Thread: ECU Faults

I would be looking for frayed wires at the front of the engine behind the exhaust cooler or around the LH front corner.
Noisy crank sensor could be noisy crank sensor. I seem to recall that this could be tied to a low battery.
They ALL run better on a cold day.

Regards PhilipA

First of all, do those codes come back if you erase them and go for a ride? if yes, is the ECU loaded with the proper fuel map?

On the second note, none of those sensors are connected to earth and if it was a short to earth on the circuit that should have triggered the specific ''short to earth" fault code

The map is a standard EU3 map.
Battery is about 11.8V I think because just sitting at home. Battery indicator is green.
I have cleared the faults I'll see if they come back. If the battery voltage goes up. The aux batt is at 12.7 V has a traxide isolator.
I don't know how old the battery is. It came with the car that I bought in Sept 2015.
Wires behind the cooler? what cooler That will be easy to check.

Thanks for the ideas guys.

A short 7 k run and the battery, with the engine ofis at 12.35V on the nanocom and 12.00 on my digital multimeter. I think that the battery is ok.

What about the fault codes? Did they come back? ... i forgot to say that the ''noisy crank signal'' is usually caused but an interference from the starter while cranking which could be arching in the solenoid, at the brushes or in the winding though 12.35V is not such good value as it's below 75% , hook it to a charger over night and see then

12V Car Battery Voltage Chart

Faults have not returned. Cleared yesterday.

So they were hystorical

I don't remeber when I last checked them, could be a year or two.