Mailing List flyrotary@lancaironline.net Message #67464
From: Finn Lassen finn.lassen@verizon.net <flyrotary@lancaironline.net>
Subject: Bosch LSU 4.9 oxygen sensor
Date: Fri, 14 Jul 2023 13:58:54 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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I now have about 100 engine hours on my Bosch LSU 4.9 wide band oxygen sensor with the Ecotron ALM-Board (0-5V output).

Recently I've seen the output intermittently  drop to 0 volts. So I replaced the sensor with one I bought on eBay a couple if years ago. (0258017025 WideBand O2 Oxygen Lambda Sensor LSU 4.9 for PLX UEGO AEM 30-2004 New).

Well, that doesn't work at all. The ALM-Board outputs zero volts all the time.

Anyone have experience with the Bosch LSU 4.9 oxygen sensor?

Are there versions with different pin-outs but same part number (0258017025)?

Finn
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