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2C57 low charging pressure and/or not plausible

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2C57 low charging pressure and/or not plausible

  #51  
Old 03-31-2019, 03:25 PM
dmath
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While there will certainly be some difference of opinion, the conventional wisdom on NAM seems to be that with coils OEM is the best way to avoid problems.
 
  #52  
Old 03-31-2019, 04:07 PM
Mochanic
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I cannot remember where I got the coils, but they were definitely OE from a 3rd party for far less than dealer prices!
 
  #53  
Old 04-12-2019, 07:14 PM
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Zachary Nguyen
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Welp. Valve cover replaced yesterday. There was tons of oil in the 3rd spark plug tube. Cleaned that all out too. Drove, all good. Had another misfire cylinder 3. Swapped coil 3/4. No misfires since. Some stepping on the pedal here and there for fun, boost pressure all good. Consistently hits 13 psi stock or 21 ish with nm power module on high. Drove around a little more just cruising and the dreaded half engine CEL and ď2C57 charging pressure control, plausibility pressure too lowĒ came back on. Can it really be the wastegate if Iím able to hit 21 psi with the power module? Maybe I should have the vacuum lines checked or something? Get another smoke test done at an indy shop or just take it to the dealer and pay up?
 
  #54  
Old 04-12-2019, 07:56 PM
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Originally Posted by Zachary Nguyen View Post
Dang wish we could get an update from anyone thatís replaced it but still had issues. I recently got identical issues on stock in my 2011 mcs. Long slight uphill at ~75mph. Added a bit more throttle and got half engine and 2c57. Havenít had the car for long so unfortunately donít know what it feels like with low boost pressure vs normal. Have no hope that Iím under the turbo extended warranty. Just really hope itís not the wastegate. MrGrumpy, would you go with that same turbo again if you could do it all over? I wouldnít mind some extra power in my turbo but most of all want reliability and ease of install (not requiring tons of aftermarket stuff)
Sorry I never saw this. Yes I would absolutely buy the same turbo again. Itís still working terrific. Just as a straight bolt on replacement, there is a noticeable improvement, but combined with the tune, itís really a different car! The only thing I would do differently now, is possibly going one size bigger to the 42mm. But am perfectly happy with the 40mm! I originally was just going to do a straight swap without tuning, so it made sense. If I knew I was going to end up tuning it, I may have gone a bit bigger. But Iíve driven one just like mine with the same tune and a 42mm turbo, and mine makes better power I think, for the way I drive. It spools just a hair quicker.
 
  #55  
Old 04-23-2019, 01:53 PM
Mochanic
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Started to take everything off today to replace the turbo so that we can sell this giant headache! Since we are selling it we have no interest in doing any mods to it, so what turbo would you guys recommend putting on it just to fix the CEL. I don't want to sell this to somebody only for them to have the same issues.
 

Last edited by Mochanic; 06-05-2019 at 08:21 PM.
  #56  
Old 06-05-2019, 08:45 PM
Mochanic
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Well it looks like you guys were right, and now I completely understand why the turbo was the issue.
The wastegate had a TON of slop and wear, a lot of it was in the linkage itself which is part of the turbo and cannot be adjusted out.
The new Cardone turbo I installed had almost none, and now there is no rattling noise at start up.

I was able to replace the turbo without really taking much off the car. No service mode BS... Just took the catalytic converter and heat shields off and was able to get to all the bolts, even left the exhaust manifold in place. Probably took me a total of around 4hrs.





Finally I can sell this over-engineered POS!
 
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  #57  
Old 06-07-2019, 02:26 PM
motorana
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Originally Posted by Mochanic View Post
Well it looks like you guys were right, and now I completely understand why the turbo was the issue.
The wastegate had a TON of slop and wear, a lot of it was in the linkage itself which is part of the turbo and cannot be adjusted out.
The new Cardone turbo I installed had almost none, and now there is no rattling noise at start up.

POS!
Mochanic, which website did you purchase the Cardone turbo form? It looks like they only rebuild/refurbish the turbos for Minis now and do not manufacture new ones or at least that is what they say on their site once you select the Make and model of the car.

If you don't mind me asking how much did it cost?

Thank you
 
  #58  
Old 06-07-2019, 04:06 PM
Mochanic
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Originally Posted by motorana View Post
Mochanic, which website did you purchase the Cardone turbo form? It looks like they only rebuild/refurbish the turbos for Minis now and do not manufacture new ones or at least that is what they say on their site once you select the Make and model of the car.

If you don't mind me asking how much did it cost?

Thank you

It came from Ebay and it shows it is 100% new. Here is the link: https://www.ebay.com/itm/Turbocharge...9/163572542206

It looks identical to the OEM Borg Warner that I took off and came with everything except the oil return hose O-ring which is insanely expensive for an O-ring (over $8!) There is no way I would go through all that work and not replace the original O-ring.
 
  #59  
Old 06-07-2019, 04:26 PM
Mochanic
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Now there is a new problem... go figure!

There is a significant hesitation/stumbling during acceleration that was not there before replacing the turbo (with a worn out waste gate).
It has the stock OEM mapping and has never been messed with. New coil packs and NGK plugs installed in April. There is no check engine light or stored codes. It's almost like it gets to much boost, then the computer opens the waste gate for just a second and repeats this causing a surging feel. Wouldn't this throw a CEL for an over boost condition if that were the case?
I installed the OEM cut off valve onto the new turbo since it was brand new only a few months ago.

So now what?

Did I tell you guys how much I hate this POS?
 
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