Rear 02 sensors won't turn off......help
04-18-2010, 05:16 PM
#1
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Rear 02 sensors won't turn off......help My tuner has done great job with tuning my V with headers and CAI. I'm really happy with the way the car is running. The problem is he's not an LS guy, but rather a german car specialist and a few Cobras. We can't get the MIL light to go off for the rear 02 sensors. Since the free flow cats were mounted, the ECU thinks there is an efficiency problem. Everyone with headers and free flow cats gets this code. We've turned off the lines that analyse the rear 02 sensor readings and the lines that set the MIL light (4 all together). We thought we really had it this time. A day later that bitch came back yet again. This is about the third time we've been F!in with this thing. I've scanned it and erased it, hoping by some act of God it will not come back. I can't renew my plates pending an emmission test. Any LS tuner guys that can think what we're missing to get these rear 02 sensors off and no MIL light?
04-18-2010, 07:32 PM
#4
For an LS6 uncheck SES enable and set all of them to No Error Reported:
* P0054
* P0060
* P0137
* P0138
* P0140
* P0141
* P0157
* P0158
* P0160
* P0161
* P0420
* P0430
* P2A01
* P2A04
That will keep your CEL off and you will pass OBD2 emissions.
* P0054
* P0060
* P0137
* P0138
* P0140
* P0141
* P0157
* P0158
* P0160
* P0161
* P0420
* P0430
* P2A01
* P2A04
That will keep your CEL off and you will pass OBD2 emissions.
05-31-2011, 03:10 PM
#6
Ok, I dont understand this...
'Im good at cobras' but not at GM (roll the eyes)... its all applicable... thats like saying, Oh the cobra has a throttle, Oh my, GM, gee what are ETC throttles?, im lost now...
in the tune, as Skull Mentioned, there is a CHECK BOX if you want the SES (Service engine Soon) light to come on or not... Not rocket science... under diagnostics >> DTC's and change to trigger 3- No error reported, so it never cares what the rear o2s are doing, or unplugged...
Clearing the light with a scanner is useless if the problem is still there, which it is, you need to tell the ECM, hey, quit looking at this.
How do these guys get paid? like man... simple simple...::
'Im good at cobras' but not at GM (roll the eyes)... its all applicable... thats like saying, Oh the cobra has a throttle, Oh my, GM, gee what are ETC throttles?, im lost now...
in the tune, as Skull Mentioned, there is a CHECK BOX if you want the SES (Service engine Soon) light to come on or not... Not rocket science... under diagnostics >> DTC's and change to trigger 3- No error reported, so it never cares what the rear o2s are doing, or unplugged...
Clearing the light with a scanner is useless if the problem is still there, which it is, you need to tell the ECM, hey, quit looking at this.
How do these guys get paid? like man... simple simple...::
Last edited by vmapper; 05-31-2011 at 03:16 PM.
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06-01-2011, 08:04 AM
#8
He said they can turn the code off but I just got my car tuned there.
The rate on the Dyno tune was $450 but they may turn the code off for cheaper.
ARD
5023 Addicks Satsuma Road # B
Houston, TX 77084
(832) 593-9140
09-17-2013, 03:49 PM
#10
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Do this. He probably missed some of those codes. If he's not familiar with HP tuners then it easy to forget to turn off ALL the rear o2 sensor codes. I had the same battle when I first got HP tuners.
09-17-2013, 04:12 PM
#11
Yeah, I talked to him and he said he must have missed those codes.
I was the first vehicle for him to tune with his new OS and Hardware and he was struggling a bit with the files. The tuning was great.
No worries as they were great to work with and very approachable and customer service oriented.
I was the first vehicle for him to tune with his new OS and Hardware and he was struggling a bit with the files. The tuning was great.
No worries as they were great to work with and very approachable and customer service oriented.
09-17-2013, 04:58 PM
#12
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Yeah, I talked to him and he said he must have missed those codes.
I was the first vehicle for him to tune with his new OS and Hardware and he was struggling a bit with the files. The tuning was great.
No worries as they were great to work with and very approachable and customer service oriented.
I was the first vehicle for him to tune with his new OS and Hardware and he was struggling a bit with the files. The tuning was great.
No worries as they were great to work with and very approachable and customer service oriented.
09-17-2013, 10:14 PM
#13
I know.
He was not new to the software; he GOT new software, but he knew it backwards and forwards. It was the Windows OS he was having issues with. Sorry for not being clear.
Great guy!
Probably going to take it back and see if the headers, plugs, wires and motor mounts helped it pick up any power....
He was not new to the software; he GOT new software, but he knew it backwards and forwards. It was the Windows OS he was having issues with. Sorry for not being clear.
Great guy!
Probably going to take it back and see if the headers, plugs, wires and motor mounts helped it pick up any power....
09-17-2013, 10:15 PM
#14
I know.
He was not new to the software; he GOT new software, but he knew it backwards and forwards. It was the Windows OS he was having issues with. Sorry for not being clear.
Great guy!
Probably going to take it back and see if the headers, plugs, wires and motor mounts helped it pick up any power....
He was not new to the software; he GOT new software, but he knew it backwards and forwards. It was the Windows OS he was having issues with. Sorry for not being clear.
Great guy!
Probably going to take it back and see if the headers, plugs, wires and motor mounts helped it pick up any power....
