Toaf question…Early cars VS late cars.

Briodyjl01 · 29th January 2023, 17:54

Hello all,

I have a TOAF question for you all.

Me and a friend who is on here (Biffa75) has been checking S544 AOX and T460 LNV and YS53 AZP.

I have been trying to read the live engine data on S544 AOX and Biffa75 has been trying to read it on T460 LNV. Neither of them we were able to read it. S544 is a v6 and T460 is 1.8 petrol.

We then both tried YS53 AZP that is a 2.0 cdt and we could read the live engine data. Biffa75 can also read the live engine data on his 04 plate 2.0 cdt.

Did the earlier cars have different ECUs? As it shows the manufacturer of the ECU for S544 and T460 as Motorola but doesn’t show anything on YS53.

Could someone share any advice or knowledge on this?

Was TOAF developed to run with the later type ECUS?

Thank you

Josh

vitesse · 29th January 2023, 18:51

Never tried the same but am guessing that there is limited functionality for the 1.8T, a bit more for the V6s and as diesels are the big thing in Poland more features were available.

Don't think it's anything to do with the year of the ECU/ECM, but I don't know diesels and have only even used Toaf on V6s & the occasional 1.8T where the ECU/ECM have been displayed. You sure the V6 said "Motorola" as I believe they are Siemens? (Motorola is correct for the 1.8T)

Regards

Jamiewelch · 31st January 2023, 07:26

Quote:

Originally Posted by vitesse

Never tried the same but am guessing that there is limited functionality for the 1.8T, a bit more for the V6s and as diesels are the big thing in Poland more features were available.

Don't think it's anything to do with the year of the ECU/ECM, but I don't know diesels and have only even used Toaf on V6s & the occasional 1.8T where the ECU/ECM have been displayed. You sure the V6 said "Motorola" as I believe they are Siemens? (Motorola is correct for the 1.8T)

Regards

Siemens EMS2000 for the V6. TOAF works ok with diesel ecus, it works better with the NNN100692 than it does for NNN100720 and NNN500340 (identical hardware just different flash).

BigRuss · 31st January 2023, 14:15

There are certainly programming differences between the pre- production and very early production cars compared to the others.
To deal with them properly you need the appropriate very early disc(s) for T4 to look at them.

Toaf probably won't do it as it is based on the later programming.

I've got the very early discs somewhere, will have to dig them out as I haven't needed to use them in years.

Russ

29th January 2023, 17:54	#1
Briodyjl01 Gets stuck in Rover 75 Tourer, Rover 75 Saloon Join Date: May 2018 Location: Castleford Posts: 974 Thanks: 237 Thanked 185 Times in 113 Posts	Toaf question…Early cars VS late cars. Hello all, I have a TOAF question for you all. Me and a friend who is on here (Biffa75) has been checking S544 AOX and T460 LNV and YS53 AZP. I have been trying to read the live engine data on S544 AOX and Biffa75 has been trying to read it on T460 LNV. Neither of them we were able to read it. S544 is a v6 and T460 is 1.8 petrol. We then both tried YS53 AZP that is a 2.0 cdt and we could read the live engine data. Biffa75 can also read the live engine data on his 04 plate 2.0 cdt. Did the earlier cars have different ECUs? As it shows the manufacturer of the ECU for S544 and T460 as Motorola but doesn’t show anything on YS53. Could someone share any advice or knowledge on this? Was TOAF developed to run with the later type ECUS? Thank you Josh __________________ Too many Rovers to count ……

31st January 2023, 14:15	#4
BigRuss Premium Trader 75 CDT Tourer,2.5 Launch Saloon, Omipro MG/Rover (T4) Join Date: Jul 2007 Location: Liversedge, West Yorkshire Posts: 5,405 Thanks: 1,105 Thanked 1,340 Times in 661 Posts	There are certainly programming differences between the pre- production and very early production cars compared to the others. To deal with them properly you need the appropriate very early disc(s) for T4 to look at them. Toaf probably won't do it as it is based on the later programming. I've got the very early discs somewhere, will have to dig them out as I haven't needed to use them in years. Russ __________________ Replacement Key Service http://https://the75andztclub.co.uk/...d.php?t=244732 Full T4 Testbook diagnostics available. Diesel ECU repair and replacement. Options enabled or disabled as required. Diesel X-Power 135 and 160bhp, Rover 1.8T 150 to 160 MG 160 V6 to 177 upgrades available P.M. for details.

29th January 2023, 18:51	#2
vitesse I really should get out more....... Rover 75 Saloon Join Date: Jul 2011 Location: Gävle Posts: 2,537 Thanks: 395 Thanked 823 Times in 652 Posts	Never tried the same but am guessing that there is limited functionality for the 1.8T, a bit more for the V6s and as diesels are the big thing in Poland more features were available. Don't think it's anything to do with the year of the ECU/ECM, but I don't know diesels and have only even used Toaf on V6s & the occasional 1.8T where the ECU/ECM have been displayed. You sure the V6 said "Motorola" as I believe they are Siemens? (Motorola is correct for the 1.8T) Regards