T4/TOAF Question

mbonwick · 22nd November 2018, 16:05

Is it possible to change the engine map on MEMS3/K series (non-turbo) with T4 or TOAF, or does it need more exotic/specialist software?

Got a 75 that's struggling with a set of 135 cams in, think I've eliminated anything physically wrong with the engine and I'm increasingly hearing the opinion that it's map related.

T-Cut · 22nd November 2018, 20:49

I seem to remember the public version of TOAF doesn't communicate with MEMS3.

TC

sworks · 22nd November 2018, 20:55

The fitting of 135 cams to a 120 1800 should run ok on the 120 map as far as I believe as I’ve never read of issues before after this has been done. Maybe SAWS tuning can help?

mbonwick · 22nd November 2018, 21:38

That's what I thought as well, unless it's something car specific.

It runs too rich at idle (likes to throw P1300 and P1316 codes with random multiple misfires thrown in sometimes too), but then seems to be a bit lean up the top of the rev range (which is not unexpected I guess).
Should add that it starts no bother, and runs OK until it goes open circuit control, then is awful before it goes away again as it gets warm. Runs fine when hot.

Compression OK, timing OK, no air leaks, coolant & oil temp sensors OK. pscan livedata shows nothing obviously amiss either so I'm at a bit of a loss really.

marinabrian · 22nd November 2018, 21:45

It needs to have the adaptations cleared, then then the ECM, and I'm assuming an NNN000110 will learn the new "characteristics" of the engine.

Failing that, a trip to see Mark at KMaps will be on the cards

Brian

mbonwick · 22nd November 2018, 21:53

Thanks Brian, knew you'd be along with a sensible way forward

You've got me a bit confused by

Quote:

Originally Posted by marinabrian

It needs to have the adaptations cleared, then then the ECM

I get the clearing adaptation bit, not sure on the next bit about the ECM? Probably just me being thick, it's been a long day!

pletevl · 9th April 2019, 07:08

Quote:

Originally Posted by mbonwick

That's what I thought as well, unless it's something car specific.

It runs too rich at idle (likes to throw P1300 and P1316 codes with random multiple misfires thrown in sometimes too), but then seems to be a bit lean up the top of the rev range (which is not unexpected I guess).
Should add that it starts no bother, and runs OK until it goes open circuit control, then is awful before it goes away again as it gets warm. Runs fine when hot.

Compression OK, timing OK, no air leaks, coolant & oil temp sensors OK. pscan livedata shows nothing obviously amiss either so I'm at a bit of a loss really.

mbonwick,

little question, as I have a ZR and a TF with the same problem.
When you first start it, when it's cold, does it run OK for 30 odd seconds and then start playng up ?

Pete.

mbonwick · 9th April 2019, 19:37

Ben - definitely not the IMG as it has a VVC metal manifold fitted.

Pete - that's pretty much exactly what it's like. Maybe not 30 seconds, but it starts OK, runs OK for a bit then develops the miss.

Now, twice today it's also had a misfire when hot. Codes only relate to cylinder number 2. So I pulled the plugs, and sure enough the other 3 look fine, but no. 2 is very wet and sooty.
Shine a torch down the hole and can see fluid on top of no.2
Let it dry out then do a compression test - comes back marginally higher for no.2 which is wet again.
Swap coils & plugs around, run for a brief period - again no.2 wet.

Thinking I might have a sticking injector? Surely if it the fuel pressure regulator was leaking past no.1 or even no.3 would show some evidence of overfuelling? Even when I ran pscan in BMW mode it was only no.2 that showed up a misfire count.

22nd November 2018, 16:05	#1
mbonwick Gets stuck in Connoisseur SE 1.8 Auto Saloon Join Date: Jul 2015 Location: Kendal Posts: 633 Thanks: 129 Thanked 176 Times in 147 Posts	T4/TOAF Question Is it possible to change the engine map on MEMS3/K series (non-turbo) with T4 or TOAF, or does it need more exotic/specialist software? Got a 75 that's struggling with a set of 135 cams in, think I've eliminated anything physically wrong with the engine and I'm increasingly hearing the opinion that it's map related.

22nd November 2018, 20:55	#3
sworks Been absent for a while… Rover 75 Tourer, Classic mini Cooper S, Abarth 595 competizione, MG TF and a Hyundai Tucson PHEV Join Date: Feb 2007 Location: Cumbria Posts: 13,065 Thanks: 1,033 Thanked 1,686 Times in 1,040 Posts	The fitting of 135 cams to a 120 1800 should run ok on the 120 map as far as I believe as I’ve never read of issues before after this has been done. Maybe SAWS tuning can help? __________________ ................................................. 'Marmite' Possibly one of the most famous 75 tourers produced! left the production line as the last of only Three Rover 75 tourers produced in Trophy Yellow. 48 hours later Longbridge closed. The last sold ordered 75 Tourer. Paid for by the Phoenix Four and handed over by John Towers to the Warwickshire Northampton Air ambulance service as a Rapid Response vehicle Last edited by sworks; 22nd November 2018 at 20:58..

22nd November 2018, 21:38	#4
mbonwick Gets stuck in Connoisseur SE 1.8 Auto Saloon Join Date: Jul 2015 Location: Kendal Posts: 633 Thanks: 129 Thanked 176 Times in 147 Posts	That's what I thought as well, unless it's something car specific. It runs too rich at idle (likes to throw P1300 and P1316 codes with random multiple misfires thrown in sometimes too), but then seems to be a bit lean up the top of the rev range (which is not unexpected I guess). Should add that it starts no bother, and runs OK until it goes open circuit control, then is awful before it goes away again as it gets warm. Runs fine when hot. Compression OK, timing OK, no air leaks, coolant & oil temp sensors OK. pscan livedata shows nothing obviously amiss either so I'm at a bit of a loss really. Last edited by mbonwick; 22nd November 2018 at 21:40..

22nd November 2018, 20:49	#2
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	I seem to remember the public version of TOAF doesn't communicate with MEMS3. TC

22nd November 2018, 21:45	#5
marinabrian MG ZT Join Date: Jan 2011 Location: Newcastle Upon Tyne Posts: 20,151 Thanks: 3,565 Thanked 10,837 Times in 5,718 Posts	It needs to have the adaptations cleared, then then the ECM, and I'm assuming an NNN000110 will learn the new "characteristics" of the engine. Failing that, a trip to see Mark at KMaps will be on the cards Brian

9th April 2019, 19:37	#8
mbonwick Gets stuck in Connoisseur SE 1.8 Auto Saloon Join Date: Jul 2015 Location: Kendal Posts: 633 Thanks: 129 Thanked 176 Times in 147 Posts	Ben - definitely not the IMG as it has a VVC metal manifold fitted. Pete - that's pretty much exactly what it's like. Maybe not 30 seconds, but it starts OK, runs OK for a bit then develops the miss. Now, twice today it's also had a misfire when hot. Codes only relate to cylinder number 2. So I pulled the plugs, and sure enough the other 3 look fine, but no. 2 is very wet and sooty. Shine a torch down the hole and can see fluid on top of no.2 Let it dry out then do a compression test - comes back marginally higher for no.2 which is wet again. Swap coils & plugs around, run for a brief period - again no.2 wet. Thinking I might have a sticking injector? Surely if it the fuel pressure regulator was leaking past no.1 or even no.3 would show some evidence of overfuelling? Even when I ran pscan in BMW mode it was only no.2 that showed up a misfire count.