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| reply to jgkolt
Re: [Help] 1999 Lexus ES300 "vsc activity light" and "vsc off" l
It appears that Bosch specifies that as a wideband type sensor.
Theoretically, it should work.
They are a step more precise than conventional o2 sensors, so hopefully the vehicle can handle the non-OE part.
You need to find either of the connectors shown in the previous post and connect the indicated terminals. Then count the flashes of the VSC light.
DLC1 is located under the hood.
DLC2 is located above your ankles (above the pedals).
As for the lean condition, I am afraid the next step isn't that easy.
You need to check some of the live data values in the engine control computer while the engine is running. (Short and long term fuel trim values) If they are both high (say over 20%), (bank one and bank two), then it is something common to both banks that is the cause. It is a fairly good bet that your airflow meter is inaccurately measuring the amount of incoming air.
The easiest method of confirming this is to swap in a known good part and re-roadtest the car. The difference is usually readily apparent via increased power and changed data list values. There are additional tests that can be performed, but a known good part and recheck is by far the quickest and most definite method of confirmation.
Some report success using a spray cleaner to clean the airflow meter, some do not. Replacement may be necessary if that is the problem.
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Striving for Parfection. |
