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How to analyze/scan OBD Live Data? #4634311
01/14/18 08:34 AM
01/14/18 08:34 AM
Joined: Dec 2016
Posts: 2,204
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,204
VA
So I don't have a OBD tool, but planning to rent one from an autoparts store.

Was wondering if I'll be able to analyze/scan live data for temp sensors? Since car is throwing CEL code P0128 and want to make sure it's not a sensor and indeed it's T-stat. Before I order parts.

Does anyone has any input for finding a loaner which can do it?

Thank you.


2006 Civic EX 202K/AT
2006 Acura TSX 180K/AT
Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634329
01/14/18 08:49 AM
01/14/18 08:49 AM
Joined: Nov 2011
Posts: 1,248
Lyndhurst NJ
Audios Offline
Audios  Offline
Joined: Nov 2011
Posts: 1,248
Lyndhurst NJ
Youll probably get some actual values, but your temp gauge should tell you the whole story, if its not reaching operating temp within a reasonable amount of time, its the thermostat.


2002 VW Golf TDI-Mobil 1 5/40 TDT
2007 Mercedes GL320 CDI Fuchs 5/40 GT Pro XTL
2005 BMW M3 BMW Twin Power 10/60
2003 BMW M5-Fuchs 5/40
1998 BMW M3/4/5 Fuchs 5/40
Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634332
01/14/18 08:51 AM
01/14/18 08:51 AM
Joined: Dec 2014
Posts: 1,684
'murica
Ethan1 Offline
Ethan1  Offline
Joined: Dec 2014
Posts: 1,684
'murica
Yeah, call the parts store and ask if their scan tool can do it. shrug

Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634336
01/14/18 08:53 AM
01/14/18 08:53 AM
Joined: Apr 2005
Posts: 600
NE Ohio
knerml Offline
knerml  Offline
Joined: Apr 2005
Posts: 600
NE Ohio
I don't know about rental scanners.

But, if you have an Android or iPhone smart phone or tablet, you can just order a WiFi or Bluetooth scan tool for just over $20 on Amazon. Then download the free Torque Lite app, and you'll be all set.

App displays real time sensor data.


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W20 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: How to analyze/scan OBD Live Data? [Re: Ethan1] #4634347
01/14/18 08:58 AM
01/14/18 08:58 AM
Joined: Aug 2010
Posts: 5,940
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,940
Champlain/Hudson Valley
Here's another example where year, make, model, trim level, mileage and possibly even modifications would be helpful.
Really, there should be a checklist at the top of the posting form.
Even someone including, "It's the car in my signature", is helpful.

Be aware of the fact that the expected lifespans of the stat and coolant temperature sensors are fairly close.
That's not an argument for being wasteful.
It is efficient to open a system only once, spill coolant on the ground only once, burp and top-off only once.

Last time I checked it was chilly out.


Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634373
01/14/18 09:15 AM
01/14/18 09:15 AM
Joined: Dec 2016
Posts: 2,204
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,204
VA
I am sorry, should have been clear.

It's a 2006 Honda Civic Coupe Ex with AT and 198K and I believe T-stat is still original.

Last weekend on the highway cruising at 65-70mph I noticed temp gauge was showing just 2-3 dots on temp gauge, but it was brutally cold too.


2006 Civic EX 202K/AT
2006 Acura TSX 180K/AT
Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634448
01/14/18 10:13 AM
01/14/18 10:13 AM
Joined: Feb 2011
Posts: 260
Midwest
stevejones Offline
stevejones  Offline
Joined: Feb 2011
Posts: 260
Midwest
At 198K with a believed to be original t-stat; I'd skip the proper diagnostics, load the parts cannon with a new part & pull the trigger. Logic being it's a cheap part, presumably easy to replace, and should've been done already for peace of mind.

Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634481
01/14/18 10:36 AM
01/14/18 10:36 AM
Joined: Sep 2013
Posts: 10,683
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,683
Indiana
Not sure what your code means, but this is just a shot in the dark.

A failed temp sensor should say something like "ECM temp sensor open circuit." IMO, you don't need live data for this although seeing the actual temperature would be interesting at least to me.

