LOST JEEPS :: View topic - Got my Scangauge

Hi all,

I got my Scangauge in yesterday's mail. Thanks to Cowcatcher for reminding me about the $149 Linear Logic group buy!

As luck would have it, I would have an opportunity to test it out. I have a oil change at the dealer this morning at 10AM. I plugged in the MAF connector, then started up the KJ and plugged the Scangauge in. When I attempted to read the codes, it told me that no codes were stored, and the CEL remained on. I pressed SCAN several times but it kept telling me that no codes were stored. I also tried the same thing with the engine off, with no luck. Next, I checked to see if the Scangauge would read all the parameters of interest. Some basic things worked (voltage, RPM) but others stayed blank (coolant temp, intake temp, manifold pressure).

This is a real bummer. I recall there being some sort of fix for OBD-II compatibility, but given all the trips and reflashes our CRD has had, I would have expected that we were well beyond that. Has anyone had any experience with their Scangauge not reading/clearing codes and not reading all the sensors?

I need to head out shortly, but I can play with it some more when I get back. Thanks!

- Chris

Chris, you may need the TCM recall update I had to get. I had to pay for it because the stealership played dumb and just flash the TCM with the so call latest and greatest. I managed not to choke him and go to jail. :evil:

Now scanners work for me. Somehow my CRD wasn't recall for it but I found I had the bad flash and should had received the flash for free. GGRRRRR The more I think of this the more pissed I get.

My CRD wasn't recalled but still had the problem reading the scanner until I got an update. The stealership wouldn't tell me what update they did but it fixed the problem. Whatever the update was done it contain the recall. Two different scanners could not read codes and claimed it erase them when it didn't. If you can read and erase codes then you properly don't need the recall.

I have noticed this in the past as well recalling once when I stopped at a store to do some quick refreshment shopping during a trip and the 10 to 15 minutes of shutdown while I was in the store was not enough to get the SGII to again start reporting the data.

Author:	chrispitude [ Sat Jan 19, 2008 9:48 am ]
Post subject:	Got my Scangauge - some functions don't work
Hi all, I got my Scangauge in yesterday's mail. Thanks to Cowcatcher for reminding me about the $149 Linear Logic group buy! As luck would have it, I would have an opportunity to test it out. I have a oil change at the dealer this morning at 10AM. I plugged in the MAF connector, then started up the KJ and plugged the Scangauge in. When I attempted to read the codes, it told me that no codes were stored, and the CEL remained on. I pressed SCAN several times but it kept telling me that no codes were stored. I also tried the same thing with the engine off, with no luck. Next, I checked to see if the Scangauge would read all the parameters of interest. Some basic things worked (voltage, RPM) but others stayed blank (coolant temp, intake temp, manifold pressure). This is a real bummer. I recall there being some sort of fix for OBD-II compatibility, but given all the trips and reflashes our CRD has had, I would have expected that we were well beyond that. Has anyone had any experience with their Scangauge not reading/clearing codes and not reading all the sensors? I need to head out shortly, but I can play with it some more when I get back. Thanks! - Chris

Author:	gmctd [ Sat Jan 19, 2008 10:59 am ]
Post subject:
Plug the SGII in, then turn on the IGN and START the engine................

Author:	bugnout [ Sat Jan 19, 2008 11:52 am ]
Post subject:
Make sure you have the mode set to either auto or iso.

Author:	Cowcatcher [ Sat Jan 19, 2008 12:13 pm ]
Post subject:
Yup. plug in then start, then program for the type of motor, etc.

