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Old 09-26-2013, 05:04 PM   #1
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code reader scanner

Will a scan tool work if there is no check engine light on.. Will it tell you what's up or do you need a checK engine light before it will give a code
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Old 09-26-2013, 05:18 PM   #2
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Will a scan tool work if there is no check engine light on.. Will it tell you what's up or do you need a checK engine light before it will give a code
There's different grade scanners that do different tasks. If you plan to use a tuner type code reader/clearer that utilizes the port under your dash board then no, it will only find a sensor throwing a bad code. If you get the expensive real deal scanner/diagnostic scanner that plugs in to your diagnostic slot under the hood then yes, it runs the engine through rpms, checks sensor readings, and can even tell you if your running to ritch lean etc..
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Old 09-26-2013, 05:20 PM   #3
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Some, generally the more expensive units, will let you observe "real time" PIDS (Parameter IDs, operating values) in a data logging mode; most all will let you view pending DTCs (Diagnostic Trouble Codes), potential issues that have not yet been classed as "permanent" and set the SES lamp...
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Old 09-26-2013, 05:26 PM   #4
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Will a scan tool work if there is no check engine light on.. Will it tell you what's up or do you need a checK engine light before it will give a code
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Old 09-26-2013, 05:30 PM   #5
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Some, generally the more expensive units, will let you observe "real time" PIDS (Parameter IDs, operating values) in a data logging mode; most all will let you view pending DTCs (Diagnostic Trouble Codes), potential issues that have not yet been classed as "permanent" and set the SES lamp...
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Old 09-26-2013, 05:38 PM   #6
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That looks like a one from vato zone
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Old 09-26-2013, 06:21 PM   #7
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That looks like a one from vato zone
Vato Zone?

Is that the one in east Salinas?
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Old 09-26-2013, 06:37 PM   #8
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Haha you already know
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Old 09-26-2013, 06:54 PM   #9
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hahaha not sure I found it in the shop at work. will this work for my car and will I need to have check engine light before its of any use to me or will it give me codes if anything is going on ....
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Old 09-26-2013, 07:03 PM   #10
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We need more to go on, for instance what brand/model is it?
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Old 09-26-2013, 07:13 PM   #11
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Why not plug it up and see?... If no codes pop up, it needs CEL. If 1 does, Happy Hanukkah!
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Old 09-26-2013, 08:57 PM   #12
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Bluetooth OBD2 reader from Amazon- $30

Torque App - $5

Total $35 for a scanner tool that reads and clears codes and a PID monitor of real time data, plus it data logs, and a bunch of other plug ins.

Best money I ever spent!
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Old 09-26-2013, 09:26 PM   #13
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One caveat here; OBD2 data logging from our cars is limited (max) to 10 to 12 PIDs per second.

This is not especially dynamic, and the available PIDs (to be frank) are not worth much--to be honest I have never found much of anything that can be logged via the OBD2 port (on a New-Edge GT) to be worth a whole lot if anything--most tuners, if they are honest, will tell you the same thing. This is the big problem with mail order/email tunes--even if based on feedback--the OBD2 datalogs are not worth a whole lot.

OBD2 is OnBoard Diagnostic version 2, with "diagnostic" being the key word. It was never intended or designed to be a fully capable performance tuning system.

All you really need is to get a wideband O2 system, a good tune editor, and gain a good knowledge of what pinging--and more importantly "getting close to pinging"--sounds like...
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Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
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Old 09-26-2013, 09:45 PM   #14
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Quote:
Originally Posted by cliffyk View Post
One caveat here; OBD2 data logging from our cars is limited (max) to 10 to 12 PIDs per second.

This is not especially dynamic, and the available PIDs (to be frank) are not worth much--to be honest I have never found much of anything that can be logged via the OBD2 port (on a New-Edge GT) to be worth a whole lot if anything--most tuners, if they are honest, will tell you the same thing. This is the big problem with mail order/email tunes--even if based on feedback--the OBD2 datalogs are not worth a whole lot.

OBD2 is OnBoard Diagnostic version 2, with "diagnostic" being the key word. It was never intended or designed to be a fully capable performance tuning system.

All you really need is to get a wideband O2 system, a good tune editor, and gain a good knowledge of what pinging--and more importantly "getting close to pinging"--sounds like...
I hear you for sure, definitely not as many pids as I'd hoped. It's got a few that are useful to help some minor trouble shooting, i.e. I was able to monitor stft and o2 volts to diagnose a lazy o2 sensor. Plus I can monitor engine coolant temp and set alarms to go off in case I break a certain threshold, living in the desert where afternoon temps peak in the 115 range during the summer this is good for me to monitor.
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Old 09-27-2013, 01:29 AM   #15
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I checked the scanner to see what model it is and all I can find on it is EQUUS 0303 INNOVA
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Old 09-28-2013, 10:49 AM   #16
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plugged it in and ran for codes, no codes were found. however the yellow light came on... apparently on this specific scanner it has a green,yellow and red light. green means you will pass all emission tests, yellow means a potential issue and red is prob bad
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