Lean Is Mean

by | Jan 28, 2010 | Import Service, Toyota | 4 comments

We often make fun of them: Techs who use the scan tool to tell them what part to replace. We must admit that sometimes, for the sake of expediency, we do the same thing. Let’s not get caught in that trap on a Toyota with a lean condition.

Please log in below to view content.
If you haven't yet, register for free access.

Related Articles

Monitoring the Problem

Every so often we run into the problem of not having a problem to solve. What do we do when we have a vehicle that is not setting codes, but it is also not running OBD II monitors. They need to run so the car can pass our state inspection program. Well, this Honda gave us plenty not to solve, so how did we do it?

Putting the Heat On ‘Em

Just because you put on a new part doesn’t mean it’s going to fix the problem. Such was the case with this Toyota Camry that had a fresh O2 sensor.


  1. abujin

    Good basic training. Would like to have known more about where he obtained readings for” known good in our locale”

  2. mastertechmag

    Thanks for your inquiry abujin. Per Kerry, our contributing editor:
    “I arrived at these numbers looking at new MAF’s that I tested after I installed it and I also tested good units that kept the fuel trim number very close to 0%. I hope that answers the question. “

Submit a Comment

Search Automotive Tech Info Content by:

Search by Publish Date