OBD "Problem Cars"

Discussion related to external OBD and other sensors
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Harry
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Re: [FAQ] OBD "Problem Cars"

Post by Harry »

Hi,

Your Golf does not support the MAP 010B PID delivering the boost level / pressure. LapTimer relies on this PID to be able to display / record boost level. 0101 is used to detect Otto or Diesel engines and is not related to the boost topic. The switch to turn boost level display on or off in LapTimer's video overlay is the Intake vehicle setting defined in your Golf's Vehicle Details. Switching it to "Naturally Aspired" will turn off the boost level display and is probably the best solution as long as MAP is not available.

I have an item on my list to calculate MAP from MAF and other parameters in one of the next LapTimer versions. MAF seems to be missing too by the way, please check you have not excluded these PIDs using the "Exclude PIDs" Expert Settings. For your Golf it should not be necessary to exclude any PIDs as it seems to have a clean OBD implementation.

Your RPM values in the above snapshot look o.k. (didn't check against the specs of your car, but they are sound). The comment in youtube states the rpms are wrong by 1000 rpm? That would be very strange and would mean wrong values are delivered by your ECU.

- Harry
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Ginola
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Re: [FAQ] OBD "Problem Cars"

Post by Ginola »

Hi There, Just to say thank you for an awsome app ;) :ugeek:

I'm having problems with my UKspec 2005 Impreza STI and OBD2 data from it, The sensor is a ELM327 wifi unit, phone is iPhone 4s, I have the sensor working perfectly with dash command (including RPM, Speed, manifold pressure, AFR, Lambda, Intake temp, fuel flow, MAP and Maf etc.. this did take some adjustment of latency settings to get it work properly but for some reason I can't get it to work at all in Laptimer?

I have had a quick play with the expert settings, and tried a few of the options for different Throttle PID's but cant seem to get it to work, I have noticed a flashing red light above the rpm meter in gps monitor/lap view.. the following PID's are detected..

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Many thanks in advance

Dave.
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Harry
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Re: [FAQ] OBD "Problem Cars"

Post by Harry »

Please make sure the "Exclude PIDs" field in Expert Settings is blank.

- Harry
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Ginola
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Re: [FAQ] OBD "Problem Cars"

Post by Ginola »

Harry wrote:Please make sure the "Exclude PIDs" field in Expert Settings is blank.

- Harry
Hi Harry,

Thanks for the speedy response,

I have no PID's in the exclude list.. settings look like this..

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Kind regards

Dave.
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Harry
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Re: [FAQ] OBD "Problem Cars"

Post by Harry »

O.k., so that's fine. Please follow the instructions here to check what is going on: viewtopic.php?f=20&t=1500

- Harry
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Ginola
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Re: [FAQ] OBD "Problem Cars"

Post by Ginola »

Harry wrote:O.k., so that's fine. Please follow the instructions here to check what is going on: viewtopic.php?f=20&t=1500

- Harry
Thank's for taking a look Harry, log files sent (Ginola - Subaru Impreza STI UK 2005)

I forgot to mention in the e-mail sent but believe I did in the post above, the OBDII Connector is a Generic ELM327 Wifi Unit

I have a log file recorded with Dash Command immediately after e-mailing if that is of any help let me know.


Dave.
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Harry
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Re: [FAQ] OBD "Problem Cars"

Post by Harry »

Thanks Dave for sending.

Code: Select all

S: "41 54 5A 0D 'ATZ\r'" (4)
R: "0D 0D 45 4C 4D 33 32 37 20 76 31 2E 35 0D 0D 3E '\r\rELM327 v1.5\r\r>'" (16)
S: "41 54 57 53 0D 'ATWS\r'" (5)
R: "41 54 57 53 0D 0D 0D 45 4C 4D 33 32 37 20 76 31 2E 35 0D 0D 3E 'ATWS\r\r\rELM327 v1.5\r\r>'" (21)
S: "41 54 45 30 0D 'ATE0\r'" (5)
R: "41 54 45 30 0D 4F 4B 0D 0D 3E 'ATE0\rOK\r\r>'" (10)
S: "41 54 41 54 30 0D 'ATAT0\r'" (6)
R: "4F 4B 0D 0D 3E 'OK\r\r>'" (5)
S: "41 54 53 54 46 46 0D 'ATSTFF\r'" (7)
R: "4F 4B 0D 0D 3E 'OK\r\r>'" (5)
---------  mode: 1 pid: 0x00 [PID01-20]
S: "30 31 30 30 0D '0100\r'" (5)
R: "43 41 4E 20 45 52 52 4F 52 0D 0D 3E 'CAN ERROR\r\r>'" (12)
S: "41 54 5A 0D 'ATZ\r'" (4)
From the log you can see the dongle sends a reply CAN ERROR when LapTimer requests mode: 1 pid: 0x00 [PID01-20]. This means there is either a connection issue between the dongle and your car, or the dongle hasn't implemented the mode 1 pid 0 request (which is mandatory). It is possible other apps do not request that PID, but LapTimer requires it to optimize update rates.

Please disconnect / reconnect the dongle first to force a reset. In case that doesn't help you need to get a different dongle (my recommendation is always to opt for a genuine device - check http://www.gps-laptimer.de/Compatibility.html "OBD II Configurations"). You can exclude 0100 from PIDs requested but this will result in very bad update rates at best.

- Harry
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Ginola
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Re: [FAQ] OBD "Problem Cars"

Post by Ginola »

Thanks for taking a look for me Harry,

I tried both methods but could not get it to work, excluding still revealed no data at all coming through..

I will look at selling this unit on and acquiring a compatible one before my next trip to Spa and the Ring in October,

many thanks for your help

Dave.
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Re: [FAQ] OBD "Problem Cars"

Post by Ginola »

my GoPoint BT1 arrived today, and the device works brilliantly thank you once again Harry for your help.
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Re: OBD "Problem Cars"

Post by will010100 »

Hello Harry,

My phone is collecting the OBDII RPM data from the car, and I can see it on my phone as I drive. The throttle and speed are not on the screen. Furthermore, when I try to overlay it, the RPM data are not captured in the video.

I read through the various threads on OBDII PID issues. I selected and deselected the "Auto Exclude PIDs," but I am unable to resolve the problem.

I have the following hardware/software:
iPhone 5 v7.0.6
Laptimer version 17.5.5
GoPoint (current firmware as of today)

What can I send you to help?

Kind regards,
Will
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