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  #1  
Old 10-22-2013, 07:49 AM
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Mobil 1 and MDS

Hey guys,

I have a question about the MDS on my 14 GC 5.7 limited. I changed the oil about 500 miles ago (4000miles on the jeep) to Mobil 1 5w-20 Advance fully synthetic and MO-899 Mopar filter. today I got a check engine light so I scanned it and got these codes:

P3401- Powertrain
cylinder 1 deactivation/intake valve control circuit/open
P-3425 - Powertrain
1 cylinder 4 deactivation/intake valve control circuit/open
P3441- Powertrain
cylinder 6 deactivation/intake valve control circuit/open
P3449- Powertrain
cylinder 7 deactivation/intake valve control circuit/open
P0134- Powertrain
02 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
U0140-Network
P3034-Powertrain

Could this be caused by this oil? I put 7qts in and it's right on the money. I'm thinking about draining it and switching to Pennzoil ultra since it's Standard MS-6395 and Mobil 1 isn't before taking it in. I've never dealt with MDS so I'm checking to see if anyone knows if this is a sign of it malfunctioning.
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  #2  
Old 10-22-2013, 08:42 AM
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Re: Mobil 1 and MDS

Have the exact same Mobil1 in mine with no issues.
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Old 10-22-2013, 08:46 AM
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Re: Mobil 1 and MDS

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Originally Posted by 2014RedHemiGC View Post
Have the exact same Mobil1 in mine with no issues.
X2

Changed the factory oil out at 1000 miles and just clicked over 13000. Two fill ups now with mobil 1.
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Old 10-22-2013, 10:46 AM
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Re: Mobil 1 and MDS

Quote:
Originally Posted by Aksledneck View Post
Hey guys,

I have a question about the MDS on my 14 GC 5.7 limited. I changed the oil about 500 miles ago (4000miles on the jeep) to Mobil 1 5w-20 Advance fully synthetic and MO-899 Mopar filter. today I got a check engine light so I scanned it and got these codes:

P3401- Powertrain
cylinder 1 deactivation/intake valve control circuit/open
P-3425 - Powertrain
1 cylinder 4 deactivation/intake valve control circuit/open
P3441- Powertrain
cylinder 6 deactivation/intake valve control circuit/open
P3449- Powertrain
cylinder 7 deactivation/intake valve control circuit/open
P0134- Powertrain
02 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
U0140-Network
P3034-Powertrain

Could this be caused by this oil? I put 7qts in and it's right on the money. I'm thinking about draining it and switching to Pennzoil ultra since it's Standard MS-6395 and Mobil 1 isn't before taking it in. I've never dealt with MDS so I'm checking to see if anyone knows if this is a sign of it malfunctioning.
I'd read the DipStick threads to be sure. There is some issue with dipsticks being wrong length. But that might only apply to 5.7's that had the oil pan changed to fix the smoking problem.
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  #5  
Old 10-22-2013, 12:14 PM
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Re: Mobil 1 and MDS

It sure shouldn't be cause by the oil -- assuming all the caps were sealed. I've read horror stories about people dumping used oil in bottles, and returning to Walmart. You are under warranty, so call your dealer. Your Hemi wouldn't know the difference if you dumped it, and put PU in.
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Old 10-22-2013, 05:00 PM
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Re: Mobil 1 and MDS

Quote:
Originally Posted by Aksledneck View Post
Hey guys,

I have a question about the MDS on my 14 GC 5.7 limited. I changed the oil about 500 miles ago (4000miles on the jeep) to Mobil 1 5w-20 Advance fully synthetic and MO-899 Mopar filter. today I got a check engine light so I scanned it and got these codes:

P3401- Powertrain
cylinder 1 deactivation/intake valve control circuit/open
P-3425 - Powertrain
1 cylinder 4 deactivation/intake valve control circuit/open
P3441- Powertrain
cylinder 6 deactivation/intake valve control circuit/open
P3449- Powertrain
cylinder 7 deactivation/intake valve control circuit/open
P0134- Powertrain
02 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
U0140-Network
P3034-Powertrain

Could this be caused by this oil? I put 7qts in and it's right on the money. I'm thinking about draining it and switching to Pennzoil ultra since it's Standard MS-6395 and Mobil 1 isn't before taking it in. I've never dealt with MDS so I'm checking to see if anyone knows if this is a sign of it malfunctioning.
Those are all complaining that the electronics that control MDS aren't able to see their controls. You've got something wrong in those electronics which could just be a loose connector.

Unless you mixed it with etching acid and poured it all over the engine, or disassembled the entire under hood to change oil, those are not oil related messages.
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Old 10-22-2013, 08:16 PM
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Re: Mobil 1 and MDS

Quote:
Originally Posted by Aksledneck View Post
Hey guys,

P3401- Powertrain
cylinder 1 deactivation/intake valve control circuit/open
P-3425 - Powertrain
1 cylinder 4 deactivation/intake valve control circuit/open
P3441- Powertrain
cylinder 6 deactivation/intake valve control circuit/open
P3449- Powertrain
cylinder 7 deactivation/intake valve control circuit/open
P0134- Powertrain
02 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
U0140-Network
P3034-Powertrain
This is electrical in nature -- not oil related. It could be an issue with the PCM or a short/open somewhere in the wiring harness. Oil issues won't cause these types of codes. I'm betting on a bad PCM or a bad connector/splice in the wiring harness.
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Old 11-04-2013, 10:47 AM
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Re: Mobil 1 and MDS

I run mobil 1 EP and do not have these issues. i belive it is electrical and has nothing to do with the oil.
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