OBDii Diagnostics with SCANNER - Kia Forum
 4Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 24 (permalink) Old 08-10-2011, 05:00 PM Thread Starter
Veteran
 
aquanaut20's Avatar
 
Join Date: Jun 2010
Location: Fraser Valley, BC, Canada
Posts: 2,696
Drives: Caribou, Otter, Buffalo
Gallery: 0
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 251 Post(s)

Thread Starter (Thread Starter)
OBDii Diagnostics with SCANNER

The screen shots are the basic required information of an OBDII compliant vehicle.
The screens will be noted left to right from top to bottom.

the screen with the Six dials contain;
Throttle .. Vacuum
Tachometer .. Speedo
Intake Air Temp .. Coolant Temp

The second screen contains the
air (MAF)......fuel (adjusted for 14/1 ratio, LTFT)
O2 voltage

The first dials of value are the IAT and the Coolant, they must be equal (ambient) when the engine is cold..
Second value (TPS), engine off, key on, throttle depressed slowly must register on gauge with a gradual sweep with no jitter/jumps.
On cold start the ECU checks the coolant temp and if <180* will initiate rich injection and open ISC (idle control), colder the value the richer the injection(longer pulse).

As the coolant temp increases the ECU commands the ISC and Injection pulse to reduce fuel/air, lowering RPM to +/-800.
On reaching coolant temp >170* the ECU obtains CL (closed loop) and allows the O2 S1 to control the data based on the amount of unburnt oxygen in the exhaust prior to CAT.
In order to achieve the stoic 14.1/1 AFR ratio, the ECU considers the coolant temp + MAF + O2 + TPS.

The second screenshot displays the MAF value. Once running the ECU adjusts the fuel (STFT) based on the collected data, the STFT fluctuates to quickly to be useful at this point so the LTFT is required The closer to 0.0 the better, +/-10 requires attention, and above serious investigation. The system will trigger a CEL somewhere close to 15% and above..

It is important to recognize the O2 values must switch rapidly and even top to bottom. If the readings are consistently High(rich mixture) or Low(O2 sensor is biased or sees an O2 leak) and if slow has become lazy..
It is important to know that the system cannot have any illegal air leaks, either post MAF>prior combustion chamber, or post combustion chamber>pre CAT. Hence the requirement for the Vacuum gauge. The S2 has no bearing on the fuel air ratio and the sensor only monitors the values exiting the CAT

Remember switching/replacing parts and guessing just wastes time and $$$.....

The trick is to get the engine working correctly.

Hope this has given you a start......Philip

Attached Thumbnails
Click image for larger version

Name:	Temp.jpg
Views:	711
Size:	94.2 KB
ID:	9150   Click image for larger version

Name:	obd O2.jpg
Views:	1273
Size:	77.4 KB
ID:	9151  
Sloppy likes this.

Last edited by aquanaut20; 08-10-2011 at 07:14 PM.
aquanaut20 is offline  
Sponsored Links
Advertisement
 
post #2 of 24 (permalink) Old 08-10-2011, 06:21 PM Thread Starter
Veteran
 
aquanaut20's Avatar
 
Join Date: Jun 2010
Location: Fraser Valley, BC, Canada
Posts: 2,696
Drives: Caribou, Otter, Buffalo
Gallery: 0
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 251 Post(s)

Thread Starter (Thread Starter)
Code reader vs Scanner

1st frame is part of my electronics cabinet
2nd frame, good old OBDI code reader <1996.
3rd frame, USB OBDII Scanner with laptop OBDII/CAN
4th frame, Combo OBD 1&2 code reader OBDII/CAN
5th frame, MS509 OBDII Scanner with live data and graphing capabilities..OBDII/EOBD/CAN
Attached Thumbnails
Click image for larger version

Name:	OBD Toolbox.jpg
Views:	637
Size:	108.7 KB
ID:	9152   Click image for larger version

Name:	OBDI.jpg
Views:	479
Size:	97.9 KB
ID:	9153   Click image for larger version

Name:	OBD BT comp.jpg
Views:	467
Size:	100.0 KB
ID:	9155   Click image for larger version

Name:	OBD 1&2.jpg
Views:	774
Size:	117.1 KB
ID:	9156   Click image for larger version

Name:	OBDII scanner 509.jpg
Views:	778
Size:	110.4 KB
ID:	9157  


Last edited by aquanaut20; 08-11-2011 at 12:01 PM. Reason: Thread merge
aquanaut20 is offline  
post #3 of 24 (permalink) Old 08-11-2011, 11:42 AM
Premium Member
 
1fastkia's Avatar
 
Join Date: Nov 2004
Location: Vermont
Posts: 6,134
Drives: 2015 Buick Verano "Leather Group", 2015 Kia Optima Hybrid
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)






2015 Buick Verano Leather Group
2015 Kia Optima Hybrid
1987 Mazda RX-7 GLX


The Old
99 Sephia, 01 Spectra, 05 Spectra, 08 Sportage

Last edited by 1fastkia; 08-11-2011 at 11:45 AM.
1fastkia is offline  
 
post #4 of 24 (permalink) Old 08-11-2011, 11:57 AM
Super Moderator
 
ron1004's Avatar
 
Join Date: Jun 2005
Location: USA
Posts: 8,347
Drives: 1999 Kia / 기아 Elan, 2017 Ford Edge Sport, 2015 Ford Mustang, 2008 Harley Nightrain
Gallery: 13
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 672 Post(s)
Garage

I have the older version of this one with the ElmScan5 interface module (old serial port) - I don't use it in my line of work, only hobbyist use.

My interface is much the same as this one, which is only $29 with software - http://scantool-net-llc.amazonwebsto...source=froogle
DarrenPEI likes this.

