Hi all

Havent used UKAT for a while but need to share this fault with you. Ford Galaxy, 2.3L petrol. Occasional sudden and quick drop in engine speed, feels a bit like 1 misfire, no pattern to it and no warning when it is gonna happen, sometimes once every couple of minutes, sometimes several every 5 or 10 minutes. None of the live data readings drop out when this fault occurs.

No faults were stored. Live data showed the temp sensor starting at -11C and rising to 63C, replaced temp sensor and still get same readings. Also noticed throttle voltage starts at 0.1v closed and 0.8 WOT on scanner. Getting the same throttle voltage readings at the ECU with voltmeter. If i disconnect the ECU and measure resistance at the ECU plug, im getting 0-3.7K from the throttle sensor which is good and im getting 40K on the temp sensor which is about right (autodata shows 20C as 38K). I am getting 5ohms (anywhere in the circuit) on the common earth for these sensors which should be an earth fron the ECU, tried a parallel earth but made no difference to the readings.

Anyone else had this or similar? Im thinking maybe faulty ECU?