Heads/cam dynotune question Just installed my 799 heads on the ws6. Headers and gm hotcam. Runs a lil rough. But im not sure if my o2s are working very well or at all. I had to rewire them to the new o2s for the headers. When i go in for a dyno tune, will they still be able to tune it correctly? |
If the O2's are working there should be no issues |
:huh:
Originally Posted by HCI2000SS
(Post 19388654)
If the O2's are working there should be no issues |
https://cimg3.ibsrv.net/gimg/ls1tech...01f60e15ff.jpg I used the top diagram to rewire it. So when i go for a tune, they will just tune out the rears? |
The rears will not effect the tune. Most are tuned out but if you have cats, it is sometimes possible to leave the rears with no SEL. There are many questions that come into play when you are talking about front 02's. They can be bad or things such as vacuum leaks, stuck injectors, etc. that can make them appear bad. In this instance you may want to check out all you can before your journey or set it up for your tuner to repair if needed. Some longer tail corvette 02's may be your best bet. |
Originally Posted by codyvette
(Post 19388930)
The rears will not effect the tune. Most are tuned out but if you have cats, it is sometimes possible to leave the rears with no SEL. There are many questions that come into play when you are talking about front 02's. They can be bad or things such as vacuum leaks, stuck injectors, etc. that can make them appear bad. In this instance you may want to check out all you can before your journey or set it up for your tuner to repair if needed. Some longer tail corvette 02's may be your best bet. |
https://cimg2.ibsrv.net/gimg/ls1tech...77612485fd.jpg So...seems that my bank 2, 1st sensor isnt even plugged in or wired correctly? Picture is while idling |
It could be from several things. I would turn the key on and get under there with a meter and check for 5v reference on both of the front O2's. You can also check for the 12v heater circuit. They will be hot to the touch if the heater is working. |
Originally Posted by codyvette
(Post 19389974)
It could be from several things. I would turn the key on and get under there with a meter and check for 5v reference on both of the front O2's. You can also check for the 12v heater circuit. They will be hot to the touch if the heater is working. looks kind of like I plugged the 'second bank, first sensor', into the second o2 harness lol |
rewired my o2s and got a reading from .100-.900 on bank 1 sensor 1, and bank 2 sensor 1 since the rears are unplugged because of cats being off, they read at .450 is that a normal thing for it to read? |
Why don't you call your tuner? Everything should be tuned using a wideband. If it isn't, get a new tuner.The tuner might need to make some changes to o2 settings to make closed loop function properly. That's all they should be doing with the stock o2s. |
Originally Posted by eaglegoat
(Post 19391240)
Why don't you call your tuner? Everything should be tuned using a wideband. If it isn't, get a new tuner.The tuner might need to make some changes to o2 settings to make closed loop function properly. That's all they should be doing with the stock o2s. |
Originally Posted by fbody4everyone
(Post 19392214)
I was just seeing if it was normal for unplugged o2 sensor to be sitting at .450 |
Originally Posted by fbody4everyone
(Post 19388645)
Just installed my 799 heads on the ws6. Headers and gm hotcam. Runs a lil rough. But im not sure if my o2s are working very well or at all. I had to rewire them to the new o2s for the headers. When i go in for a dyno tune, will they still be able to tune it correctly? |
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