Almost, but not quite there...

[Mike :)]

Hi,

As you can guess, I am new to this....

I am having trouble getting a valid responce from my VX II V6 commodore.

I get :
Interface OK
Chatter detected OK,

but when I start aldl I get a time out. This is the chatter I get when I start ALDL:

Any ideas?


Mike

27:22.763: (27:22.763)$40,$58,$AE,$C1,$04,$F5
27:22.786: (27:22.765)$41,$63,$00,$00,$00,$34,$33,$00,$00,$70 ,$F8,$13,$00,$00,$10,$14,$56
27:22.798: (27:22.798)$A8,$55,$03
27:22.801: (27:22.801)$A9,$57,$01,$00,$FF
27:22.815: (27:22.815)$20,$55,$8B
27:22.822: (27:22.817)$21,$58,$BC,$35,$46,$50
27:22.831: (27:22.831)$D8,$55,$D3
27:22.851: (27:22.851)$90,$55,$1B
27:22.958: (27:22.958)$91,$58,$18,$00,$00,$FF
27:22.960: (27:22.960)$A0,$55,$0B
27:22.962: (27:22.962)$A1,$57,$08,$00,$00
27:22.964: (27:22.964)$11,$5C,$FF,$00,$4C,$07,$0A,$00,$00,$37
27:22.966: (27:22.966)$40,$58,$AE,$C1,$04,$F5
27:22.967: (27:22.967)$41,$63,$00,$00,$00,$34,$33,$00,$00,$70 ,$F8,$13,$00,$00,$10,$2A,$40
27:22.969: (27:22.969)$08,$55,$A3
27:23.064: (27:23.064)$40,$58,$AE,$C1,$04,$F5
27:23.087: (27:23.066)$41,$63,$00,$00,$00,$34,$33,$00,$00,$70 ,$F8,$13,$00,$00,$10,$44,$26
27:23.099: (27:23.099)$A8,$55,$03
27:23.101: (27:23.101)$A9,$57,$01,$00,$FF
27:23.116: (27:23.116)$20,$55,$8B

[Blacky]

Have you got the bus silence commands set up correctly?
See the attached screen shot for an example.
Paul

[Mike :)]

I checked the timings. I have not changed the VX V6 definition, and they are the same as those you sent.

I have a long cord between the car and the computer. Is this type of problem an indication of data loss over a cable that is to long?

I'll try another shorter cable.

Mike

[Blacky]

How long is the cable? I use a 30 foot serial cable with no problems.

Some points to consider:

1. Turn on the menu option View->Serial I/O. That will give more details about the data being sent to/from the vehicle.

and

2. Are you using a USB to serial converter? Most converters do not work with ALDL data because the baud rate required (8192 bps) is not supported by "mainstream" USB to serial converters.

Regards
Paul

[Mike :)]

This is the chatter with serial view on...

09:51.159: Check vehicle interface...
09:51.163: Waiting for Aldl bus silence of at least 10ms...
09:51.198: Requesting Max232 interface to acknowlege: $FF,$55,$AC...
09:51.198: Start writing frame
09:51.198: Send: $FF,$55,$AC
09:51.198: Finished writing frame
09:51.198: Start reading frame
09:51.207: Aldl frame header byte: $FF
09:51.207: Aldl frame length byte: $ 0
09:51.207: Recv: $FF,$55,$AC
09:51.207: Finished reading frame
09:51.207: Max232 interface detected OK

