I need help big time
Pro
Joined: Apr 2018
Posts: 557
Likes: 105
With the pipe going red hot and the other pipe normal I would think you would look for a physical problem first. Cat problem, may not be fully clogged but coming apart inside and the flow is disrupted or something. Air added somewhere above. Maybe a cracked manifold. Once the physical problem option has been removed as a possibility I would consider the cable linked in this thread above so you can watch it live and let it tell you exactly what's going on. Otherwise its just throwing darts until you find it. That get's expensive and even more frustrating fast.
If you do go down the Opit road again before you throw another penny at it search up and consider the LTCC coil per cylinder option. That will remove the opti from the equation forever and it looks cool.
https://www.corvetteforum.com/forums...post1601954490
If you do go down the Opit road again before you throw another penny at it search up and consider the LTCC coil per cylinder option. That will remove the opti from the equation forever and it looks cool.
https://www.corvetteforum.com/forums...post1601954490
Last edited by Furias15x; Aug 24, 2020 at 02:31 PM.
Melting Slicks
Joined: Jul 2002
Posts: 2,223
Likes: 556
From: Tallahassee fl
a bad ECM can cause this and it happens suddenly. It also is a PITA to diagnose because since it is bad the codes generally are not helpful because the ECM doesn't just set a code that says "I'm bad"
Pro
Joined: Apr 2018
Posts: 557
Likes: 105
Last edited by Furias15x; Aug 24, 2020 at 02:41 PM.
Drifting
Joined: Jun 2018
Posts: 1,678
Likes: 229
From: Michigan
If Code 12 doesn't come up, that is the dummy check for if the ECM functioning properly
If you get codes for features not on the vehicle, this points to a faulty ECM as well. I had my TTA throw a Code 53 on me back in the day - Water Injection... never used from the factory. So, It was an indication the ECM was bad. Replacing the ECM fixed all the running issues with that car.
Another is when the ECM throws a large amount of seemingly unrelated codes together suddenly.
I thought he said he had swapped ECMs though.
Last edited by KyleF; Aug 24, 2020 at 05:30 PM.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Safety Car
Joined: Jan 2004
Posts: 4,549
Likes: 343
From: Glastonbury CT
You need a good scan tool which you can use as you drive. My Innova Scan tool picks up caution codes prior to actual codes. It is like a warning that something if you do not isolate a hard code will display.Another suggestion go to local corvette only shop and ask questions they have seen many situations like yours.
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Intermediate
Joined: Sep 2016
Posts: 46
Likes: 3
From: Carlisle PA
Timing
The only time I have seen glowing pipe was for timing to be way late. I would go old school. Chalk a TDC mark, 10 degree BTC mark, 20 BTC mark. and get a timing light.
8 inch pulley. 8times 3.14 = 25.12 around the outside. 25.12 divided by 360 = .07 per degree. A little less then 3/4 of an inch for 10 degrees. 1 7/16 for 20 degrees.
Does not take long to do. Put the mark to align with something you can get a light at and still get a look.
8 inch pulley. 8times 3.14 = 25.12 around the outside. 25.12 divided by 360 = .07 per degree. A little less then 3/4 of an inch for 10 degrees. 1 7/16 for 20 degrees.
Does not take long to do. Put the mark to align with something you can get a light at and still get a look.