MEP-803a panel lights flickering

nextalcupfan

Well-known member
302
391
63
Location
NW Missouri
Just got the measurements.
0.0-0.1 Ohms between the gauges
PXL_20220228_215301504.jpgPXL_20220228_215304624.jpg
0.1-0.2 Ohms between the gauges and main panel ground
PXL_20220228_215327463.jpgPXL_20220228_215335896.jpg
5.3 Ohms between the main panel ground and main engine ground
PXL_20220228_215526801.jpgPXL_20220228_215542936.jpg

I did more measurements than what you asked because IMO its not as important between gauges as it is for the entire circuit.
You can have perfect continuity in your gauge panel but if the wires/connections are bad going TO or FROM the batteries nothing is going to work.
 

m32825

Active member
199
106
43
Location
Central Florida
Just got the measurements.
0.0-0.1 Ohms between the gauges
View attachment 860327View attachment 860326
0.1-0.2 Ohms between the gauges and main panel ground
View attachment 860328View attachment 860329
5.3 Ohms between the main panel ground and main engine ground
View attachment 860330View attachment 860331

I did more measurements than what you asked because IMO its not as important between gauges as it is for the entire circuit.
You can have perfect continuity in your gauge panel but if the wires/connections are bad going TO or FROM the batteries nothing is going to work.
I found that batteries in my meter were dead, so ignore previous reading. I got 0.2 ohms between gauges, 0.2 ohms gauge to panel ground, and 1.2 ohms panel ground to main engine ground.

The problem is intermittent so it might be in that path but we're just not seeing it at the moment.

Will work on MT-4 bypass tomorrow.
 

m32825

Active member
199
106
43
Location
Central Florida
Jumping MT-4 makes no difference.

@Guyfang I hear you about vibration, but it happens without the engine running, just the fuel pump running, and on the other hand can go for long periods of time with the engine running without a problem it doesn't seem to add up.

I'm going to replace the diodes next and see if anything changes.

-- Carl
 

nextalcupfan

Well-known member
302
391
63
Location
NW Missouri
Glad you got it fixed, I feel like I should replace mine with doubled up ones too.
As a preventative measure.

Also why wouldn't you use a larger diode instead of 2 smaller ones?
 
Last edited:
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website like our supporting vendors. Their ads help keep Steel Soldiers going. Please consider disabling your ad blockers for the site. Thanks!

I've Disabled AdBlock
No Thanks