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Author Topic: lambda sensor die after 10 sec  (Read 6935 times)

Offline wwc_gang

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lambda sensor die after 10 sec
« on: January 04, 2016, 03:59:46 pm »
hi guys i have original bosh lsu 4.9 lambda sensor . im calibrating it (164) and then  it works fine till i switch engine of. then  when im starting engine it works for about 10 sec and dies. any one know what cause this problem ??? have another brand new lambda but for some reason i cant calibrate it. it says increase value but value was set at (255).
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Offline wwc_gang

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Re: lambda sensor die after 10 sec
« Reply #1 on: January 04, 2016, 07:30:41 pm »
any one can help me with that???
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Offline gunni

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Re: lambda sensor die after 10 sec
« Reply #2 on: January 04, 2016, 11:13:14 pm »
triple check your wiring, make sure its warming up and report back.

Its not very common for wideband not to work when in calibration mode
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Offline wwc_gang

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Re: lambda sensor die after 10 sec
« Reply #3 on: January 05, 2016, 02:00:35 pm »
checked wiring many times.and yes it gets very hot cant touch front of the lambda sensor.
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Offline wwc_gang

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Re: lambda sensor die after 10 sec
« Reply #4 on: January 05, 2016, 02:03:13 pm »
how can i add log here?? so you can see how lambda works and later dies
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Offline Manick

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Re: lambda sensor die after 10 sec
« Reply #5 on: January 05, 2016, 04:58:11 pm »
Quote from: wwc_gang on January 05, 2016, 02:03:13 pm
how can i add log here?? so you can see how lambda works and later dies

I have seen similar behaviour with narrowbands before, turned out to be the probe that was broken.
Double check your ground to the wbl again, poor ground to the lambda probes can give all kinds of strange problems.
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Offline wwc_gang

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Re: lambda sensor die after 10 sec
« Reply #6 on: January 05, 2016, 06:50:53 pm »
i done one mistake b4. i connected all wires for lsu 4.2 lambda but was using 4.9 lambda. maybe i can dome some damage to vems ecu itself ???
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Offline wwc_gang

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Re: lambda sensor die after 10 sec
« Reply #7 on: January 06, 2016, 01:51:05 pm »
ok sorted it. installed 27k resistor and now it working :)
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