Quality and not quantity counts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Sig image is 500X100 at 11.7 kb

Last edited by ron1004; 08-11-2011 at 01:22 PM.
ron1004 is offline  
post #5 of 24 (permalink) Old 08-11-2011, 12:07 PM Thread Starter
Veteran
 
aquanaut20's Avatar
 
Join Date: Jun 2010
Location: Fraser Valley, BC, Canada
Posts: 2,696
Drives: Caribou, Otter, Buffalo
Gallery: 0
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 251 Post(s)

Thread Starter (Thread Starter)
I have several with RS232, that I used with an old XT, a Palm M105 and a Palm IIIX.

Much more cumbersome to setup and use...

My present toy is a BT dongle permanently installed in my daily driver and Torque on my Android smartphone... Immediate references, no setup, just tap the screen once.... Just love it...

Still go back to my Harrison/Palmer RS232 (once in a while), as I have extended OBDII and mode 6 capabilities..... Philip
Attached Thumbnails
Click image for larger version

Name:	OBDII old Harison.jpg
Views:	449
Size:	99.1 KB
ID:	9163   Click image for larger version

Name:	OBDII Palmx2.jpg
Views:	624
Size:	96.5 KB
ID:	9164  
DarrenPEI likes this.

Last edited by aquanaut20; 08-11-2011 at 12:28 PM.
aquanaut20 is offline  
post #6 of 24 (permalink) Old 11-11-2011, 03:27 PM
Super Moderator
 
ron1004's Avatar
 
Join Date: Jun 2005
Location: USA
Posts: 8,347
Drives: 1999 Kia / 기아 Elan, 2017 Ford Edge Sport, 2015 Ford Mustang, 2008 Harley Nightrain
Gallery: 13
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 672 Post(s)
Garage

Can this one display the ISC/IAC valve duty cycle?
Autel

http://www.tmart.com/Autel-MaxiScan-...ta_p88572.html

Quality and not quantity counts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Sig image is 500X100 at 11.7 kb

Last edited by ron1004; 12-22-2011 at 01:21 PM.
ron1004 is offline  
post #7 of 24 (permalink) Old 03-17-2015, 02:42 PM
Member
 
DarrenPEI's Avatar
 
Join Date: Feb 2015
Location: PEI Canada
Posts: 63
Drives: 2008 Kia Rio5. 2008 Honda CBR125R
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)

Post Code reader purchase

Hi all, I am considering buying a trouble code reader. I am looking for any advice or recommendations on this purchase. Are these code readers universal ie will it work on any brand of car? Also , what kind of price range do they sell for? Are there any brands of code reader that I should look for , or are they all fairly good?
I enjoy doing small repair/maintenance work on my car. Is this a good purchase?
Thanks,
Darren.
DarrenPEI is offline  
post #8 of 24 (permalink) Old 03-17-2015, 02:47 PM
Super Moderator
 
ron1004's Avatar
 
Join Date: Jun 2005
Location: USA
Posts: 8,347
Drives: 1999 Kia / 기아 Elan, 2017 Ford Edge Sport, 2015 Ford Mustang, 2008 Harley Nightrain
Gallery: 13
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 672 Post(s)
Garage

Quote:
Originally Posted by DarrenPEI View Post
Hi all, I am considering buying a trouble code reader. I am looking for any advice or recommendations on this purchase. Are these code readers universal ie will it work on any brand of car? Also , what kind of price range do they sell for? Are there any brands of code reader that I should look for , or are they all fairly good?
I enjoy doing small repair/maintenance work on my car. Is this a good purchase?
Thanks,
Darren.
You're better off buying a full scanner, not just a code reader.

Do a search here and on Google and you'll find Bluetooth ones for around $10 with free software.

https://www.kia-forums.com/1g-1994-20...scanner-2.html
DarrenPEI likes this.

Quality and not quantity counts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Sig image is 500X100 at 11.7 kb

Last edited by ron1004; 03-17-2015 at 02:52 PM.
ron1004 is offline  
post #9 of 24 (permalink) Old 03-17-2015, 03:44 PM
Member
 
DarrenPEI's Avatar
 
Join Date: Feb 2015
Location: PEI Canada
Posts: 63
Drives: 2008 Kia Rio5. 2008 Honda CBR125R
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)

Thumbs up Scanne

Thanks Ron. Much appreciated.
DarrenPEI is offline  
post #10 of 24 (permalink) Old 03-23-2015, 05:47 PM
Member
 
DarrenPEI's Avatar
 
Join Date: Feb 2015
Location: PEI Canada
Posts: 63
Drives: 2008 Kia Rio5. 2008 Honda CBR125R
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)

Obd2

Wow , saved a lot of money ( and grief )via this forum. I went to Canadian Tire today ( a large Canadian auto parts franchise ) looking for an OBD2 diagnostic scanner. They had two models , and the cheapest was 130$ CDN. The links provided here show me where to order the Maxiscan MS509 for a lot less. Thanks for the help.
Darren.
DarrenPEI is offline  
Reply


Top

  Kia Forum > Technical > Do it Yourself



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



  Similar Threads
Thread Thread Starter Forum Replies Last Post
OBDII scanner - UltraGauge MX tedburger 3G 2011 - 2016 Sportage 4 03-28-2016 01:55 PM
Lowest $$ for OBDII WiFi or BT aquanaut20 1G (1993 - 2002) Sportage 44 01-05-2016 08:41 AM
OBD scanner zlotvor 2G (2006 - 2011) Rio & Rio5 10 01-22-2010 05:58 AM
OBDII Question ajuk 2G (2006 - 2011) Rio & Rio5 0 04-02-2008 04:59 PM
99 Sportage without OBDII ??? bedemgrad 1G (1993 - 2002) Sportage 1 11-22-2007 07:43 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On