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06-04-2023, 03:36 PM
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#1 |
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Do I need engine harness replacement for this?
Few months ago I replaced the radiator fans shroud at some shop, on that night a check engine came on and gave me a bunch of codes regarding camshaft position sensor actuator, recently been facing a problem where the car been hesitating and stalling when trying to start it while it's hot, i did the extra ground cables trick and didn't work
Yesterday I went to my mechanic he kept turning it on and off, a minute it'd start normally and another would stall, he said it's electrical problem and told me to go to a different garage, went to another one, he took a look at the codes and instantly said I need to change the whole engine harness. Anyone have any insights about this before I do the harness replacement? |
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06-05-2023, 03:00 PM
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#2 |
 
Drives: 2013 ZL1 Convertible A6 BRM Join Date: Feb 2015
Location: Dayton Ohio Area
Posts: 499
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How could you diagnose an issue JUST with codes, without a visual inspection or other diagnostic tests?
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2013 ZL1 CONVERTIBLE BRM A6
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06-05-2023, 03:04 PM
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#3 |
            
Drives: 2011 SS-RS Join Date: May 2011
Location: FLORIDA
Posts: 11,485
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Yea, you need to find a decent shop that knows what they are doing. Those 2 surely don't. Gotta be something in one of the sensors somewhere. The engine harnesses don't just go bad!
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TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.
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06-05-2023, 05:34 PM
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#4 |
Drives: 2013 Camaro 2SS AGM Join Date: Apr 2020
Location: WNY
Posts: 738
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Did they press diagnostic plan?
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2013 2SS GPI built & tuned 415, spec'd by Andrew Cammer. GPI ported intake/tb/heads, Tooley springs, CHE trunnions, Callies rotating assembly, Diamond pistons, GPI SS3 VVT, ATI 10% ud damper, Circle D 3800, Kooks ceramic coated lt's with green cats, Mishimoto rad & oil cooler, Derale trans cooler, Holley efi rails.
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06-05-2023, 11:14 PM
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#5 |
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Drives: LT W/2LT,blue metallic Join Date: Jul 2016
Location: central florida
Posts: 4,924
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is it possible the harness was damaged when the new radiator fans were installed? a pinched or bare wire could cause this,and if you can find it and fix it at home it would be a lot cheaper than a new engine harness.
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06-06-2023, 05:08 AM
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#6 | |
Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020
Location: Austin, TX
Posts: 2,146
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Quote:
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DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer
Build Thread https://www.camaro5.com/forums/showthread.php?t=609817 |
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06-06-2023, 05:40 AM
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#7 |
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Drives: 2013 Camaro 2SS AGM Join Date: Apr 2020
Location: WNY
Posts: 738
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Here is a little info on testing the circuit.
Red, that is a great point as it stated in the test procedure to move the harness/connector with the engine running to see if the scan data changes but it is too much info to post @ the moment. I think there could be a wiring/connector issue but the op is being misled. Circuit/System Testing 1. Ignition OFF, disconnect the harness connector at the appropriate Q6 Camshaft Position Actuator Solenoid Valve. 2. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 5 ohms between the low reference circuit terminal 2 and ground. ♦ If greater than the specified value, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K20 ECM. Note: A test lamp must be used for this test. The control circuit is pulled-up to a low current voltage, 1.5-4.5 V on the control circuit is normal. 3. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 1 and ground. ♦ If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the K20 ECM. 4. Connect the DMM black lead to the control circuit terminal 1. Connect the DMM red lead to B+. Set the DMM on the diode setting. Command the CMP actuator solenoid ON and OFF with a scan tool. The DMM should transition from OL when commanded OFF to less than 1 V when commanded ON. ♦ If the circuit voltage does not correspond to the specified values, test the control circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the K20 ECM. 5. If all circuits/connections test normal, test or replace the appropriate Q6 Camshaft Position Actuator Solenoid Valve. Component Testing 1. Ignition OFF, disconnect the harness connector at the appropriate Q6 Camshaft Position Actuator Solenoid Valve. 2. Test for 5-12 ohms between the control terminal 1 and the low reference circuit terminal 2 of the Q6 Camshaft Position Actuator Solenoid Valve. ♦ If not within the specified range, replace the Q6 Camshaft Position Actuator Solenoid Valve. 3. Test for infinite resistance between each terminal and the Q6 Camshaft Position Actuator Solenoid Valve housing.
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2013 2SS GPI built & tuned 415, spec'd by Andrew Cammer. GPI ported intake/tb/heads, Tooley springs, CHE trunnions, Callies rotating assembly, Diamond pistons, GPI SS3 VVT, ATI 10% ud damper, Circle D 3800, Kooks ceramic coated lt's with green cats, Mishimoto rad & oil cooler, Derale trans cooler, Holley efi rails.
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