Good advise..
Help: P0340 CEL code
Thread Starter
Pro
Joined: Mar 2012
Posts: 572
Likes: 2
From: Carol Stream IL
Help: P0340 CEL code
I was tracking my car (05 C6 base) a week ago and the Check Engine Light came. I did 3 more sessions that day and then drove 1.5 hours back home. The whole time the engine ran great with no issues. Today I had an auto parts store pull the code and it came up P0340 Camshaft Position Sensir A Circuit (Bank 1 or Single sensor). What does it mean and how can I clear it ?
Race Director
Joined: Sep 2009
Posts: 11,338
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From: Eastern
I was tracking my car (05 C6 base) a week ago and the Check Engine Light came. I did 3 more sessions that day and then drove 1.5 hours back home. The whole time the engine ran great with no issues. Today I had an auto parts store pull the code and it came up P0340 Camshaft Position Sensir A Circuit (Bank 1 or Single sensor). What does it mean and how can I clear it ?
I replaced it, then all issues went away including the CEL
Last edited by 4SUMERZ; Nov 5, 2016 at 05:37 PM.
Safety Car
Joined: Jul 2009
Posts: 3,755
Likes: 190
From: Baton Rouge LA
St. Jude Donor '14, '16
Are you hearing any tapping or strange sounds from the top of the motor? When you pull the sensor check for physical damage that would indicate a cam bolt backing out. Not unheard of even on stock ls2s.
Melting Slicks
Joined: Dec 2013
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From: Bridgewater New Jersey
Thread Starter
Pro
Joined: Mar 2012
Posts: 572
Likes: 2
From: Carol Stream IL
The Check Engine Light went off after a few start/stop cycles so I'm not going to worry about right now as car is being stored for winter.
My LS2 is not stock. Speed Inc replaced the cam and all valve train in the spring of this year.
I was going to say that ther car isn't making any strange noises but it did start making an unusual noise about 1 week before the check engine light came on. The noise only happens when making a left turn at moderate to high speeds and sounds more like an exhaust leak. I initially thought it was from running new 265/40-19 Michelin PSS tires that are over sized on 2008 split spoke wheels. That noise when away when I was tracking the car 1 week later.
The westher is still nice yoday today so I'll take if for a drive and see if any more clues surface.
My LS2 is not stock. Speed Inc replaced the cam and all valve train in the spring of this year.
I was going to say that ther car isn't making any strange noises but it did start making an unusual noise about 1 week before the check engine light came on. The noise only happens when making a left turn at moderate to high speeds and sounds more like an exhaust leak. I initially thought it was from running new 265/40-19 Michelin PSS tires that are over sized on 2008 split spoke wheels. That noise when away when I was tracking the car 1 week later.
The westher is still nice yoday today so I'll take if for a drive and see if any more clues surface.
Thread Starter
Pro
Joined: Mar 2012
Posts: 572
Likes: 2
From: Carol Stream IL
The Check Engine Light went off after a few start/stop cycles so I'm not going to worry about right now as car is being stored for winter.
My LS2 is not stock. Speed Inc replaced the cam and all valve train in the spring of this year.
I was going to say that ther car isn't making any strange noises but it did start making an unusual noise about 1 week before the check engine light came on. The noise only happens when making a left turn at moderate to high speeds and sounds more like an exhaust leak. I initially thought it was from running new 265/40-19 Michelin PSS tires that are over sized on 2008 split spoke wheels. That noise when away when I was tracking the car 1 week later.
The westher is still nice yoday today so I'll take if for a drive and see if any more clues surface.
My LS2 is not stock. Speed Inc replaced the cam and all valve train in the spring of this year.
I was going to say that ther car isn't making any strange noises but it did start making an unusual noise about 1 week before the check engine light came on. The noise only happens when making a left turn at moderate to high speeds and sounds more like an exhaust leak. I initially thought it was from running new 265/40-19 Michelin PSS tires that are over sized on 2008 split spoke wheels. That noise when away when I was tracking the car 1 week later.
The westher is still nice yoday today so I'll take if for a drive and see if any more clues surface.
Thread Starter
Pro
Joined: Mar 2012
Posts: 572
Likes: 2
From: Carol Stream IL
I was tracking my car (05 C6 base) a week ago and the Check Engine Light came. I did 3 more sessions that day and then drove 1.5 hours back home. The whole time the engine ran great with no issues. Today I had an auto parts store pull the code and it came up P0340 Camshaft Position Sensir A Circuit (Bank 1 or Single sensor). What does it mean and how can I clear it ?
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