DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

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kbr577
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DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by kbr577 » Fri Jun 22, 2018 9:23 am

Bought a innovate DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge, the sensors keep going bad, the single afr gauge I had in before the Innovate never went through sensors, anyone run into this? trying to get through to them on the phone but no luck.

slo-svt
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Re: DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by slo-svt » Fri Jun 22, 2018 11:29 pm

Sensor life is very dependent on fuel type. Leaded fuels eat up the bosch sensors really fast (I killed one in less than 100 miles on my NA street car) . Without knowing what your previous wideband was I would guess it had an NTK sensor. They are much more durable in all conditions ESPECIALLY when using leaded fuel.

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Re: DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by joe 90 » Sat Jun 23, 2018 2:16 am

They get killed by oil too.

peejay
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Re: DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by peejay » Sat Jun 23, 2018 5:31 am

You MUST have the sensor mounted at least two feet from the exhaust ports.

kbr577
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Re: DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by kbr577 » Mon Jun 25, 2018 10:26 am

I had an AEM, and there mounted in the right location. Thanks!!

mfdcar51
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Re: DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by mfdcar51 » Mon Jun 25, 2018 8:03 pm

I have the same problem with an LM-2, have a old LM -1 no problem ever, I think their new stuff is junk. Both units use bosch sensors

kbr577
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Re: DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by kbr577 » Mon Jun 25, 2018 8:58 pm

I did get ahold of them, said they never heard of the problem, go figure.

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Re: DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by emsvitil » Mon Jun 25, 2018 9:08 pm

Don't turn the sensor heater on before you start the engine.

Something about the hot heated sensor getting hit with some unburned (cold) fuel can break the sensor.

They're also supposed to be mounted on the top half of the pipe (same reasoning as above).
Ed

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Re: DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by joe 90 » Tue Jun 26, 2018 12:21 am

emsvitil wrote:
Mon Jun 25, 2018 9:08 pm
Don't turn the sensor heater on before you start the engine.

Something about the hot heated sensor getting hit with some unburned (cold) fuel can break the sensor.

They're also supposed to be mounted on the top half of the pipe (same reasoning as above).
Internet myths?

Wrong way round?

Isn't it that you're not supposed to have the sensor fitted if it's not powered up?


From here.
https://wbo2.com/lsu/LsuInstal.pdf

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Re: DLG-1: Dual Lambda (Air/Fuel Ratio) Gauge

Post by peejay » Tue Jun 26, 2018 4:35 am

"Powered up" does not mean "hot". Knowing a little about how wideband O2s work, I am assuming that the sensors die if they are run without a controller to pull electrons from the sensor's test cell, since it is isolated, unlike a narrowband sensor. Those electrons WILL find a way out sooner or later, and when they make their own path, dead sensor.

I have noticed that the 4.9 sensors seem to be slower in response than the 4.2 sensors. Makes me really appreciate my LC-1, which the Internet will tell you is a horrible device that breaks all the time, but it's been good to me for many years.

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