cam swap throwing cam position sensor code - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

eLeSthree · 01-21-2017, 10:24 AM

What was the resolution on this p0340 code. I just installed a new cam and springs and threw this immediately.

I pulled the sensor from the timing cover, ohmed it out good. Nothing was making contact. car drives fine. no long starts.

Should I just tune this code out so it never comes back?

LSX Camaro · 01-21-2017, 11:09 AM

I have seen several times where the bolts come loose on the cam sprocket.

Anytime components are replaced a "Crankshaft Variation Learn" procedure is recommended.

eLeSthree · 01-21-2017, 11:27 AM

Quote:

Originally Posted by LSX Camaro

I have seen several times where the bolts come loose on the cam sprocket.

Anytime components are replaced a "Crankshaft Variation Learn" procedure is recommended.

Highly doubtful they backed out after 30 seconds of driving. if that were the case, i might have seen signs of damage on the crank pos sensor.

Ill see if a relearn can be done with hpt.

LSX Camaro · 01-21-2017, 11:48 AM

The bolts could back out and would not contact the cam position sensor. Maybe the timing chain is off a tooth.

eLeSthree · 01-21-2017, 04:43 PM

Quote:

Originally Posted by LSX Camaro

The bolts could back out and would not contact the cam position sensor. Maybe the timing chain is off a tooth.

Thats true, but the gear could hit it, but i can tell you that is not my issue. I just beat the snot out of this thing, there is nothing mechanically wrong. It runs great, pulls hard. I just tried a case relearn, but its still there.

I'm gonna tune it out.

christianchevell · 01-22-2017, 09:29 AM

Also you want to check the electrical connection at the harness that has been the problem for some...

eLeSthree · 01-23-2017, 06:14 AM

Quote:

Originally Posted by eLeSthree

Thats true, but the gear could hit it, but i can tell you that is not my issue. I just beat the snot out of this thing, there is nothing mechanically wrong. It runs great, pulls hard. I just tried a case relearn, but its still there.

I'm gonna tune it out.

In the end I resolved the issue by performing a "Crank Relearn" using HP Tuners.
It is found in the VCM scanner speacial features tab.

The code is no longer generated at startup.

SRB · 12-10-2023, 10:29 PM

I know this is an old thread but here goes anyway... is there a manual relearn procedure? I just totally rebuilt a 2013 LS3 and it runs fine for about 5 miles and starts skipping/misfiring. compression fine, injectors fine, coil pack fine, all plugs are firing, so I think it's the cam sensor.

01-21-2017, 11:09 AM	#16
LSX Camaro Master ASE, GM, LSX Tech. Drives: 2010 Camaro SS Join Date: Oct 2012 Location: Austin, TX Posts: 1,034	I have seen several times where the bolts come loose on the cam sprocket. Anytime components are replaced a "Crankshaft Variation Learn" procedure is recommended. __________________ 2010 2SSRS A6, Custom Pat G. Cam, WCCH Cylinder Heads, Kooks Headers/Exhaust, BTR Valvetrain, Fluidampr 25% UDP, All Engine ARP bolts, Flex-a-lite radiator/Trans cooler, Yank converter, PFADT Suspension, ADM Race Intake/Scoop, Torq tow hook, CFD auto shifter, Dynojet AFR gauge, Aeroforce scan gauge, Brake Performance rotors/pads Prothane bushings, ZL1 wheels, spoiler, Z/28 wickerbill, 1LE Aero/Suspension Package, Anderson Composites COPO Carbon Fiber Hood, LED lighting, Elite Catch Can, Improved Racing oil pan baffle, crank scraper, windage tray 480 RWHP 452 RWTQ + Nitrous Express 150 Shot

01-21-2017, 11:48 AM	#18
LSX Camaro Master ASE, GM, LSX Tech. Drives: 2010 Camaro SS Join Date: Oct 2012 Location: Austin, TX Posts: 1,034	The bolts could back out and would not contact the cam position sensor. Maybe the timing chain is off a tooth. __________________ 2010 2SSRS A6, Custom Pat G. Cam, WCCH Cylinder Heads, Kooks Headers/Exhaust, BTR Valvetrain, Fluidampr 25% UDP, All Engine ARP bolts, Flex-a-lite radiator/Trans cooler, Yank converter, PFADT Suspension, ADM Race Intake/Scoop, Torq tow hook, CFD auto shifter, Dynojet AFR gauge, Aeroforce scan gauge, Brake Performance rotors/pads Prothane bushings, ZL1 wheels, spoiler, Z/28 wickerbill, 1LE Aero/Suspension Package, Anderson Composites COPO Carbon Fiber Hood, LED lighting, Elite Catch Can, Improved Racing oil pan baffle, crank scraper, windage tray 480 RWHP 452 RWTQ + Nitrous Express 150 Shot

01-22-2017, 09:29 AM	#20
christianchevell old school chevy rodder Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012 Location: Oregon Posts: 5,587 View My Garage	Also you want to check the electrical connection at the harness that has been the problem for some... __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop

01-21-2017, 10:24 AM	#15
eLeSthree Drives: 2011 Camaro SS 6sp Join Date: Nov 2016 Location: Drivers Seat Posts: 1,905	What was the resolution on this p0340 code. I just installed a new cam and springs and threw this immediately. I pulled the sensor from the timing cover, ohmed it out good. Nothing was making contact. car drives fine. no long starts. Should I just tune this code out so it never comes back?

12-10-2023, 10:29 PM	#22
SRB Drives: 2013 Camaro SS Join Date: Nov 2023 Location: Florida Posts: 4	I know this is an old thread but here goes anyway... is there a manual relearn procedure? I just totally rebuilt a 2013 LS3 and it runs fine for about 5 miles and starts skipping/misfiring. compression fine, injectors fine, coil pack fine, all plugs are firing, so I think it's the cam sensor.