Will logging find problems?
08 October 2016, 05:40 AM
#1
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Will logging find problems?
Hey all this is a silly question..... Would logging show any problems with the engine? Like leaking injector(s) or a bad MAF?
Car is a MY98 gf8 ej20k.
Car is a MY98 gf8 ej20k.
08 October 2016, 09:02 AM
#2
yes of course and is a very useful tool in diagnosing problems. leaking injectors will affect your air fuel readings and your fuel trims and also your maf readings as well. regarding the maf try unpluging it and see what happens. if the engine ticks over smoother there could be a problem with the maf. you could try cleaning the maf sensor with carb/brake cleaner but do it carefully as the sensor is a thin piece of wire.
08 October 2016, 02:29 PM
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yes of course and is a very useful tool in diagnosing problems. leaking injectors will affect your air fuel readings and your fuel trims and also your maf readings as well. regarding the maf try unpluging it and see what happens. if the engine ticks over smoother there could be a problem with the maf. you could try cleaning the maf sensor with carb/brake cleaner but do it carefully as the sensor is a thin piece of wire.
08 October 2016, 05:21 PM
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08 October 2016, 07:30 PM
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Yes running standard ECU, my car has hard starts during first startup in the morning, high idle when cold outside even after achieving operational temps. The high (1100rpm) idles happens randomly, if I shut off and restart the engine it will go back to 800rpm.
Idle doesn't fluctuate.
08 October 2016, 07:59 PM
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I don't know anything about tuning so I doubt I'll be able to read the logs. What would I be looking for?
08 October 2016, 08:30 PM
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Awesome, yes I printed and read the manual few times. I know how to log, just not sure what to make of the info. I will install it after work, log and see if I can view it.
Thanks!
08 October 2016, 08:55 PM
#13
Cool.
You will get the hang of things when you start using it.
Don't log everything at once as this slows down the sample rate.
Example,if your working on boost log Load,TP,WGDC,Manifold pressure,rpm,vehicle speed.
Working on timing log Load,actual timing,IAM,Knock events,TP,speed,coolant temp,IAT(if you have one fitted)
By the way,I'm still in the learning stages myself so don't take my info/advice as gospel lol
If you've read the manual a couple of times then I would advise reading it a few more times,and refer back to it when you are working on different parts of the map.
Good luck mate,let us know how you get on
Ideally you will need detcans,Wideband AFR gauge,boost gauge at the minimum.
You will get the hang of things when you start using it.
Don't log everything at once as this slows down the sample rate.
Example,if your working on boost log Load,TP,WGDC,Manifold pressure,rpm,vehicle speed.
Working on timing log Load,actual timing,IAM,Knock events,TP,speed,coolant temp,IAT(if you have one fitted)
By the way,I'm still in the learning stages myself so don't take my info/advice as gospel lol
If you've read the manual a couple of times then I would advise reading it a few more times,and refer back to it when you are working on different parts of the map.
Good luck mate,let us know how you get on
Ideally you will need detcans,Wideband AFR gauge,boost gauge at the minimum.
Last edited by ossett2k2; 08 October 2016 at 08:57 PM.
29 October 2016, 02:55 PM
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I installed the ESL ecu. To get an accurate reading, to I log doing wide open throttle pulls? or Just regular driving?
29 October 2016, 03:27 PM
#16
You can tune idle and cruise more accurately if you switch off closed loop,this way you can line up your AFR with the wideband and get things a lot closer so closed loop isn't working as hard to make changes.
And WOT pulls to get your power runs tuned.
CTS is coolant temp sensor,you can log that data and will show if its faulty,but sounds like you're having fuel pump issues over on your other thread.
And WOT pulls to get your power runs tuned.
CTS is coolant temp sensor,you can log that data and will show if its faulty,but sounds like you're having fuel pump issues over on your other thread.
29 October 2016, 03:31 PM
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You can tune idle and cruise more accurately if you switch off closed loop,this way you can line up your AFR with the wideband and get things a lot closer so closed loop isn't working as hard to make changes.
And WOT pulls to get your power runs tuned.
CTS is coolant temp sensor,you can log that data and will show if its faulty,but sounds like you're having fuel pump issues over on your other thread.
And WOT pulls to get your power runs tuned.
CTS is coolant temp sensor,you can log that data and will show if its faulty,but sounds like you're having fuel pump issues over on your other thread.
yes sir I am
I didn't want to go wide open throttle logs if not needed. I was hoping I could view some sort of data on the log if my pump is going. I'm at work so I can't check, but I am assuming no.
Last edited by awdftw; 29 October 2016 at 03:32 PM.
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