CEL Codes P0700, P2855
Thread Starter
Intermediate
Joined: Oct 2019
Posts: 26
Likes: 12
CEL Codes P0700, P2855
So I had a check engine light come on last week (P2855 & P0700). Initially I cleared the code, because I was driving pretty hard while trouble shooting a CEL after swapping to 200cell cats.
I never noticed any change in anything, but I’m thinking I’m going to have it dropped off at a dealership tomorrow to have it looked at.
I never noticed any change in anything, but I’m thinking I’m going to have it dropped off at a dealership tomorrow to have it looked at.
The Consigliere
Joined: May 2006
Posts: 23,003
Likes: 6,045
From: 2023 Z06 & 2010 ZR1
Sounds like your new/different cats are the issue. You could swap the stock cats back on and see if the CEL stays gone. That would at least tell you if your aftermarket cats are the prob.
Race Director
Joined: Nov 2005
Posts: 14,553
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From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
We replaced a DCT recently for a clutch performance code similar to the one you posted. Other than the control (valve bodies), filter and a couple other seals/maintenance parts, nothing is serviceable so you might also be getting a new transmission.
Thread Starter
Intermediate
Joined: Oct 2019
Posts: 26
Likes: 12
Would aftermarket cats be something that would potentially void a warranty?
Team Owner
Joined: Feb 2013
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From: Calgary, AB. There's a reason why white was the only color offered on every year Corvette. Proud Canadian German Jamaican!
St. Jude Donor '09, '12-'13-'14-'15-'16-'17
mod the car, risk voiding the warranty....not worth it IMO.
Race Director
Joined: Nov 2005
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From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
Not really, but why not exaggerate on an automotive forum. 
When we replaced one last month, we were the 3rd dealership to replace a unit. I'm sure there's been a couple more since then, but the reason it seems like so many is that nothing is serviceable in them. If you need a small item that would usually be a replaceable part, you get a complete transmission. Eventually that will likely go away, but for now it makes it seem like they're failing.
When we replaced one last month, we were the 3rd dealership to replace a unit. I'm sure there's been a couple more since then, but the reason it seems like so many is that nothing is serviceable in them. If you need a small item that would usually be a replaceable part, you get a complete transmission. Eventually that will likely go away, but for now it makes it seem like they're failing.
Drifting
Joined: Feb 2017
Posts: 1,778
Likes: 902
Not really, but why not exaggerate on an automotive forum.
When we replaced one last month, we were the 3rd dealership to replace a unit. I'm sure there's been a couple more since then, but the reason it seems like so many is that nothing is serviceable in them. If you need a small item that would usually be a replaceable part, you get a complete transmission. Eventually that will likely go away, but for now it makes it seem like they're failing.
When we replaced one last month, we were the 3rd dealership to replace a unit. I'm sure there's been a couple more since then, but the reason it seems like so many is that nothing is serviceable in them. If you need a small item that would usually be a replaceable part, you get a complete transmission. Eventually that will likely go away, but for now it makes it seem like they're failing.
Racer
Joined: Jan 2020
Posts: 264
Likes: 85
From: Florida
So did you find anything out about these codes? I just got the same two today driving home from work. Not even 2000 miles yet. Onstar did an online diagnostic & said everything was fine but when they emailed the info these codes were on it.
