Ranger Mods

I can only give you the guide as per PX1 in the previous link so without screen shots of Forscan as-built area etc. I have nothing to see. Online as-built data serves no purpose and does not show the possible issue of not being able to see CCC mode in Forscan.

There is no point in you being able to see the tyre sizes, they will be at the maximum anyway, you have nothing to change and nothing to gain, but if you still want to see it then you may be best to contact Forscan directly so they may guess also.

Hi Folks

I'm a bit of a Forscan bumbly and want to check I'm right before I hit the button. I've changed seatbelt warnings, lights, temp display etc using the nonasbuilt functions and it's working brilliantly. Want to change my tyre size, which seems I need to use the abuilt side of things.
Have updated my extended licence, got SAEB's excellent dongle (get one, save yourself the ebay grief!) and can log in and out no problems.

I have a 2017 xls, which came stock with 255/70/16 tyres. I've put Bridgestone D697s on it at 265/75/16 (tad under 32in)
I've read as much as I can find and am aware I can't get the exact size and that the above settings are the best I can get (0977)

My question, which occurred to me as I was about to change it in asbuilt is this:

My numbers are different to Stewarts - he had 0936 where I have 0910, which I assume is due to having 255 x 70 x 16 tyres standard.

Do I need to change anything else to allow for the cookie cutter tyres which came on the xls?? or just change 0910 to 0977 and hit write??

Apologies if this has been covered elsewhere, I couldn't find it if it has.

Great site, thanks for all the help I've been getting in the background!

Cheers
Glenn

Yep Glenn,it's that easy mate. Back things up first just in case, but if 0977 (which is the max for an auto) is what your happy with, write away.

Thanks Gerry,
What you dont know you dont know is always what gets you, so I thought I'd better check, in case I was missing something.
I'll give it a go this evening, although I'll miss the speedo being dead on with the gps!
Hey, can you tell me what happens when you reach the DTE on the speedo? Surely it doesn't use the calculation to then cut fuel does it?
Appreciate the help.
Cheers
G.

I have been at 0 DTE numerous times without an issue.

Twice I have driven past 0km DTE (5km and 3km), made it to the servo with no issues! Both times I got 129.xxL in the tank.

So we know that we have a 4% speedo buffer on standard speedo setup but what DTE buffer is there once we change the speedo buffer to 0% or exact speed on speedo?

I am getting DTE which seems a few L too high with the 0977 Forscan input.

On what size tyres? You will find you pobably need to go higher, maybe 0986 but cannot due to the fault code that will be thrown.

Try it to 0% and see, post your findings but rememeber that every other module int he car will think you are going 4% faster than what you actually are.

I didn't want to start a new thread for this but thought it most relevant here.

Yesterday I had 285/65R18 fitted to my Wildtrack. The day before, I did a benchmark test to see how accurate the speedometer was with the standard tyres. To do this I used a ground speed radar (that we use at work for other things) which was fresh from calibration and has a resolution of 5000Hz so much more accurate than any GPS based speed reading device.

With the standard tyres, I found that between 50 and 70km/h the displayed speed was around 3km/h under actual speed.

With the larger tyres fitted the displayed speed is 0.2km/h over actual speed.

Something I found during this process is that Waze's GPS speed (shown via Carplay) is inaccurate, over reading by around 5km/h but another app called "GPS Speed" was spot on once a constant speed has been reached.

I don't plan on changing anything on the vehicle as I can live with a 0.2km/h error.

Goochie wrote: ↑Wed Jun 12, 2019 10:50 am I didn't want to start a new thread for this but thought it most relevant here.

Yesterday I had 285/65R18 fitted to my Wildtrack. The day before, I did a benchmark test to see how accurate the speedometer was with the standard tyres. To do this I used a ground speed radar (that we use at work for other things) which was fresh from calibration and has a resolution of 5000Hz so much more accurate than any GPS based speed reading device.

With the standard tyres, I found that between 50 and 70km/h the displayed speed was around 3km/h under actual speed.

With the larger tyres fitted the displayed speed is 0.2km/h over actual speed.

Something I found during this process is that Waze's GPS speed (shown via Carplay) is inaccurate, over reading by around 5km/h but another app called "GPS Speed" was spot on once a constant speed has been reached.

I don't plan on changing anything on the vehicle as I can live with a 0.2km/h error.

