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Discussion Starter · #1 ·
I just installed Lg long tube with the off road xpipe. i bought the 02sims and after the install it ran fine no codes till about 12 miles later. It started to sputter and doesnt want to run when im just cruisin. It runs pretty good at WOT. I checked the codes and it came up with these three. Im not sure what they are. Can anyone shed some light one the problem? The codes are Po 300h, P1133 HC, and P1153 HC.
Thanks.
Dan
 

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Sound like a classic case of crossed O2's :eek:o:
 

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The 02 sims go in the rear position. Its easy to cross the front 02s because the installed sensors cross each other up toward the tunnel. You want to follow the wires: left to left, and right to right. There are also grounding cables on each side that can be checked.
 

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From LG's instructions

O2 sensors:
This is very important. When you remove your old headers, you will remove all four 02 sensors. Set the old front sensors aside and do not use them, the wires are too short
Install the 02 simulators and plug them into the car harness, where the rear 02 sensors were attached to the wiring harness. The car harness has a square plug and so does the 02 simulator.
Next, take the original REAR 02 Sensors, and plug the LGM adapter into them. That will give you a long wire, with the LGM adapter which will allow this 02 sensor to be used as your main front 02sensor. Install the long 02 sensors in the collectors of the new LG headers, and make sure to route them away from any hot tubes. You must install the 02 wires one side at a time to not mix them up. The sensor on the right header (collector) gets plugged into the right side (Passenger side) and the one on the left collector gets routed to the left side plug in the car harness.
It is important that the 02 sensors go to the correct side of the car. If the 02 sensors are not hooked up correctly, the car will not idle correctly. This should be the first thing you check if a problem arises after the install. Just hook the driver’s side 02 to the driver’s side wiring harness, and do the same on the passenger side. Our 02 sensors angle across and can easily be confused. We drill a 1” hole in the upper heat shield to help route the wires, but this is not mandatory. But extra care must be taken to avoid the hot pipes so not to melt the wires.
http://www.z06vette.com/forums/showthread.php?t=43390&highlight=crossed+02's+sensors
 

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bobby778 said:
The General always says "Leave well enough alone". :cool:

God, what planet are you from?? :lol:
 

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Discussion Starter · #10 ·
Switched the 02 sensors around and she hasnt missed a beat since. Thanks everyone who posted and helped.
 
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