STD Other Open My EGT gauge no workie.

My EGT gauge no workie.

My EGT gauge no workie.

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winmutt
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bitbanger

3,468
11-27-2012, 04:07 PM #1
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Not sure if its the gauge or the sensor. Never had my gauge setup but the sensor has been in the manifold for a while. When replacing my clutch last time, I forgot to hook up the ground strap... and the sensor sheath became the new ground. I since then checked the resistance and its neither open or closed (nominal reading). Any ideas on what else I can check or how I can test the gauge?
1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
11-27-2012, 04:07 PM #1

Not sure if its the gauge or the sensor. Never had my gauge setup but the sensor has been in the manifold for a while. When replacing my clutch last time, I forgot to hook up the ground strap... and the sensor sheath became the new ground. I since then checked the resistance and its neither open or closed (nominal reading). Any ideas on what else I can check or how I can test the gauge?

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

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300SD81
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GT2559V

187
11-27-2012, 04:14 PM #2
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Get the engine nice and hot and measure the voltage across the sensor with a multimeter. The nicer ones have a setting for K-type thermocouple.

Or - buy a $5 probe meant for a multimeter and hook it to the gauge. Test with a lighter or torch.

http://www.ebay.com/sch/i.html?_trksid=p...&_from=R40
This post was last modified: 11-27-2012, 04:15 PM by 300SD81.
Ich liebe meine Autos!

1981 Mercedes-Benz 300SD | 156K Miles | 2nd Owner | EGR Disabled [Removal Pending] | ALDA Removed | Straight Pipes | GT2256V??? | Laser Interceptor | Engine swap over summer, hopefully with GT2256V attached...

1981 Mercedes-Benz 300SD | Odo Stopped at 160K (at least 50K more) | EGR Disabled | ALDA All The Way Out | Straight pipes | FM-870 Remote Start Alarm System | B100 Biodiesel | AC Fixed x2 | Trunk crushed in Sad | Retired to garage.

Excessive speeding? It ain't excessive till I redline!
300SD81
11-27-2012, 04:14 PM #2

Get the engine nice and hot and measure the voltage across the sensor with a multimeter. The nicer ones have a setting for K-type thermocouple.

Or - buy a $5 probe meant for a multimeter and hook it to the gauge. Test with a lighter or torch.

http://www.ebay.com/sch/i.html?_trksid=p...&_from=R40

Ich liebe meine Autos!

1981 Mercedes-Benz 300SD | 156K Miles | 2nd Owner | EGR Disabled [Removal Pending] | ALDA Removed | Straight Pipes | GT2256V??? | Laser Interceptor | Engine swap over summer, hopefully with GT2256V attached...

1981 Mercedes-Benz 300SD | Odo Stopped at 160K (at least 50K more) | EGR Disabled | ALDA All The Way Out | Straight pipes | FM-870 Remote Start Alarm System | B100 Biodiesel | AC Fixed x2 | Trunk crushed in Sad | Retired to garage.

Excessive speeding? It ain't excessive till I redline!

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