Rovergauge... cannot connect

[chris1972]

Okay, puchased a cheap PC laptop especially to connect to the Chim with Rovergauge. I have the lead and the software. Assigned the COMM port. Can't connect (this is why I love my Mac stuff sooooooo much).

Running Windows 7 Ultimate, fully up to date. Have tried running RoverGauge from the CD and from the HDD.

When I plug the lead into the USB, I hear the connection noise, so the PC can see the lead.

Any suggestions? Pic of the error message I'm getting below.

[chris1972]

A couple more screenshots:

[zed4]

I think I have mine set to COM 2.

Have you installed the driver also on the CD and used the change COM port software?

[MADMAX2]

must have missed some threads where do you get rovergauge from


linky please!

[carsy]

blitzracing. Look on the Classifieds.

[chris1972]

zed4 said:

I think I have mine set to COM 2.

Have you installed the driver also on the CD and used the change COM port software?

Yes have done that. Have tried a couple of Comms ports

[blitzracing]

Theres a config error - RoverGauge is seeing com "\.\\". and it needs to see com5. Check the RoverGauge options menu- edit settings for the serial port number and add com5. This com number is will change on a PC by PC basis so it cant be pre configured.


Dont mess around with the serial port protocols (speed etc) as RoverGauge will configure these when it connects.

Edited by blitzracing on Wednesday 17th April 20:08

[chris1972]

I'll check it tomorrow, thanks for that!

[chris1972]

Got it working Mark thanks!

Only one error code, which was an ECU Checksum Error? Could this have been caused when the battery was disconnected? Anyway, have cleared the code, so will connect again in a couple of weeks. A very nervous time watching the temperature go up... and a sigh of relief when the fans kicked-in around 97 degs and the temp went down. I had my finger on the manual fan button!!!

Anyway, I'm running fuel map 5 (whatever that means).

Edited by chris1972 on Thursday 18th April 11:21

[chris1972]

[quote=chris1972]Got it working Mark thanks!

Only one error code, which was an ECU Checksum Error? Could this have been caused when the battery was disconnected? Anyway, have cleared the code, so will connect again in a couple of weeks. A very nervous time watching the temperature go up... and a sigh of relief when the fans kicked-in around 97 degs and the temp went down. I had my finger on the manual fan button!!!

Anyway, I'm running fuel map 5 (whatever that means).

[zed4]

Fuel map 5 is normal running for cars with a cat, so all good there.

I'm no expert, but should your lambda readings be right over at -100%? It seems they have no further scope for reading/adjustment. Mine weren't anywhere near there at idle.

[chris1972]

This is the short term trim.

[blitzracing]

Id agree- 100% long term trim is not correct. get the engine warm then do an ECU reset (unplug it for 20 seconds), and then it should drop to 0 when RoverGauge is reconnected. Then restart the engine and let it idle for about 2.5 mins- it needs to be in the low 90's temp wise, and the long term trim will slowly move after 2 1/4 mins or so. See where it ends up. If it hits -100% again the ECU is trying to add fuel to keep the mixture correct, but has run out of range. A misfire can cause it do this - but it will be obvious by the engine idle if this is the case. Check the short term trim as well at idle- it should be constantly shifting around the mid point.

[Steve_D]

Tried my cable and laptop for the first time.
Not good.
Comms light flashed back and forth red/green, Everything else on screen was jittering and the car started to run rough so pulled the plug. Car returned to normal...laptop thrown back in its bag.

Any thoughts?

Steve

[blitzracing]

If both the laptop and ECU are affected the only thing I can think is you have some sort of voltage on the TVR / ECU ground compared to the laptop ground- but it would have to be pretty severe to affect both the laptop and ECU. Was the laptop on internal batteries or running of a 12 v invertor on the TVR supply? Was it just Rovergauge affected or was the underlaying windows platform affected?

Edited by blitzracing on Friday 19th April 08:05

Edited by blitzracing on Friday 19th April 12:34

[zed4]

Steve_D said:

Tried my cable and laptop for the first time.
Not good.
Comms light flashed back and forth red/green, Everything else on screen was jittering and the car started to run rough so pulled the plug. Car returned to normal...laptop thrown back in its bag.

Any thoughts?

Steve

Steve,

You're welcome to check my cable/laptop/Chimaera if you want to find out which is the bad link in your setup. I'm in Lymington, so not far, and I appreciated you guys helping me source a stepper motor last Friday.

[blitzracing]

If you are making your own cables, its best to bench test them first before plugging them in. A basic resistance check between ECU transmit and ground should read 400 ohms. You need to program the USB interface itself to invert the receive signal with the FDTI software, and to test this out you need a program like Putty to do a simple loop back test between transmit and receive. The fact that the receive signal is inverted means that a simple loop back will now generate the wrong characters, but luckily this is constant, so a pattern of "x" charater in = "Y" character out can be worked out to show its working.

Steve- Ill drop you a mail later with Putty so your can test your own cable out with a couple of test characters to try.

[Steve_D]

blitzracing said:

If you are making your own cables, its best to bench test them first before plugging them in. A basic resistance check between ECU transmit and ground should read 400 ohms. You need to program the USB interface itself to invert the receive signal with the FDTI software, and to test this out you need a program like Putty to do a simple loop back test between transmit and receive. The fact that the receive signal is inverted means that a simple loop back will now generate the wrong characters, but luckily this is constant, so a pattern of "x" charater in = "Y" character out can be worked out to show its working.

Steve- Ill drop you a mail later with Putty so your can test your own cable out with a couple of test characters to try.

Hi mark
Sorry to cause you to panic...no it's not one of your leads, I made it myself.

Seeing your comments above I'm not sure I have done the 'Invert' so if you have the instructions for all that then you could well get a numpty out of trouble.

Thanks Again
Steve

[Steve_D]

Done some more work on this and pretty sure I have not done the 'invert'

Downloaded the FT_PROG utility zip and opened it.
It goes through the install without issue.
When I try to run the program I get ' The application failed to initialize properly (0xc0000135). This was on the laptop.
I've now done it all again on another PC and I think I may have completed it.

Will see next week when I have a car running I can test it on.

Steve