Why is my fuel system too lean Bank 1?

Why is my fuel system too lean Bank 1?

According to the Manufacture, here are the possible causes for this code. The customers concern is the check engine light on with a Diagnostic trouble code stored in the computer of P0171 indicating the fuel trims are too high and the engine is running lean.

What is the voltage of the air sensor on a Camry?

Vehicle: 2000 Toyota Camry, 4 cylinder, 2.2L, California emission. The voltage on my upstream Air/Fuel sensor is 3.3V (I replaced it about a week ago) and it appears to be working properly.

Why does my Toyota Camry have a lean p0171 code?

Toyota issued a Technical Service Bulletin (TSB) EG041-07 related to this concern. This TSB talkes about the ECM constantly grounding the purge solenoid which may cause this Lean P0171 code. Based on my experience, if this was the case, it will also flag large and small Evaporative Emission codes.

What kind of fuse box does a Toyota Camry have?

Gauge and meter, SRS airbag system, Multiport fuel injection system/sequential multiport fuel injection system, “IGN” and “ST” fuses

What kind of fault code does p0171 lean mean?

P0171 Lean is a very common fault code on Toyota’s. In this article I am going to be discussing the 1.8, 2.4 4 cylinder engines in the Toyota Corolla, Camry, Rav4 and Matrix along with the V6 3.5 liter engine used in the Camry, Avalon, Solara and Sienna van.

Why is my Toyota p0171 running lean at idle?

I reset the ECU, but the CEL came back shortly. I then took it back to the dealer who did the transmission work, who said that it is running lean, but only at idle, and that the O2 sensors and MAFS are fine. They think it’s an “intake leak”, but want to keep it for a day or more to diagnose.

Why did my ECL go off after 200 miles?

The ECL was on on rmonth ago. The Smog check failed becasue of this. the error code was p1133. I continue driving it and the light went off after 200 miles. I knwo the computer in the car has a buffer to rememebr everyhting, so I kept driving for another 2 weeks to make sure the old record got overwritten.