PUT INTAKE ON NOW LEFT BANK IS RUNNING LEAN.

 

Hello
First of all, how do you know it is running lean?

If it is a SRT system, it could be that one of the O2 wires is not properly installed or a defective ECU.

Still need a little more information though
Lee

 

How can tell if it is running lean? What is the voltage? If you access to a scanner, You will need to hook it up and watch the voltage. Also a resistance test can be done on the A/F sensor.
JPI

 

check engin lite came on. took it to auto zone for free test . sounds like i have to get it looked at by the dealership.as far as the 02 sencer it only has 60,000 miles on itso it could be it but dought it.

 

Your lexus dealership won't touch your car if it's modified. Good luck.
JPI

 

Depends on your dealership. Some will and just notate in the system that the car has been modified. Common problem that could lead to the code you came up with would be the front o2 sensor.
Lee

 

Is this true? Does that apply to exhaust and suspension?

 

Some dealership won't touch your car if it's modify. Some are very cool about it. That is why we are here. We love modify lexus.
JPI

 

garland texas u say, bomb about 30 min from the house

 

Not true. I use Sewell (or used them) and it was not a big deal. Having said that, you're "down the street" from where I live (White Rock). Check your PM when you get a moment.