DME Voltage Drop

[mikefocke]

So under electrical load or when at low RPM there is a problem. Have you looked at the charging output? Battery load test?

[Lacostas]

Originally Posted by mikefocke

So under electrical load or when at low RPM there is a problem. Have you looked at the charging output? Battery load test?

Yes but the voltage is always lower in the DME. Plus when i activate AC for example, the DME Voltage almost stays intact but it shoudlnt (afaik).

1. Alternator and VR are new.
2. Battery is 2 y.o and "seems" pretty good
3. Engine ground strap is new
4. Throttle body is new
5. No CEL

I believe that something (corrosion?) is dropping the voltage and DME doesnt see any spikes/drops and thats why it cant "correct" the RPMs on time.

[Lacostas]

I checked the voltage on both the DME relays (Pin #30) and both were showing around 0.3V lower voltage than the battery.

Also measured the C1 fuse voltage and it was the same as the battery. So i guess it may be an issue from the FUSE Box back to the relay ?