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PostPosted: Thu Oct 26, 2017 6:01 pm 
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Wasn't getting anywhere this morning, swapped the old Lambda probe in and it gave the same readings. So I took the TEC97 ECU off the car and made up a test harness on the workbench, using a variable psu to inject different voltages into the lambda sensor pin of the ECU.

Needless to say it performs perfectly on the bench, so I'm no further into finding out the cause of my problem. I did check out the different options for Lambda sensors, and while there are four options for 5v sensors, the 0-5v (+) appears identical to the 5-0v (-), and the same with the 0-5v (-) and 5-0v (+).

Next step is going to be breaking into the wiring harnesses and seeing if there's any bad connections. With the TEC97 box removed, I did put the 'scope probe on the Lambda signal pin of it's connector, and it appeared to be OK there.

BTW I also tried the Polish TEC99 software, and it seems to work fine on a TEC97 box, so an English language version would be gratefully received. ;)

I also tried the TEC99 EVO software but it wouldn't connect, The only have an Italian version, so I have no idea if the error message indicated a COM port problem, or if it's not compatible.


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PostPosted: Sat Oct 28, 2017 4:23 pm 
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pinballdave wrote:
BTW I also tried the Polish TEC99 software, and it seems to work fine on a TEC97 box, so an English language version would be gratefully received. ;)
I'll upload the one I have on Monday when I'm back in the UK. Uploading stuff could seriously damage the data allowance on my phone.......

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PostPosted: Mon Oct 30, 2017 6:58 pm 
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Try this https://drive.google.com/open?id=0BzxqP ... k4yaUttSUE

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'98 Ex-Police Range Rover 4.0, Singlepoint AEB Leo, my daily motor
'97 Range Rover 4.0SE, eGas multipoint, a project.....

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PostPosted: Thu Nov 02, 2017 5:50 pm 
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Gilbertd wrote:


Thanks for uploading that, but I only see an 'autorun.inf' and an icon file. It appears the 'setup.exe' referred to in the autorun file is missing.


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PostPosted: Fri Nov 03, 2017 3:26 pm 
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See if any of these work

https://www.dropbox.com/sh/oc43hsb1mpur ... aj-ka?dl=0

https://www.dropbox.com/s/eu8gkeh2tdkyq ... 7.EXE?dl=0

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Last edited by LPGC on Fri Nov 03, 2017 4:13 pm, edited 1 time in total.

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PostPosted: Fri Nov 03, 2017 3:47 pm 
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I see all three files, the autorun, icon and setup. Maybe your firewall or virus software is blocking exe files?

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'98 Ex-Police Range Rover 4.0, Singlepoint AEB Leo, my daily motor
'97 Range Rover 4.0SE, eGas multipoint, a project.....

Proud to be a member of the YCHJCYA2PDTHFH club.


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PostPosted: Fri Nov 03, 2017 4:22 pm 
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I tried your link Gilbert and also only saw the same files as Dave. And I don't know how to use Dropbox properly so I don't know if my links will work lol..

Setup file is only 210Kb, if Dave PM's me or Gilbert his email address we could email the setup file(s).

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PostPosted: Fri Nov 03, 2017 5:00 pm 
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LPGC wrote:
I tried your link Gilbert and also only saw the same files as Dave. And I don't know how to use Dropbox properly so I don't know if my links will work lol..

Setup file is only 210Kb, if Dave PM's me or Gilbert his email address we could email the setup file(s).


Your link appears to work ok Simon - I can get the file from it and it does run on a xp vm (won't run on windows 10 though!)


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PostPosted: Fri Nov 03, 2017 7:21 pm 
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Just zipped the folder and uploaded that so all three files should be there when you unzip it. It's here https://drive.google.com/open?id=1oA9rL ... e9MEjhB50d

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'93 Range Rover 4.2 LSE, Lovato LovEco, sold
'98 Ex-Police Range Rover 4.0, Singlepoint AEB Leo, my daily motor
'97 Range Rover 4.0SE, eGas multipoint, a project.....

Proud to be a member of the YCHJCYA2PDTHFH club.


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PostPosted: Fri Nov 03, 2017 10:44 pm 
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I've downloaded and fired up Simon's TEC97 file in dosbox and it looks like it should work, though it's a bit late in the evening to drag the laptop outside and see if it connects to the ECU box!

Gilbert's zipped file has also downloaded OK, with all three files present. I'll fire up a VM and give it a try in the morning as well. Not sure why the .exe isn't showing in google drive, it won't be firewall or antivirus as I'm running Linux which doesn't care about windows viruses. ;) It could be that google drive is making the file private as sharing executable files could be dangerous, the same way as you can't send a .exe via gmail without zipping it up first.

Many thanks to both of you for all your efforts to help me out with this.


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PostPosted: Sat Nov 04, 2017 4:41 pm 
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That did the trick!

Using Simon's DOS version of the TEC97 software, I managed to get everything tuned in properly, and now I'm seeing the mixture reading ranging up and down nicely. I'm really not sure what I was doing wrong when I attempted the same thing with the Polish version of the software. I'm assuming that my own uncertainty with what I was seeing was causing me to confuse myself even further.

Fingers crossed that will be enough to get it through the MOT for another year.

I can confirm that the windows version of the TEC99 software (that Gilbert supplied) will not communicate with a TEC97 box, even though the polish 'TEC 99 RPO' DOS software does appear to work.

Next step is to replace the burned connector on the wiring loom, as the burned up area next to the blue wire made the plastic latch on the connector housing go brittle and break off when I first unplugged it. I'm going to pick up the proper contact removal tool and with a bit of luck I'll simply slide out the contacts from the old connector housing and push them into a new housing. The contact on the blue solenoid valve wire will also be replaced with a new one, as I don't want to risk a poor connection from the heat damaged pin burning up the new connectors.

Again many thanks to everyone who's helped me get this far.


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PostPosted: Sat Nov 04, 2017 5:24 pm 
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Good stuff Dave.

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2 miles A1, 8 miles M62,
http://www.Lpgc.co.uk
Twitter https://twitter.com/AutogasSimon
07816237240


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