RyanRs wrote:pull the black box in the boot and the IC fan will run all the time.
Pretty sure if you pull the ECU, it won't run at all given its integral to the circuit?
Surely you mean:
chrisrev2gt wrote:Or pull the sensor on the engine lid and the fan will run all the time.
This is very common on the mr2.
Which doesn't work when the intermittent fault is occuring.
I replaced the fan ECU in the trunk, THOUGHT it had fixed it, but it hasn't.
Sometimes it works, sometimes not
- when not, disconnecting the sensor does nothing.
However, I've sussed it
- and I'm sure Mr Gidden will appreciate this lol
- its almost certainly down to that bloody black/yellow wire in the loom again!
It has affected a few things of mine, Peter says he has personally seen a few cars affected though, so it isn't just mine.
Basically, something is progressively breaking down in this wire, and I think I have narrowed it down to one of the factory splice points corroding.
So far I've had it where my ISCV/TVIS and probably T-VSV and Air-Con Idle up not working, patch repaired to get voltage into those, then my alternator stopped charging, lo and behold it was that wire again but either a different point, or as I now think, something along the lines of the splicing point becoming more corroded perhaps.
Especially because when I look at the Engine Compartment Cooling Fan wiring diagram what do I see?
Black and yellow wire running from fuse AM2, and it mentions a splice point to alternator.
Hmmm, just too much coincidence.
I have a reel of new wire there, I'm just going to have to properly rewire that run myself I think rather than patching!!!
Peter, do you know where the splice point is for the alternator?
I'm naturally assuming its where the loom splits off to go down through the centre of the inlet manifold?