Cam sensor problem
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Joined: Jan 2014
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Cam sensor problem
I have a 07 ls2. I did a tsp 239 cam with ls3 heads and long tubes with off-road exhaust. I also have a mail order tune from Texas speed. My car take longer to crank and gives a code referring to the cam sensor. It also give a lean code on both banks. I have not taken the car past 4000 rpm. Where should I start on these codes. Thanks.
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I have a 07 ls2. I did a tsp 239 cam with ls3 heads and long tubes with off-road exhaust. I also have a mail order tune from Texas speed. My car take longer to crank and gives a code referring to the cam sensor. It also give a lean code on both banks. I have not taken the car past 4000 rpm. Where should I start on these codes. Thanks.
Melting Slicks
Joined: Feb 2004
Posts: 3,307
Likes: 111
From: Tucson AZ
Start by clearing the codes and then disconnecting and reconnecting the cam sensor. If the codes continue then install a new sensor.
You should also contact Texas Speed for their recommendations.
You should also contact Texas Speed for their recommendations.
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Joined: Oct 2014
Posts: 86
Likes: 1
From: Pinellas Park Florida
Did this happen immediately following the install? If so maybe something was left disconnected. The long crank is the PCM trying to determine where TDC is. Without CMP it just kind of guesses until it gets it right. Which usually means a longer crank than usual. I would double check the connector at the CMP and at the jumper harness first. What is the actual Code? The cam could also be installed out of time especially with the lean codes. I am not familiar with this cam or its install so I am not sure how likely this is. Knowing the actual DTC could help distinguish between a circuit issue and a timing issue.
Drifting
Joined: Jun 2006
Posts: 1,295
Likes: 18
From: Chicago Illinois
St. Jude Donor '12
Russell Boulding, is right, the long crank is the computer taking longer to figure out where TDC is. A learn procedure should not be needed for a cam sensor (for a crank sensor the learn procedure w/ a Tech 2 would have to be performed). Does your car do a long crank every start-up? It should only need to do it once. How about disconnecting the batter for ten minutes and then reconnecting?
The cam sensor and the bracket / harness are difficult to reach. Did you re-use the original cam sensor? Could it have been damaged on reinstall. Can you reach the connections for the sensor to the harness and then from the other end of the harness to the engine's wire harness?
The cam sensor and the bracket / harness are difficult to reach. Did you re-use the original cam sensor? Could it have been damaged on reinstall. Can you reach the connections for the sensor to the harness and then from the other end of the harness to the engine's wire harness?