Yes, IOS and certain apps do have an issue where the speed is in fact wrong.

strange my Waza speed is spot on as compared to other gps speedo apps.
I did notice that Obdlink app shows te 4-5km difference that the original; speedo had before Forscan change to align speedo accuracy, must get ts info from another module

OBDlink from BCM, which is coming from wheels sensors.

Waza on Android ok, just IOS and carplay on some builds is out, if you unplug phone then it is correct.

That’s interesting about Waze! On the way to Melbourne (285/75/17 on an Everest) Waze had me at 129kmh, car said 100kmg and speed check outside Albury said 104kmh. Was getting worried! Once and only once Waze was correct and that must’ve been unplugging and replugging like you said. Need to change my parameters!

I've been running the 285/65R18 for a couple of weeks now, basically the same routes as with the standard tyres.

Fuel economy has increased by 11% with the bigger tyres.

I'm running 285/65R17 which is just 50mm (1") larger than the standard tyres and it's made a noticeable difference. I think running LT/AT tyres doesn't help either.

Hey Stewart, today I’ve driven a loan new ranger while my car was being serviced and found out that the adaptive cruise control it’s much smoother than on my my17 Everest. Which ecu module controls the acc, so I can ask if any software update for it? Also, I had a feeling that the acc became rougher when I’ve changed tyres to larger diameter (above 0977); does such module use the tyre diameter value for its algorithms, so that changing tyres to a size that cannot be input exactly affects negatively the performance of the acc?

I use adaptive cruise on a daily basis and noticed no difference when fitting larger tyres.

Same... I have larger tyres and changed it using Forscan. No perceptible difference.

rusty-pie wrote: ↑Mon Jul 08, 2019 10:16 pm Hey Stewart, today I’ve driven a loan new ranger while my car was being serviced and found out that the adaptive cruise control it’s much smoother than on my my17 Everest. Which ecu module controls the acc, so I can ask if any software update for it? Also, I had a feeling that the acc became rougher when I’ve changed tyres to larger diameter (above 0977); does such module use the tyre diameter value for its algorithms, so that changing tyres to a size that cannot be input exactly affects negatively the performance of the acc?

Mainly PCM. Ask dealer for PCM update and see what it is like.

I assume you do not have a tune?

saeb wrote: ↑Wed Jul 10, 2019 2:21 pm
Mainly PCM. Ask dealer for PCM update and see what it is like.

I assume you do not have a tune?

No tune. I did ask to check for updates to any module as I wasn’t sure about which one was the right one and they told me that if any ECU update was out they would install it. I’m going to pick up the car later this afternoon so I have no feedback yet.

The ranger acc was definitely more preemptive than reactive, ie my Everest doesn’t seem to brake sufficiently initially if a car in front slows down and has to brake more suddenly later when it gets too close. The Ranger was more constant and didn’t seem to have that “elastic band” effect.

They will not check updates to all modules as they would be spending hours and hours on it.

Possibly ask for PCM and CCM updates and see what happens. Still no guarantee they will do them though.

Hi,
I've read many posts here but I don't figure out exactly what should I change for my tyre size.
0977 is the key, if I get any errors on my tyre size I will try that, thats ok but when I calculate my tyre size with the ultragauge converter I get the number "098B" .
I have 2017 ranger manual transmission. Should I try this first or just try 0977?
my tyre's are 265/75/16 BF A/T...

Thanks


Ps: I tried to change the value to the exact tyre size which is "098B" for 265/75/16 and drive on highway for 25km. I open a program for gps on my phone and make comparison between the tacho and the gps. I set cruise control for 100kmh and the gps shows 96kmh. Thats it. The km on gps and the tachometer was very similar, they were nearly the same. I didn't get any errors like check engine light or something else. I didn't check again with forscan and I'll check that tomorrow. If there is no dts, I will be very happy.
Dear Saeb, thank you very very much for your efford to help us....

My sync 3 has just been updated during service and now the gps speed on Waze (which was spot on before) is around 10kmh out, has anyone managed to get it back to being accurate?

Tried 0977 and 0976 on my px3 biturbo and getting the spanner come up and throw this code.
Default setting was 0933

In the asbuilt list of items look up the top. Do a PCM and a TCM relearn after the changes are made and it will be fixed. Note, you can enter any tyre size you like in the 10 speed so feel free to post you tyre size and I will give you the change.