I have a 2.4 V6 and it's been drinking fuel like mad, seems to be running very rich all the time. Also the MPG display is very erratic when driving, keeps displaying 0 and also seems to be just flashing up random numbers, seems to have little to do with the way I'm driving, have seen it flash numbers up to 154mpg - which would be nice!, is there a sensor that may be causing this?, or anything I can look up in Vagcom for clues?
Then issues with coolant temp: if I build up heat by holding the revs at 2 or 3k while stationary I can get the gauge up to 90degrees but then as soon as I start driving it will drop down rapidly - suspect thermostat jammed open - does this sound right?
I also think there may be issues with a coolant temp sensor as well. I did two sets of tests using the VAGCOM Group 4 measuring blocks and the climate control display reading 51:
Test1: VAGCOM GRP4,Block3 @ 58c while GRP4,Block4 @ 31c & Climate Control 51 @ 78c
Test2: VAGCOM GRP4,Block3 @ 62c while GRP4,Block4 @ 33c & Climate Control 51 @ 90c
Surely the coolant temps can't vary that much? can someone explain where the different readings are coming from and which sensor(s) may be faulty...
Any clues or advice would be much appreciated.
Then issues with coolant temp: if I build up heat by holding the revs at 2 or 3k while stationary I can get the gauge up to 90degrees but then as soon as I start driving it will drop down rapidly - suspect thermostat jammed open - does this sound right?
I also think there may be issues with a coolant temp sensor as well. I did two sets of tests using the VAGCOM Group 4 measuring blocks and the climate control display reading 51:
Test1: VAGCOM GRP4,Block3 @ 58c while GRP4,Block4 @ 31c & Climate Control 51 @ 78c
Test2: VAGCOM GRP4,Block3 @ 62c while GRP4,Block4 @ 33c & Climate Control 51 @ 90c
Surely the coolant temps can't vary that much? can someone explain where the different readings are coming from and which sensor(s) may be faulty...
Any clues or advice would be much appreciated.