Rescued attachment coolant temp sensor curve.jpg
Just a question to make sure I'm not going mad...
Just had me 2 zetec sensors in the fridge, under me arm then in the kettle...
So..
1. fridge both 77000 ohms
2. armpit both 25000 ohms
3. Kettle neck 2500 ohms
Anyone confirm this is correct please???
These are the std ford temp sensor values, so not far out
Rescued attachment coolant temp sensor curve.jpg
Yep, they look about the same as mine. Thanks for the table Flak! It's always nice to have some definite values.
Ed.
If you replace the bias resistors on the MS PCB with 27k ohm ones then there is no need to use easytherm. Lots of people seem to have problems with
easytherm corrupting the firmware and so changing the 2 resistors is the easiest method as long as you can solder confidently.
Paul
quote:
Originally posted by paulf
If you replace the bias resistors on the MS PCB with 27k ohm ones then there is no need to use easytherm. Lots of people seem to have problems with easytherm corrupting the firmware and so changing the 2 resistors is the easiest method as long as you can solder confidently.
Paul
I assume thats only applicable to the ford temp sensors? Yes it applies to the ford spec sensors but other sensors can be used and the board modified to suit by changing the resistors.I could not get the
correct spec ones when i built the megasquirt on my car and so used some Peugeot ones and changes the bias resistor to suit them, I think I used
something like 3.3k .The air temp is the critical one as this directly affects the fueling whereas the water temperature one is only used for warm up
enrichment and can be made to work correctly if not exactly correct by changing the warm up enrichment tables.
If you have time to search the MS forums it is all listed on there but like most things on there takes a bit of time to find the correct info.
Paul
quote:
Originally posted by flak monkey
quote:
Originally posted by paulf
If you replace the bias resistors on the MS PCB with 27k ohm ones then there is no need to use easytherm. Lots of people seem to have problems with easytherm corrupting the firmware and so changing the 2 resistors is the easiest method as long as you can solder confidently.
Paul
Thats interesting, might just try that.
David