Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing GDI Gauges Intermittent Fault

Update

Had a couple of runs out with just the Speedometer connected to the SAT-BUS and it has not dropped out once, which makes sense if it doesn't use the CAN-BUS.

For the second run I connected my Torque Pro to the OBD port and logged the Revs and Water Temps, I wanted to see if they were dropping without the gauges/SAT-BUS involved. A review of the log shows no issues, no blank records and no delays between entries. This needs to be repeated before giving it any significance though.

Next runs set for Sun & Mon. and I'll connect the Rev Counter back up to see what happens.

I'm afraid I haven't got anything constructive to add Mark, but I'm loving the learning process that's going on here. I'm sure you'll track the fault down in the end with such a methodical approach.

Update

I re attached the Rev Counter and Water Temp Gauges.

From a cold start the Rev counter does not register any Revs for a short while (5-10 seconds) but then works fine for the rest of the trips. This is new, it has always been instant and still is if started soon after switching off. Torque Pro shows the Revs during this period.

The water temp gauge appears to work fine but the scale starts at 60 degrees so wouldn't register straight away. Again Torque Pro registers the temp from start up.

There has been no observed drop in any of the Gauges, I increased the frequency of the Torque Pro Log entries to half a second for the recent runs and there was 1x instance of Torque Pro reconnecting to the ECU, the drop was only 1 record so half a second, which doesn't feel significant but someone on here may put me right.
I'm not expecting m/any comments at this stage, it just helps to write down where I'm at and may help others in the future.

I don't plan to add the Fuel Gauge for a while, I want to be as certain as I can be that the problem has gone before adding it, and due to Grandparent duties during the 6 weeks holidays it may be a while before we get any significant runs out.

Regards