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G4+ Extreme CAN coms with Racepak IQ3

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Possibly the dash is not set up to use this data set? The engine speed, MAP and TPS should all work.

If someone wants to send us an IQ3 we are happy to test this ourselves.

Scott

hi Scott. I have a haltech iq3 you can have a play with. Are you in Christchurch? I could possibly get a interface cable to borrow.

Paul

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Hi Just following this up..... I have a Thunder and want to get it working with my Haltech IQ3. Were you able to get it sorted?

 

Would rather not have to change the dash later down the track if we cant get it working.

 

Thanks,

George

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On ‎26‎/‎01‎/‎2018 at 3:56 PM, blaine@carmenaperformance said:

I managed to get a Haltech dash running with the Link but it had to be sent back to Racepak and have the V1 Firmware flashed back onto it. Never had any luck with the V2 Firmware.

 

1 hour ago, Peter Andersson said:

So you have it working with older firmware? I have tryed for  2,5 year now haha

 

Blaine's Dash was a Haltech branded item that doesn't use a Vnet adapter.  His comment wouldn't apply to you since your dash isn't a Haltech branded version and you are using a Vnet adapter.

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Hi Adam, 

Sorry for Zombie posting this but had a question regarding the CAN structure and CAN IDs.

My friend makes a Gauge that was made for the Haltech originally.  Uses a CAN ID+N similar to the Race Tech above.

My question was, is there a way to address different CAN ID eg +1 +2 etc without needing to use a separate channel for each to specify the new CAN ID?

At the moment we are using 3 channels with separate CAN IDs and a user stream on each, then they have a single frame on each stream with the parameters.

We tried it with multiple frames on the one stream but the frames seemed to mix. So had to do above.

We managed to get this working with minor changes to his code but would be nice to get all the streams onto one channel, without needing to completely rewrite the audrino code.

 

Here is the gauge working with the multiple channels for a example.

Regards

Nick

2019-08-30 13_53_29-PCLink Engine Management - C__Users_nick_clewer_Google Drive_IS300_Scott's Map 0.png

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3 hours ago, wastegate said:

My friend makes a Gauge that was made for the Haltech originally.  Uses a CAN ID+N similar to the Race Tech above.

What you are describing is a often refereded to as a "sequential message", this is where you have a base ID and each subsequent frame uses an ID that is incremented by some amount.  At present the only way to do this in Link in how you have done it - that is assigning separate channels/streams for each message.  The problem with sequential is there is no "industry standard" for the increment.  Some use increments of 1, some use 8 or 10 or 16 or even mixtures of these...

Note that Haltech is not really sequential, their first few frames look like it, 361, 362, 363, etc, but after 363 it jumps to 368.  

 

3 hours ago, wastegate said:

We tried it with multiple frames on the one stream but the frames seemed to mix. So had to do above.

This is called compound or multiplexed messaging.  Note you need to have an identifier in one of the bytes for this to work.  You set that up in the "frame ID" box at the top of the streams tab.

If you are interested there are a few examples of Arduino sketches linked here on the forum if you want to see how others have decoded this type of message.  Most use the arduino "switch/case" statement to interperet the frame into different channels depending on the frame ID.

Another option is to use the preconfigured dash2pro stream which uses 3 sequential ID's.  If there are any channels missing that you want you can just add another custom stream on the end.

 

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We have a Haltech IQ3 but basically put the Haltech channels to one side and never used them and we actually helped Racepak in making the first CANBUS EFI interface for the G4.  It was previously basically a serial interface so you couldn't run the dash and have the USB tune cable in at the same time which is painful when you're on the dyno !!   This was all a few years ago when the G4 didn't have customisable CANBUS inputs/outputs.

Anyhow I digress.   What I'm after now is that we want to display some more channels on our IQ3 from an external CANBUS source that isn't from the G4+ and I wondered about using the built in Haltech channels as others have mentioned above.    I know they wouldn't necessarily have the right descriptions in the Racepak datalink software, but I don't really mind as long as I can get the data to display on the IQ3 since I can change the description there...…..

Just wondering if anyone ever got the Haltech CANBUS thing sorted ??   If not then I'll be happy to send my Haltech IQ3 and G4+ to you guys to see if you can figure it out ?    Also not sure what will happen if it see's 2 CANBUS streams (one from Haltech and one from Link ECU interface) but I think it should be OK...…. it's just a matter of that "handshaking" that someone mentioned that the CANBUS on the Haltech side needs.   The CANBUS device I have that's generating the data isn't configurable so I'm not going to be able to adjust that to do anything different, but I guess I can get the G4+ to read the CAN stream from my device and then output it in whatever format the Haltech wants to see ?

Any advice is much appreciated.   I know enough to be dangerous with this stuff, but it's not my daily bread and butter so not sure how complex what I'm asking is.

Fraser

Just in reply to the original posted question also...…….. the Racepak IQ3 Logger doesn't have any CANBUS capability so you need to purchase the Universal interface or a specific ECU interface to get the data to your dash.   The IQ3S has a build in CANBUS interface like the Haltech does so you only need a $ 50 cable to connect it up and you're all go.   You only need the more expensive interface if you're using the IQ3 Logger dash.

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7 minutes ago, Fraser Simpson said:

We have a Haltech IQ3 but basically put the Haltech channels to one side and never used them and we actually helped Racepak in making the first CANBUS EFI interface for the G4.  It was previously basically a serial interface so you couldn't run the dash and have the USB tune cable in at the same time which is painful when you're on the dyno !!   This was all a few years ago when the G4 didn't have customisable CANBUS inputs/outputs.

Anyhow I digress.   What I'm after now is that we want to display some more channels on our IQ3 from an external CANBUS source that isn't from the G4+ and I wondered about using the built in Haltech channels as others have mentioned above.    I know they wouldn't necessarily have the right descriptions in the Racepak datalink software, but I don't really mind as long as I can get the data to display on the IQ3 since I can change the description there...…..

Just wondering if anyone ever got the Haltech CANBUS thing sorted ??   If not then I'll be happy to send my Haltech IQ3 and G4+ to you guys to see if you can figure it out ?    Also not sure what will happen if it see's 2 CANBUS streams (one from Haltech and one from Link ECU interface) but I think it should be OK...…. it's just a matter of that "handshaking" that someone mentioned that the CANBUS on the Haltech side needs.   The CANBUS device I have that's generating the data isn't configurable so I'm not going to be able to adjust that to do anything different, but I guess I can get the G4+ to read the CAN stream from my device and then output it in whatever format the Haltech wants to see ?

Any advice is much appreciated.   I know enough to be dangerous with this stuff, but it's not my daily bread and butter so not sure how complex what I'm asking is.

Fraser

How old is your Haltech device?  For the last 3 years or so they have been selling the IQ3S which has completely user configurable CAN.  Very painful to configure but you should be able to do whatever you like.

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