Check engine light after LT headers
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,322
Likes: 2
From: New York NY
Cruise-In VI Veteran
St. Jude Donor '05
Check engine light after LT headers
Just had a set of dynatechs with cats installed last weekend. Started the car today for the first time since then and the "check" warning light comes on. All temps are normal, no loss of power, oil level is fine, no noticible problems whatsoever besides this light. Checked the DIC stored codes and the only applicable code was P0141 -> relating to heated oxygen sensor. I am going for a tune in two days. Is there something to worry about or does the car just need to be tuned? Any suggestions or similar experiences? thanks
Brian
Brian
Melting Slicks
Joined: Mar 2003
Posts: 2,744
Likes: 9
From: FL
Cruise-In VI Veteran
Tuning should fix your issue... Has to do with the sensor being farther down the header than it was in the stock configuration. Wont affect the way it runs.
I deleted the code on my car. Used to get the same code on my SS Camaro til I tuned it.
I deleted the code on my car. Used to get the same code on my SS Camaro til I tuned it.
Drifting
Joined: Dec 2003
Posts: 1,586
Likes: 72
From: Upstate NY
Originally Posted by canadianguy
I had a similar problem, I suggest clearing the codes and see if they come back. I did, and mine did not.
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,322
Likes: 2
From: New York NY
Cruise-In VI Veteran
St. Jude Donor '05
Thanks for the replies everyone. I am going to clear the codes and hopefully that will resolve the issue. By the way, I did notice my tailpipes looking excessively dirty. 
Pro
Joined: Jan 2004
Posts: 504
Likes: 0
From: Monroe LA
Same Problem here. I have turned off the code, Replaced the O2 sensor with a back o2 sensor because it gets hotter quicker. Here is a great site for diagnosising any problem.
http://www.gearchatter.com
The car will run rich.....but the power is great!
http://www.gearchatter.com
The car will run rich.....but the power is great!
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Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,322
Likes: 2
From: New York NY
Cruise-In VI Veteran
St. Jude Donor '05
Originally Posted by My C5
Same Problem here. I have turned off the code, Replaced the O2 sensor with a back o2 sensor because it gets hotter quicker. Here is a great site for diagnosising any problem.
http://www.gearchatter.com
The car will run rich.....but the power is great!
http://www.gearchatter.com
The car will run rich.....but the power is great!
Melting Slicks
Joined: May 2003
Posts: 2,851
Likes: 1
From: San Bruno Ca
Check for the simple things first. If the 02 sensors wires were removed
during the "cat" install, or the 02 sensors removed without disconnecting the wires at the plugs, then it could be a broken wire issue. I've seen this happen a few times. LTs have been known to throw codes without a re-tune.
during the "cat" install, or the 02 sensors removed without disconnecting the wires at the plugs, then it could be a broken wire issue. I've seen this happen a few times. LTs have been known to throw codes without a re-tune.