Author:	chrispitude [ Sat Jan 19, 2008 3:08 pm ]
Post subject:
I played with it some more on the way back from the oil change. Very odd... The Scangauge seems to default to VPW for me. A setting of auto doesn't work. Forcing it to ISO does work. I plugged it into a 2008 Grand Cherokee and it worked right out of the box without changing it to anything. Will play more later, need to work on the brake rotors for the car and get ready for a water heater swap... The EGT has a VERY noticeable effect on intake temperature. Ambient temperature was about 35F, intake temp without the EGR was about 60-70F, intake temp with the EGR was about 130-150F. - Chris

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Got my Scangauge - some functions don't work http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=28700	Page 1 of 1

Author:	BlackLibertyCRD [ Sat Jan 19, 2008 4:58 pm ]
Post subject:	Re: Got my Scangauge - some functions don't work
chrispitude wrote: Hi all, I got my Scangauge in yesterday's mail. Thanks to Cowcatcher for reminding me about the $149 Linear Logic group buy! As luck would have it, I would have an opportunity to test it out. I have a oil change at the dealer this morning at 10AM. I plugged in the MAF connector, then started up the KJ and plugged the Scangauge in. When I attempted to read the codes, it told me that no codes were stored, and the CEL remained on. I pressed SCAN several times but it kept telling me that no codes were stored. I also tried the same thing with the engine off, with no luck. Next, I checked to see if the Scangauge would read all the parameters of interest. Some basic things worked (voltage, RPM) but others stayed blank (coolant temp, intake temp, manifold pressure). This is a real bummer. I recall there being some sort of fix for OBD-II compatibility, but given all the trips and reflashes our CRD has had, I would have expected that we were well beyond that. Has anyone had any experience with their Scangauge not reading/clearing codes and not reading all the sensors? I need to head out shortly, but I can play with it some more when I get back. Thanks! - Chris Chris, you may need the TCM recall update I had to get. I had to pay for it because the stealership played dumb and just flash the TCM with the so call latest and greatest. I managed not to choke him and go to jail. Now scanners work for me. Somehow my CRD wasn't recall for it but I found I had the bad flash and should had received the flash for free. GGRRRRR The more I think of this the more pissed I get.

Author:	chrispitude [ Sun Jan 20, 2008 7:55 pm ]
Post subject:	Re: Got my Scangauge - some functions don't work
BlackLibertyCRD wrote: Chris, you may need the TCM recall update I had to get. I had to pay for it because the stealership played dumb and just flash the TCM with the so call latest and greatest. I managed not to choke him and go to jail. Now scanners work for me. Somehow my CRD wasn't recall for it but I found I had the bad flash and should had received the flash for free. GGRRRRR The more I think of this the more pissed I get. Hi BlackLiberty, Given that my Scangauge does work when I force it to ISO, do you think I still need this TCM update you're referring to? It would help to know more about what to ask for. I specifically asked my dealer if I was up to date on all flashes during the oil change, and they said it was. Fellow Scangauge owners - DIESELB, not DIESELA? Do either of the modes work with cruise control? I was planning on doing some controlled fuel economy testing at different speeds using cruise control, but I've seen some posts that cruise control confuses the Scangauge. - Chris

Author:	BlackLibertyCRD [ Sun Jan 20, 2008 11:12 pm ]
Post subject:
My CRD wasn't recalled but still had the problem reading the scanner until I got an update. The stealership wouldn't tell me what update they did but it fixed the problem. Whatever the update was done it contain the recall. Two different scanners could not read codes and claimed it erase them when it didn't. If you can read and erase codes then you properly don't need the recall.

Author:	Cowcatcher [ Mon Jan 21, 2008 4:32 pm ]
Post subject:
I had some interesting ScanGaugeII stuff happen this morning. I only have it reading MPG and coolant temp right now to see if that makes a difference on the disconnect (it doesn't seem to). It got down to about 8 degrees last night and it was about 15 when I rolled out. Coolant temp was 17 degrees. As I drove I notice that the SGII got up to 62 and then didn't move but the SGII was continuing to monitor MPG changes. I reached up and rolled that gauge through all it settings and back to coolant temp and it zeroed out. I stopped to refuel and when I powered back up my temp had returned. There had been some talk on another thread about the termination of data to the SGII being a synchronization issue so I thought I would play with that idea a little on Saturday. It quit reporting very soon after startup so I reached down and unplugged it from the port. I drove about 10 miles in 10 minutes then plugged it in. It recycled as it does on startup but it could not read the port. I have noticed thi in the past as well recalling once when I stopped at a store to do some quick refreshment shopping during a trip and the 10 to 15 minutes of shutdown while I was in the store was not enough to get the SGII to again start reporting the data.

