Ahsai

POssible since most of them ship from Hong Kong or China.
How about this one?

Ahsai

Pls see post #21.

The key is to find the right app. Apple apps are OK for people interested in track data overlay, hp, mpg, etc. but they are pretty weak in diagnostic capbility. Torque is extremely good at Diagnostic capability. It even supports some extended PID like Toyota hybrid, Mazda, etc.

Neto

Just get el cheapo from ebay for $16 shipped.. lol I have one and I have always been able to read codes and erase them. Simple enough.

alpine003

The way I understood it the OP just wanted something to clear cel and nothing more. If you want more like you have stated then yes, a simple scanner like this will not meet your needs.

Longtail996

As always, a wealth of very appreciated info, think I'll trade out one of the iPhones for a 'droid & get the App, thanks!

Ahsai

Before you do that, take a look at this one
http://www.scantool.net/obdlink-mxwf.html
Its $100 now. I peordered one at $70 at the initial Kickstart project phase. Still waiting for it to be delivered.

It is a WiFi based scanner which works on both Android, iOS and Windows. The beauty of this is it works with OBDFusion, which provides similar capability as Torque (real-time sensor reading, modes 5&6) and it also works with Torque on Android phones, all via WiFi.

https://itunes.apple.com/us/app/obd-...650684932?mt=8

At $100, it's less attractive but if you don't want to get stuck with a single OS, this is a good albeit expensive option at this price.

Longtail996

The reviews for that App are outstanding, I'll get going that way as I have too many devices and vehicles around here to get locked in to a single OS, thanks again for sharing your knowledge.

Ahsai

Anytime

I haven't read the reviews of the app but I'm using its Android version and I like it. Torque has a little bit better user interface but if you want mode 5&6 data, this is the ONLY iOS app that does it.

Colorado Bob

I recently purchased a 1999 C4 Cab with the full Fabspeed performance package. I drove it from Arizona to Colorado and the CEL came on about half way home. I brought it in to the local Porsche dealer for an oil change and a full checkup and they said the O2 sensors were weak and they would be $1400 to replace. They suggested leaving them for now. Today I went in for a Colorado emissions check and they found a bad gas cap and the CEL light came on again. I bought a $50 OBD2 pocket scanner at the local auto parts store and it read P1276 which is the O2 sensors. I erased all error codes and all is good now.

Cuda911

Update: 5/8/2014:

OK, so my CEL came on again today. I ordered the "Super Mini ELM327 V1.5 OBD2 OBD-II Bluetooth CAN-BUS" which arrived a couple weeks ago, and today I installed the Torque Pro app.

The scanner comes with a mini-CD. My computer doesn't like it... when I try to load the CD, the computer just keeps spitting it back out. There were no paper instructions of any sort, so I have no idea what is on the CD.

Anyway, I was able to get the following fault codes (see below).

Ahsai,

1. How did you get those screen captures from the phone? I went old-school, and used a camera to take a picture of my phone screen.

2. I couldn't figure out how you got into those screens that plot " precat and postcat O2 sensor voltages in time."

3. I can't figure out how to clear the codes.

4. Is it OK to just leave that scanner plugged in all the time?

Again, I have no instructions at all, so maybe the CD would provide elucidation, if the CD could actually be read.

Here's the info I obtained:

Ahsai

1. Screen capture on Samsung phones see here http://www.androidcentral.com/how-ta...g-galaxy-s-iii Based on your Mode 6 tests, they both failed (marginally) so the only remedy is a set of new cats I suggest you show the screenshot to Fabspeed and ask for their warranty.

2. On the home screen of Torque, click on the "Realtime Information" icon then flip to an empty page. Then touch and hold the screen to get the "Add display" option. Then select "Graph" and one of the O2 sensor voltage. Repeat so you cover all 4 sensors. With the mode 6 test results above, I expect to see the postcat sensors follow the precat sensors swinging (for good cats, the postcat will stay at 0.6-0.7v steady during idle)

3. Go to home screen of Torque and click the "Fault Codes" icon. Then click on the "menu" on your phone (should be at the lower right bottom corner). Then select "Clear faults on ECU"

4. No, it will drain the battery

BTW, under the "Realtime Information" icon, one of the pages should be "Emission Readiness", can you read that as well?

Ahsai

BTW, those mode 6 tests don't run every drive cycle so if you clear the codes, it will take some time and multiple drive cycles before the tests are run. The tests may or may not fail because they are right at the failure boundary as indicated by the allowed value (max) and measured value (current). If one of both of the test fail, the CEL will be tripped.

Cuda911

Thanks for the quick reply! I'm going to try and take the car into the shop tomorrow where the Fabspeed stuff was installed. Good info about the multiple drive cycles.

One more Q for now: What the heck is on that CD? Do I need it?

Ahsai

Anytime! I never bother to check that CD. I doubt there's anything useful that your laptop can do but your phone can't. Btw, my car runs those tests probably once or twice a week and I drive it everyday. Every time you will get a little diff results with the tests but the measured vales should be around the same ball park numbers.

Cuda911

OK, I'll keep you guys posted with how this pans out. Oh! I forgot about that palm-swipe thing for the screen shot capture on Galaxy III. I used it a year or so ago, then forgot all about it.

Pretty amazing what an $8 scan tool and a $5 app can do. Who would have guessed a few years ago that I could diagnose my car's cats from my telephone. Alexander Graham Bell would be proud.