If you have a volt meter, you could check your engine temp sensor's volts. You should also check the ohms during a cold and hot engine. If you don't have a volt meter, HF usually has their basic models for free with a coupon and small purchase.


03 Jeep WJ 4.0 202k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 186k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 153k Synpower 5w30 Supertech ST3980 (Ecore)

Re: How to analyze/scan OBD Live Data? [Re: knerml] #4634487
01/14/18 10:42 AM
01/14/18 10:42 AM
Joined: Mar 2014
Posts: 3,478
NJ
Leo99 Offline
Leo99  Offline
Joined: Mar 2014
Posts: 3,478
NJ
Originally Posted By: knerml
I don't know about rental scanners.

But, if you have an Android or iPhone smart phone or tablet, you can just order a WiFi or Bluetooth scan tool for just over $20 on Amazon. Then download the free Torque Lite app, and you'll be all set.

App displays real time sensor data.


Every car guy/gal should have this.


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles (RIP)
2004 Corolla 125,000 miles
2004 Rav4 370,000 miles
2015 Camry 70,000 miles
Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634488
01/14/18 10:43 AM
01/14/18 10:43 AM
Joined: Dec 2016
Posts: 2,204
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,204
VA
Thanks very much for your helpful input. Yes, I do have a voltmeter and any idea how much voltage should I be expecting at each sensor?

I definitely like your idea about ECM code and clearly this code seems to be related to T-stat smile


2006 Civic EX 202K/AT
2006 Acura TSX 180K/AT
Re: How to analyze/scan OBD Live Data? [Re: Leo99] #4634597
01/14/18 11:53 AM
01/14/18 11:53 AM
Joined: Aug 2008
Posts: 3,231
Where the wind comes sweepin'
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,231
Where the wind comes sweepin'
Originally Posted By: Leo99
Originally Posted By: knerml
I don't know about rental scanners.

But, if you have an Android or iPhone smart phone or tablet, you can just order a WiFi or Bluetooth scan tool for just over $20 on Amazon. Then download the free Torque Lite app, and you'll be all set.

App displays real time sensor data.


Every car guy/gal should have this.


They can be bought for less than $20 too. I think the last one I bought was the VeePeak brand and it was a whopping $12 delivered.

Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634635
01/14/18 12:25 PM
01/14/18 12:25 PM
Joined: Jan 2008
Posts: 10,972
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,972
OH
Originally Posted By: maverickfhs
Last weekend on the highway cruising at 65-70mph I noticed temp gauge was showing just 2-3 dots on temp gauge, but it was brutally cold too.


Leave the heat off for the first 15 minutes of the drive and see if the temp comes up any faster. If the heat is blasting away it can keep the temp indicator buried pretty low. If you can't handle that just put the heater on the first setting or low. Obviously if it's snowing, frosted windshield, etc where having the heat/defrost is a safety issue then have it on the high setting. Please report back, thank you.

Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634716
01/14/18 02:05 PM
01/14/18 02:05 PM
Joined: Jun 2003
Posts: 5,951
Illinois
SHOZ Offline
SHOZ  Offline
Joined: Jun 2003
Posts: 5,951
Illinois
Bad ECT should default to the fan on when the key is in run, cold engine and no ac on.

P0128 Thermostat OBD-II Trouble Code Re...t OBD-Codes.com

P0128 Thermostat OBD-II Trouble Code Technical Description Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Brands of vehicles that may see this code include but are not limited to Pontiac, Toyota, Mazda, Dodge, Chevrolet, Honda, Jeep, Ford, VW, etc. Although generic, the specific repair steps may vary depending on make/model. This means that the engine's powertrain control module (PCM) has detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. Often, the intent of the P0128 code is to indicate a faulty thermostat (likely stuck in the open condition)

Read more at: https://www.obd-codes.com/p0128
Copyright OBD-Codes.com


2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual
Re: How to analyze/scan OBD Live Data? [Re: maverickfhs] #4634720
01/14/18 02:07 PM
01/14/18 02:07 PM
Joined: Dec 2016
Posts: 2,204
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,204
VA
Thanks very much SHOZ. For now, I am going to throw an OEM t-stat and then take it from there thumbsup


2006 Civic EX 202K/AT
2006 Acura TSX 180K/AT

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