EPAS and PSCAN

This is all great stuff & proves what an inventive lot we are, much more interesting than tyre pressures, plug gap & other hardy perenial questions, all of which are answered many times over in articles on T-Bar & other forum. Thanks, Mike

r2d2hp wrote:

Thankyou, I believe that is the MGTF ECU that picks up speed from gearbox sensor.....

All cars get a signal from the speedo.
Mk1 F has a mechanically driven speedo.
MK2 F and MGTF have an electrically driven speedo using a signal from a gearbox sender.

Ive been working on an EPAS transplant for a while but only just spotted this useful thread.

Is anyone able to confirm the EPAS (pink wire from EPAS ECU) does actually connect to pin 7 on the OBD2 port please ?

Adding anOBD2 port to the MGB so I can use PSCAN to talk to the MGF EPAS system could be handy neat but i'd like to double check the pin as I couldn't find the pin out details for the OBD2 on the RAVE circuit diagrams.

Is this of any help? (OBD2 port is the same for all 2003 cars)

MG TF mk1



MG TF mk2

Thanks. I didn't realise that the obd2 port's pin 7 was shared by multiple ecus.

I have had access to the Rovacom system whenever I’ve wanted to do any checks on my car, which is one reason for my reticent in your earlier post. It’s expensive & it’s not mine, although it spent a lot of time with me until recently.
One apparent aspect of its operation seemed to be a series of hand shakes when initially connected up. Almost a stock check or the calling of a register to make sure all were present who should be present.
This might not be the case, it was just the way I rationalised in my mind. Obviously if that we’re the case, pscan would address the system, find only one member in attendance & scratch it’s head & ask for another headcount.
This is obviously not the case or pscan wouldn’t give you the green light.
As with all the extramural experiments I’ll be watching with interest. I really will have to get myself a pscan, then I can join the mainstream.
It feels a bit like when I had an Acorn Archimedes whilst everyone one around me had a PC.
M

The Acorn users definitely had better exposure to programming. I was the silly bugger with an Amstrad PCW with 3 inch discs that weren't compatible with anything else.

Being an Arc user was a bit like Billy no mates & although there was a PC emulation mode it was just slow. I invested a lot of money in a system for work, but I wanted the kids to do a bit more than play “James Pond” & they did, hence the Arc.
We still used a heavily modified BBC B to design PCB’s; rubberband the circuit, press return & forget all about it for a few days.
M