops:
Jim Chesnutt
1968 Camaro -my first car.
1995 Black/White 9C1 Caprice
2012 Alto Gray Metallic 9C1 Caprice--The HoDag-Solo axle back exhaust, improved racing OTR CAI intake.
2013 Black/White 9C1--NADACOP-Stock. For now......

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Mooseman
Posts: 359
Joined: Tue Jun 13, 2017 4:35 am
Location: Ottawa, ON Canada
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Re: Cold weather issues?

Post by Mooseman » Tue Apr 02, 2019 1:12 pm

Did you check the gas cap? If it's on tight, try replacing it. It's a quick, cheap and easy part to replace and is a usual culprit. After that, it could be be vent valve. If shotgunning isn't your style, then a smoke test should find the leak but that's an extra expense.
2011 Caprice PPV, 1 of possibly 4 in Canada!
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