09:51.208: Scanning for heartbeat and chatter frames...
09:51.208: Waiting for Aldl bus silence of at least 10ms...
09:51.219: Start reading frame
09:51.318: Aldl frame header byte: $40
09:51.318: Aldl frame length byte: $58
09:51.318: Recv: $40,$58,$AE,$C1,$04,$F5
09:51.318: Finished reading frame
09:51.318: Start reading frame
09:51.318: Aldl frame header byte: $41
09:51.318: Aldl frame length byte: $63
09:51.341: Recv: $41,$63,$00,$00,$00,$60,$4D,$00,$00,$70,$F8,$25,$0 0,$00,$10,$1E,$F4
09:51.341: Finished reading frame
09:51.341: Start reading frame
09:51.353: Aldl frame header byte: $A8
09:51.353: Aldl frame length byte: $55
09:51.353: Recv: $A8,$55,$03
09:51.353: Finished reading frame
09:51.353: Start reading frame
09:51.353: Aldl frame header byte: $A9
09:51.353: Aldl frame length byte: $57
09:51.353: Recv: $A9,$57,$06,$00,$FA
09:51.353: Finished reading frame
09:51.353: Start reading frame
09:51.370: Aldl frame header byte: $20
09:51.370: Aldl frame length byte: $55
09:51.370: Recv: $20,$55,$8B
09:51.370: Finished reading frame
09:51.370: Start reading frame
09:51.370: Aldl frame header byte: $21
09:51.370: Aldl frame length byte: $58
09:51.376: Recv: $21,$58,$BC,$2E,$46,$57
09:51.376: Finished reading frame
09:51.376: Start reading frame
09:51.386: Aldl frame header byte: $D8
09:51.386: Aldl frame length byte: $55
09:51.386: Recv: $D8,$55,$D3
09:51.386: Finished reading frame
09:51.386: Start reading frame
09:51.406: Aldl frame header byte: $90
09:51.406: Aldl frame length byte: $55
09:51.406: Recv: $90,$55,$1B
09:51.406: Finished reading frame
09:51.406: Start reading frame
09:51.406: Aldl frame header byte: $91
09:51.406: Aldl frame length byte: $58
09:51.423: Recv: $91,$58,$18,$00,$00,$FF
09:51.423: Finished reading frame
09:51.423: Start reading frame
09:51.423: Aldl frame header byte: $A0
09:51.423: Aldl frame length byte: $55
09:51.423: Recv: $A0,$55,$0B
09:51.423: Finished reading frame
09:51.423: Start reading frame
09:51.423: Aldl frame header byte: $A1
09:51.423: Aldl frame length byte: $57
09:51.437: Recv: $A1,$57,$08,$00,$00
09:51.437: Finished reading frame
09:51.437: Start reading frame
09:51.437: Aldl frame header byte: $11
09:51.437: Aldl frame length byte: $5C
09:51.451: Recv: $11,$5C,$FF,$00,$4C,$1E,$26,$00,$00,$04
09:51.451: Finished reading frame
09:51.451: Start reading frame

[Jarrod]

I'm having the exact same problem with my VX and EFILive v4. Did this ever get resolved?

[Blacky]

In the Module definition for the VX vehicle data stream change the ID from $F5 to $F7.

Regards
Paul

[Mike :)]

Thanks. That works!!

I want to enable the LPG mapping in the ECM.

How do I do that?

Thanks in advance

Mike

[Blacky]

Thanks. That works!!

I want to enable the LPG mapping in the ECM.

How do I do that?

Thanks in advance

Mike

Sorry Mike, but I don't know. I presume you are trying to fit/enable LPG on a vehicle that was not factory fitted with LPG?

I would guess that the LPG switch on factory fitted Commodores would go to a specific pin on the PCM. Assuming non-LPG cars use the same PCM/operating system as the LPG vehicle then maybe you can replicate that on your PCM then you can switch LPG operating on/off.

Regards
Paul

[Mike :)]

Quick question. On a VX II using efilive 4, should the Airbag caution flash when I am logging data?

[Blacky]

Quick question. On a VX II using efilive 4, should the Airbag caution flash when I am logging data?
In order to maximise bandwidth on the ALDL data line, EFILive suspends other module's normal communication with the PCM. That causes those modules to request the instrument panel to illuminate their respective warning lamps. All it means is that the module has not been able to communicate with the PCM for some time. Once EFILive stops logging, or is disconnected, normal module communications is resumed. At that point, the modules will request that the instrument panel extinguish the various warning lamps.

Note: the factory scan tool (i.e. Tech 1) usually "simulates" the communications of the suspended modules to prevent warning lamp illumination. EFILive does not do that, instead it uses the full bus bandwidth for high speed logging.

Regards
Paul

[Mike :)]

Thanks

[Doctor Bob]

to convert it to LPG it needs to be reflashed with the correct software, its a completely different calibration.
needs to be done with a tech2

Rob

[Mike :)]

I take it there is no way of doing it without a Tech 2 ?

[Doctor Bob]

you could take the flash chip off & reprogram it with an lpg calibration, messy but effective.lol
what area are you in?
rob

[Mike :)]

Back from holidays, and having another look at the car :)

The holden VX II seems to have a quite different pcm. It seems to use the 28F010 chip. It would be SO NICE if it had ICSP (in circuit programming ability)

Does anyone have any experience with this PCM. Can it be reflashed through the aldl connector?
Seems the only reason Holden would use a flashable chip is - well so it would be easy to reflash it. I wonder if they put the pins on the aldl to reflash it. :)
Would be nice.

- Dr Bob, I am on the Gold Coast.

Do you have a file that I could flash to the 28F010 so it could run on LPG? -
I have a willen eprom programmer, but I'm not so keen on taking the chip out if I have to unsolder it. - they never seen to work the same.

I know I could just have it all done for me, but I like learning about all sorts of things. That is why I made my own PCB for my aldl link. - To much time - perhaps.

Here is my ALDL link info.

Thanks for your help.

Mike

[Doctor Bob]

the PCM can be programmed to LPG by any dealer with TECH2 through the diagnostic connector, ill have a look & see if i have an LPG bin here for you.

Rob