i have a 01 5.3 and bank 1 sensor 1 and bank 2 sensor 1 Insufficient switching for both and i have lt's on it and the codes are 1133 and 1153 what can i do to fix this?

 

When I looked up those codes, 1133 is Heated O2 sensor insufficient switching, and 1153 is bank 2 fuel control shifted lean, so the first code may be related to the second, and the problem may be just related to bank 2. I'd switch the O2 sensors side to side, and see if you get ta lean code for bank 1. If you do, the O2 sensor is at fault and needs to be replaced. If the codes stay the same, you either have a lean problem on the right side (bank 2), or unmetered air entering on bank 2. If you just did the LT's and this happened, I'd check for exhaust leaks on that header, or a leak right at the O2 sensor, that's causing air to enter that bank and fool the sensor.

I'm going to move this thread to the GM Engine and Exhaust Performance section since this isn't an internal engine modification If your truck isn't a GM, let us know and we'll move it to the appropriate section

 

i had the lts on for a few months now and the code did switch and i changed it and they keep coing back i read to put rear vette ones in but i didnt know if that would change anything?

 

The LT's usually give O2 sensor heater insufficient codes, not lean codes, so I doubt that installing Corvette O2's would help. Check for exhaust leaks on that header that's allowing unmetered air to enter the exhaust stream.

You said that you switched the O2 and the code did switch...do you mean that you put the O2 on the left bank, then got a code for bank 1? Should be cut and dry that the sensor is at fault then? So you put a new sensor in and got the same codes?

 

theres no leaks that i can find and ya i got the same codes and the 1153 is usually the one that comes on the 1133 comes on every once in awhile

 

Did the codes appear immediately after the header install? Not sure, but I don't see how a set of headers would relate to a lean code, unless there's a leak somewhere. Do you have a scan tool where you can monitor O2 sensor activity? From what you're saying, it sounds like you may have an actual lean condition on bank 2...

 

i had it on there b4 from my freinds shop and the o2 didnt do much on the scan tool and it starting happening i think after my freind put the hp tuner in but then we took it out and it still does it

 

and my buddy has the same problem we installed his headers stock tune and he has the 1153 and he has obx lt i have pacesetter lt

 

i just i got a could saying i was to rich once about month or 2 back but it never came back..

 

That's interesting, my best guess would be that the tune needs to be adjusted then...also, check and make sure that no air is entering at the bung where the sensor screws in...