Electrical problem - Possessed 2SS - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

byrdman73 · 04-27-2015, 08:38 PM

An intermittent problem developed after a remove/repair of the engine last year. Difficulty starting followed by "Service Stabilitrack" and the tach not working. After a cool down it would go away for a couple months. Just replaced roller rockers and was running fine for about 40 miles. Then the demon set in. Codes as follows:

-V2100 ABS CAN BUS COMMUNICATION
-ABS CONTROL MODULE POWER CIRCUIT
-P0300 ENGINE RANDOM MULITPLE MISFIRE
-P0324 ENGINE KNOCK CONTROL SYSTEM MALFUNCTION
-P0336 ENGINE CRANKSHAFT POSITION SENSOR A CIRCUIT RANGE PERFORMANCE
-P0307 MOD CYLINDER 7 MISFIRE

Tire pressure light, stabilitrac light, traction control light, came on and off intermittently.Engine light came on, sometimes blinking, sometimes steady. Oil pressure and voltage are fine.

I did find out that if I drive exactly 36mph, the speedo needle covers the check engine light so I don't have to look at it.

byrdman73 · 04-28-2015, 08:27 AM

I think I missed one crucial bit of information...

2010 Camaro 2SS/RS. Headers, exhaust, supercharger cam.

goldcoastmat · 04-28-2015, 08:47 AM

I've had similar issues twice..

The first time it was a speed sensor. (lights only, lost ABS, stabilitrak, power steering, and traction control)

Second time it was the ground wire for the coil packs. (lost all of the above and caused a misfire)

Problem with the CANBUS system on these cars is they are all interconnected, one sensor, one ground wire, one almost anything along the system and everything lights up like a Christmas tree.

byrdman73 · 04-29-2015, 10:09 PM

Update:
I'm in the process if finding out what isn't the problem. I cleared the codes and the only code that has reoccurred is P0307 (cylinder 7 misfire). I very recently replaced the roller bearings on the rockers. Pulled left valve cover, All on the left bank are in place and torqued right. Switched coil packs between 1 and 7. Cleared codes. P0307 reoccurred. Tomorrow, spark plugs and compression check.

"Service Stabilitrack" and associated lights are still intermittently on.

byrdman73 · 04-30-2015, 11:22 PM

Update:
Found it. 180+ psi on 1,3,&5. Zero on #7. On closer inspection, broken valve spring on #7 exhaust valve.

04-27-2015, 08:38 PM	#1
byrdman73 Drives: 2010 Camaro 2SS/RS Join Date: Aug 2013 Location: Willow Spring, NC Posts: 6	Electrical problem - Possessed 2SS An intermittent problem developed after a remove/repair of the engine last year. Difficulty starting followed by "Service Stabilitrack" and the tach not working. After a cool down it would go away for a couple months. Just replaced roller rockers and was running fine for about 40 miles. Then the demon set in. Codes as follows: -V2100 ABS CAN BUS COMMUNICATION -ABS CONTROL MODULE POWER CIRCUIT -P0300 ENGINE RANDOM MULITPLE MISFIRE -P0324 ENGINE KNOCK CONTROL SYSTEM MALFUNCTION -P0336 ENGINE CRANKSHAFT POSITION SENSOR A CIRCUIT RANGE PERFORMANCE -P0307 MOD CYLINDER 7 MISFIRE Tire pressure light, stabilitrac light, traction control light, came on and off intermittently.Engine light came on, sometimes blinking, sometimes steady. Oil pressure and voltage are fine. I did find out that if I drive exactly 36mph, the speedo needle covers the check engine light so I don't have to look at it.

04-28-2015, 08:47 AM	#3
goldcoastmat Drives: 2013 2SS/RS convertable Join Date: Aug 2014 Location: Florida, United States Posts: 153 View My Garage	I've had similar issues twice.. The first time it was a speed sensor. (lights only, lost ABS, stabilitrak, power steering, and traction control) Second time it was the ground wire for the coil packs. (lost all of the above and caused a misfire) Problem with the CANBUS system on these cars is they are all interconnected, one sensor, one ground wire, one almost anything along the system and everything lights up like a Christmas tree. __________________ 2013 2SS/RS Vert Mods list to long to fit in sig now lol Check build thread http://www.camaro5.com/forums/showthread.php?t=377507

04-28-2015, 08:27 AM	#2
byrdman73 Drives: 2010 Camaro 2SS/RS Join Date: Aug 2013 Location: Willow Spring, NC Posts: 6	I think I missed one crucial bit of information... 2010 Camaro 2SS/RS. Headers, exhaust, supercharger cam.

04-29-2015, 10:09 PM	#4
byrdman73 Drives: 2010 Camaro 2SS/RS Join Date: Aug 2013 Location: Willow Spring, NC Posts: 6	Update: I'm in the process if finding out what isn't the problem. I cleared the codes and the only code that has reoccurred is P0307 (cylinder 7 misfire). I very recently replaced the roller bearings on the rockers. Pulled left valve cover, All on the left bank are in place and torqued right. Switched coil packs between 1 and 7. Cleared codes. P0307 reoccurred. Tomorrow, spark plugs and compression check. "Service Stabilitrack" and associated lights are still intermittently on.

04-30-2015, 11:22 PM	#5
byrdman73 Drives: 2010 Camaro 2SS/RS Join Date: Aug 2013 Location: Willow Spring, NC Posts: 6	Update: Found it. 180+ psi on 1,3,&5. Zero on #7. On closer inspection, broken valve spring on #7 exhaust valve.