ENGINE HOT/AIR CONDITIONING OFF in DIC!!!
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,569
Likes: 4
From: Phoenix AZ
St. Jude Donor '09-'10-'11
Situation normal
Melting Slicks
Joined: Aug 1999
Posts: 3,422
Likes: 9
From: Rockaway, NJ
I did try a few things yesterday which included checking on the cable and also removing some coolant from the overflow tank. As it turned out, when I had the thermostat changed to a 160 degree unit, they overfilled the overflow tank. Hence I figured bringing it down to the proper level would be a good idea. I drove the Vette over the weekend and the problem did not re-appear but I am still not confident it went away..
Safety Car
Joined: May 2000
Posts: 4,827
Likes: 352
From: Albuquerque NM
I'm sorry I don't remember exactly, when mine occured (two years ago) the code we pulled up was either:
DTC P0126 Insufficient ECT for Stable Operation
DTC P0128 Coolant Thermostat
With the cooler weather more will experience this. Using HP Tuners we disabled the reporting of this code.
YLOFEVR: The code will still be there, but listed as H for history, not C for current. Check it, you'll see.
DTC P0126 Insufficient ECT for Stable Operation
DTC P0128 Coolant Thermostat
With the cooler weather more will experience this. Using HP Tuners we disabled the reporting of this code.
YLOFEVR: The code will still be there, but listed as H for history, not C for current. Check it, you'll see.
Melting Slicks
Joined: Aug 1999
Posts: 3,422
Likes: 9
From: Rockaway, NJ
I'm sorry I don't remember exactly, when mine occured (two years ago) the code we pulled up was either:
DTC P0126 Insufficient ECT for Stable Operation
DTC P0128 Coolant Thermostat
With the cooler weather more will experience this. Using HP Tuners we disabled the reporting of this code.
YLOFEVR: The code will still be there, but listed as H for history, not C for current. Check it, you'll see.
DTC P0126 Insufficient ECT for Stable Operation
DTC P0128 Coolant Thermostat
With the cooler weather more will experience this. Using HP Tuners we disabled the reporting of this code.
YLOFEVR: The code will still be there, but listed as H for history, not C for current. Check it, you'll see.
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,569
Likes: 4
From: Phoenix AZ
St. Jude Donor '09-'10-'11
Codes for this problem
I'm sorry I don't remember exactly, when mine occured (two years ago) the code we pulled up was either:
DTC P0126 Insufficient ECT for Stable Operation
DTC P0128 Coolant Thermostat
With the cooler weather more will experience this. Using HP Tuners we disabled the reporting of this code.
YLOFEVR: The code will still be there, but listed as H for history, not C for current. Check it, you'll see.
DTC P0126 Insufficient ECT for Stable Operation
DTC P0128 Coolant Thermostat
With the cooler weather more will experience this. Using HP Tuners we disabled the reporting of this code.
YLOFEVR: The code will still be there, but listed as H for history, not C for current. Check it, you'll see.
How do I pull-up the codes without an OBD II Scanner?
Le Mans Master
Joined: Sep 2001
Posts: 5,857
Likes: 84
From: Gainesville VA
I had this problem when I forgot to plug the maf back in when I was installing my intake and turned the car on. Only way to clear is with a odb scanner and rest all of the codes. Worked for me instantly. I used a cheapy reset tool.
Safety Car
Joined: May 2000
Posts: 4,827
Likes: 352
From: Albuquerque NM
Jiffy lube, autozone, pep boys,
Racer
Joined: Aug 2006
Posts: 439
Likes: 0
From: Joppa MD
Coolant Temp Code
Your problem is from the coolant temp not getting up high enough quick enough to meet the GM spec. I had the same thing on my car after a 160 stat install and cooler weather temps. My tuner fixed this easily with his software. As well my tuner will be in BelAir MD. this week doing some work at a Corvette Performance shop. If you want to get this programming done just drop me an email or IM and I'll give you the shop info.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
7th Gear
Joined: Aug 2008
Posts: 7
Likes: 0
From: Niwot Colorado
OK - so I am bothered by the dreaded P0128 now - dropped in a much bigger Dewitts Radiator and a 160 thermostat ... we track the Vette and it's FI (Vortech) ... and we run water wetter ... This summer we had huge heating issues (boiled, then blew, the power steering fluids, no less)! But the combination of what we did kept the big Vette tracking flawlessly. But with winter, and as a daily drive, it's just not coming up to heat in the time GM expects (of course).
So, question - can this be managed by re-tooling the software? Are you sure? Seems as though you all are ...
If so, what program(s) / table(s) are involved? What advice do I take to my tuner?
So, question - can this be managed by re-tooling the software? Are you sure? Seems as though you all are ...
If so, what program(s) / table(s) are involved? What advice do I take to my tuner?
Tolero Apto Victum
Joined: Jul 2007
Posts: 9,669
Likes: 37
From: Woodlands TX
Instructor
Joined: Nov 2004
Posts: 157
Likes: 2
From: Santa Ana California
When I was getting this message it was the fan connector had melted. Check the connector, you can reach it from the top passenger side. Its right behind the fan. Mine had one side completely melted (the red one) and the black one was partially melted. I hard wired the connections and the messages went away.
