Had a cracked manifold on a 2004 LC. Put on DT headers and the rest was an EMS system (cats, mid pipes, exhaust). It sounds and runs great, more power, couldn't be happier. After about 30 days the check engine and VSC lights came on. I brought it to a local shop, they flashed it and cleared the code a couple of times but it comes back on after an hour or so. Has anyone had this problem? Is there a fix? Please help. Thanks.
Please help, check engine, VSC and VSC track lights on after replacing exhaust (1 Viewer)
- Thread starter jmack
- Start date
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What is the code? Also, don't worry too much about the VSC/Trac lights until you sort the check engine light. Many times the CEL light will trigger the VSC/Trac light. When the shop cleared the code, they should have told you what it was. If you don't have a code reader, go to AutoZone and let them check it, they'll tell you what the code is and would possibly have the parts available.
For sure get the code. Any inexpensive code reader will work for getting the number and clearing it. A full set of Toyota codes are in the forum FAQs. There are, of course, possibilities for the CEL other than the exhaust, but it might be good guess that it's related to the O2 sensor(s)?
Isn't this because of the O2 sensor location?
Do a search and you will find something about it.
Do a search and you will find something about it.
I have searched. What are you referring to?
Aren't there topics relating to the O2 sensor is an incorrect location after exhaust change and then light coming on on the dash?
I might be wrong.
I might be wrong.
BadReligion
SILVER Star
To the OP: did you go with the EMS 1 cat or 2 cat system?
- Thread starter
- #11
I'm not sure. I have been trying to get in touch with EMS. They are not answering phones or e-mail. I have been working quite a bit and haven't had a chane to get the codes as previously suggested. It was working well for about a month.
You will get nowhere with EMS. They are worthless. And probably closed down.
I've installed and run the EMS on my 2000 LC and had no issues with codes related. What can easily happen is a crimp in the downstream 02 sensor wire pigtail and that may cause an intermittent reading and a code.
I have the single cat per side setup.
I have the single cat per side setup.
The trouble code is very important. I would recommend you purchase an inexpensive code reader ~$21
http://www.amazon.com/Autel-MaxiScan-MS300-Diagnostic-Vehicles/dp/B001LHVOVK
http://www.amazon.com/Autel-MaxiScan-MS300-Diagnostic-Vehicles/dp/B001LHVOVK
Buy once, cry once, and have a permanent reader in your rig with a ScanGauge
- Thread starter
- #19
The code was an oxygen sensor circuit bank 2 (p2272, p2273)
