 Micro Squirt O2 Sensor, Picking up False Signal |
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| Mblizzard |
 Jul 30 2018, 02:59 PM
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#1
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Advanced Member  Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States  |
My O2 gauge is getting some really bad values. I have a dash mounted gauge that seems to be reading correctly but the ECU is seeing values that range from 0.4 to 22 in less than 1 second.
 In fact I disconnected the O2 gauge from the ECU and it was still getting the same signal. I even installed a new O2 sensor and got the same results. Any thoughts on solving this? |
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| jd74914 |
Jul 30 2018, 05:36 PM
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#2
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Its alive Group: Members Posts: 4,782 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
That's the oxygen sensor itself. Microsquirt cannot read the low level voltage signal or run the heater so there is a controller in the middle (innovate lc1, 14point7 spartan, etc.) that handles that stuff. I'd bet your problem is in the ground wiring of that controller. Spurious noises signals doesn't seem like an O2 sensor element problem.
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Posts in this topic
Mblizzard Micro Squirt O2 Sensor Jul 30 2018, 02:59 PM
jd74914 What brand O2 controller? Innovates especially are... Jul 30 2018, 03:19 PM
Mblizzard
What brand O2 controller? Innovates especially ar... Jul 30 2018, 04:40 PM r_towle grounds...
rich Jul 30 2018, 09:37 PM Mblizzard OK so I am no expert when it comes to chasing down... Jul 31 2018, 07:46 AM McMark Your O2 controller should NOT ground through the E... Jul 31 2018, 10:54 AM Mblizzard
Your O2 controller should NOT ground through the ... Jul 31 2018, 11:44 AM r_towle a short in the ECU or aliens Jul 31 2018, 08:37 PM McMark
a short in the ECU or aliens
Yeah, if you've... Aug 1 2018, 10:55 AM jpnovak Did you configure the microsquirt controller for a... Jul 31 2018, 09:17 PM Mblizzard
Did you configure the microsquirt controller for ... Aug 1 2018, 10:56 AM |
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