macsingh

I have the following codes reading on my OBD2 scanner as shown below.

C3201 - Not sure what it is
P0172 - System too rich
P0201 - Injector Circuit/Open Cylinder 1

VSC is displayed, traction control light is on, engine light is on

Symptoms: only thing i notice is its using alot more gas. no rough idling or hesitation.

any ideas of what it could be? a sensor? TIA



s

Mrfix

I would google the codes or maybe someone around here can look them up.

If your injector circuit is stuck open it is pouring fuel into that cylinder all the time. Hence you're using more fuel. You will ruin your oxygen sensors on that bank and also could ruin your Catalytic Convertor if you don't have this checked.

The VSC and Traction Control light is just the ECU going into safety mode and turning it off because it senses your engine in trouble.

Injectors can stick open because you could have a short in that wire (Cylinder 1). You may try to wiggle the wiring harness from that injector to see if you can move it just enough to stop the short as a temporary thing before you get it fixed. Your trouble code lights will go off if you are successful.

Get this fixed, driving it will cause some expensive repairs by ruining your O2 Sensors and eventually your Cat.

DennisMik

I did a google on C3201 and the information that came back was confusing and contradictory. Here is a link to one of them:

http://c3201-lexus.autotroublecode.com/