07-08-2023, 07:49 AM | #1 |
Drives: 2013 AGM ZL1, '70 Chevelle 454 Join Date: Apr 2019
Location: Willow Grove, PA
Posts: 105
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Problem at Track Night
Did track night at Pocono Raceway on Thursday and unfortunately had issues. First I went to leave and a/c was not working, disconnected the battery for 10 minutes and that fixed the problem. Drove 1.5 hours to track no issues. Drove the novice pace laps, no problems. Go to pull out of the paddock garage and it feels like I have 2 flat front tires, look down at the dash and it's lit up light a Christmas tree (see pic). One of the workers has the professional scan tool and says none of the control modules are responding, he resets/clears the modules and the car seems fine. Only got in 2 laps in the second session due to a car spun off the course, no problems. 3rd session I ran 6 to 7 laps with no issues and called it a night, was looking at my dash too often and couldn't concentrate. Drove 1.5 hours home with no problems. Any ideas? Ground issues maybe? Battery is 3 years old and voltage is in the normal operating range.
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2013 ZL1, M6, AGM, CAI, 1 7/8 Kooks Headers, 10% OD Pulley, ID1050 Injectors, 575 RWHP
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07-08-2023, 09:12 AM | #2 |
Drives: ZL1, 2013, tri-coat-red, manual Join Date: Nov 2013
Location: Michigan
Posts: 1,607
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Ground issues are notorious on these cars.. Ground post at cold air intake, engine ground below right valve cover, power steering ground, especially if they are daily drivers or if they have been modified and you didn't do the work. Batteries also check under start load should be around 11 volts but not below, be sure to check run voltage at the battery as it should be 14.2 to .7, if its a flooded battery check the cells and top off with distilled if needed.
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07-08-2023, 08:24 PM | #3 |
Drives: 2013 AGM ZL1, '70 Chevelle 454 Join Date: Apr 2019
Location: Willow Grove, PA
Posts: 105
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Thanks I will check the grounds. I do have another theory...I had my OBD Link plugged in to send data to the Track Addict app, a couple of guys I was with said they heard this can sometimes cause issues. Did a little searching and found a thread on Camaro5 where others experienced odd problems when using OBD wireless devices. Just curious if anyone else has experienced this.
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2013 ZL1, M6, AGM, CAI, 1 7/8 Kooks Headers, 10% OD Pulley, ID1050 Injectors, 575 RWHP
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07-08-2023, 11:44 PM | #4 | |
Drives: ZL1 Join Date: Oct 2012
Location: Talladega
Posts: 631
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Quote:
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07-09-2023, 05:29 PM | #5 |
Drives: 2013 BRM ZL1 Camaro M6 Join Date: Feb 2014
Location: Auckland, New Zealand
Posts: 160
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On rare occasions, my OBD Link MX+ has caused unusual behaviour such as you describe.
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07-09-2023, 06:50 PM | #6 |
Drives: 2013 AGM ZL1, '70 Chevelle 454 Join Date: Apr 2019
Location: Willow Grove, PA
Posts: 105
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Thanks for letting me know. I'm convinced the OBD Link caused the issue. Will disconnecting the battery resolve the problem?
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2013 ZL1, M6, AGM, CAI, 1 7/8 Kooks Headers, 10% OD Pulley, ID1050 Injectors, 575 RWHP
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07-10-2023, 08:23 PM | #7 |
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While it's not a Camaro, my 2007 Avalanche does some really weird stuff if I plug my UltraGauge into the OBD port with the ignition on. It lights up the CHECK ENGINE light, displlays the SERVICE STABILITRACK message, and causes the UltraGauge to hang-up mid-boot.
Plug it in with the ignition off - - No issues. |
07-10-2023, 09:09 PM | #8 |
Drives: 2013 Triple Black ZL1 / 2006 TB SS Join Date: Feb 2011
Location: MN
Posts: 2,250
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More than likely the wireless OBD device caused the CAN bus to lose connection between the controllers causing the issue.
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07-10-2023, 09:52 PM | #9 | |
Drives: 2013 AGM ZL1, '70 Chevelle 454 Join Date: Apr 2019
Location: Willow Grove, PA
Posts: 105
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Quote:
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2013 ZL1, M6, AGM, CAI, 1 7/8 Kooks Headers, 10% OD Pulley, ID1050 Injectors, 575 RWHP
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07-11-2023, 12:07 AM | #10 | |
Drives: 2013 BRM ZL1 Camaro M6 Join Date: Feb 2014
Location: Auckland, New Zealand
Posts: 160
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Quote:
Everybody else has to reverse-engineer a interface and sometimes there may be an oversight with compatibility. I have had one or two random dashboard warning issues with OBD Link MX+ where it was permanently installed and running the phone app all of the time. These issues were resolved by simply unplugging and reinserting it, but I now only occasionally plug it in, use it as needed, and it is reliable. I also had a Scosche GM5201AB dash kit cause random warning chimes that refused to stop, until I just ignored them and drove off, and that kit eventually failed and is now in the junk pile now. There is a lot of complexity to these cars, and occasionally the odd "gremlin" of unexplained origin will interfere with the various computer modules and CAN bus signalling, and a reset by disconnecting the battery will resolve such issues. |
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