Author:	Joe Romas [ Mon Jan 21, 2008 9:32 pm ]
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BlackLibertyCRD wrote: My CRD wasn't recalled but still had the problem reading the scanner until I got an update. The stealership wouldn't tell me what update they did but it fixed the problem. Whatever the update was done it contain the recall. Two different scanners could not read codes and claimed it erase them when it didn't. If you can read and erase codes then you properly don't need the recall. My Jan 06 crd had a F31 recall but not F37. When I had the F31 done they also did the F37 flash along with the BCM flash that had already been done. The tech told me once it's hooked up it gets ALL of the latest flashes

Author:	hawk521 [ Tue Jan 22, 2008 12:29 pm ]
Post subject:
Cowcatcher wrote: I have noticed this in the past as well recalling once when I stopped at a store to do some quick refreshment shopping during a trip and the 10 to 15 minutes of shutdown while I was in the store was not enough to get the SGII to again start reporting the data. FWIW, I purchased both a Scangauge II and a DashDyno SPD (similar OBD-II gauge) and both show the same behavior relative to data acquisition. At random intervals (longest when the OBD-II data rate is set SLOW) both devices stop responding after some time. Certain values (voltage, rpm, mph?, and sometimes the MPG values from the trip values) continue to function long after the other values quit updating. The ONLY thing that will reliably restore communications is to shutdown the engine for roughly a minute or more and restart. I've found no way to get the OBD-II communications re-established on either device other than an engine shutdown/wait/restart. If anybody has a better solution I'd love to hear about it (as would the folks at Scangauge and DashDyno I am sure.)

Author:	gmctd [ Tue Jan 22, 2008 1:50 pm ]
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No, you must do a power cycle - I'm thinking it's because the CAN system looks for nodes as it initializes, and if the SGII\equiv is there, it is accepted - however, as SGII is autonomous, it will demand info when it should be listening for it's turn (buss contention), and so loses it's turn - possibly someone could hash-out the EVIC's node (possibly it doesn't request data, only displaying specifically addressed data, just like your computer display monitor) to see why ECM\BCM\TCM\etc accepts SGII\equiv as family for a while, then treats it like a red-headed stepchild - it does work in pre-CAN OBD2 systems with single buss traffic, and in those CAN systems where the Bosch ECM and the stand-alone DCJ TCM is not demanding their time in court, as is evidenced in the KJ by the continued OBD2 displays after losing access to the critical data - or, it's gremlins, left over from AMC.............

Author:	chrispitude [ Thu Jan 24, 2008 1:16 pm ]
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It's a shame that scan gauges aren't robust on the CRD. This sure would be cool while towing: http://www.aeroforcetech.com/ - Chris

Author:	gmctd [ Thu Jan 24, 2008 2:32 pm ]
Post subject:
Rather significant that neither (Boschified) Dodge nor Jeep is mentioned, both DCJ products - the SRT10 and PT Cruiser are listed, which are gassers (patooie!)

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Author:	GoldCoastJeepers [ Fri Jan 25, 2008 3:57 am ]
Post subject:
I just purchased a scan guage2 but it hasnt arrived yet. Thanks for all the good information. I saw on another thread about the tranny having a melt down while using scan guage and cruise control. Is this just a few cases or a common thing?

Author:	bugnout [ Fri Jan 25, 2008 10:03 am ]
Post subject:
Don't think anyone has actually been able to make the conclusion that the sgii is causing a problem with the transmission. I believe that the author was asking if it was possible, and looking for other explanations.