Injector feedback.

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

So I bought tech stream so I can monitor my injector values, I can see myself looking at them every day now .

Anyway hooked it all up this morning and got the following when cold,

#1 - 0.0
#2 - 0.3
#3 - 2.5
#4 - -2.5

It settled down to less than ones after 5 minutes or so. Is this cause for alarm? They are only 6 months old with 21k on the clock.

Chris

Please remind us, what year vehicle?
How manly Klm's on original injectors?
What injectors did you use?
Who installed them?

What is the initial coolant temp?
How long in run time before they drop below -1.0?
What do they drop to?
What is the total volume?

Don't panic yet.

[sweetpea Senior Member Find all posts View Profile Close sweetpea]

Please remind us, what year vehicle?
How manly Klm's on original injectors?
What injectors did you use?
Who installed them?

What is the initial coolant temp?
How long in run time before they drop below -1.0?
What do they drop to?
What is the total volume?

Don't panic yet.

Seems it is a very new 150

http://www.pradopoint.com/showthread...ary-fuse-block

S

[MalP Junior Member Find all posts View Profile Close MalP]

Hi Limo

It was on eBay, from a seller called obdfamily

V10.0.028 Mini VCI OBD2 Diagnostic Cable Scanner for Toyota Lexus TIS Techstream
32bit and 64bit compatible.

They still have them listed, but the price has shot up.

[Aussiegxl Lurker Find all posts View Profile Close Aussiegxl]

Please remind us, what year vehicle?
How manly Klm's on original injectors?
What injectors did you use?
Who installed them?

What is the initial coolant temp?
How long in run time before they drop below -1.0?
What do they drop to?
What is the total volume?

Don't panic yet.

Hi ####,

Its only new, so 2015 on its original injectors (22k km). However I hadn't properly read the that you need to have all accessories off and I have a feeling that the air con was on, and was on pretty hard in the rear as it was pretty hot for our hound and the radio was going. Anyway it was my first time plugging it in and I wanted to make sure it was working.

I checked again this afternoon after it was left at work for 6 or 7 hours. Made sure absolutely everything was off.

Coolant temp 38 degrees

#1 0.0
#2 -0.2
#3 -0.7
#4 1.0

Volume was around 9. Highest I was #4 get up to was 1.2. And they were all pretty stable under one after 2 minutes or so.

So much better. Hopefully was just a spurious read (insert total noob operator error). I'll keep checking them every couple of weeks.

I can't thank all of you enough. Its such a relief to know that there are people out there that genuinely care and are willing to help out with your mastery of the Prado.

Thanks again.

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Hi ####,

Its only new, so 2015 on its original injectors. However I hadn't properly read the that you need to have all accessories off and I have a feeling that the air con was on, and was on pretty hard in the rear as it was pretty hot for our hound and the radio was going. Anyway it was my first time plugging it in and I wanted to make sure it was working.

I checked again this afternoon after it was left at work for 6 or 7 hours. Made sure absolutely everything was off.

Coolant temp 38 degrees

#1 0.0
#2 -0.2
#3 -0.7
#4 1.0

Volume was around 9. Highest I was #4 get up to was 1.2. And they were all pretty stable under one after 2 minutes or so.

So much better. Hopefully was just a spurious read (insert total noob operator error). I'll keep checking them every couple of weeks.

I can't thank all of you enough. Its such a relief to know that there are people out there that genuinely care and are willing to help out with your mastery of the Prado.

Thanks again.

That looks more like it.
This is why I say it's hard to correctly diagnose the wear on injectors from one or 2 snap shots, they need to be monitored for the warm up period.
All accessories off & air con is the big one.

That's all good, don't worry or be obsessed with it just check it out each service.
You should be fine for many years to come.

[Coolcol Moderated member Find all posts View Profile Close Coolcol]

Hi Anthony,
Can you have a look at these numbers and give me your thoughts. Yes No.1 is the worry!
Thanks in advance.



PS Injectors were change by local stealaship after some contaminated fuel blocked all sorts of things including the injectors.

Cheers
Colin

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Hi Anthony,
Can you have a look at these numbers and give me your thoughts. Yes No.1 is the worry!
Thanks in advance.



PS Injectors were change by local stealaship after some contaminated fuel blocked all sorts of things including the injectors.

Cheers
Colin

Hi Colin,

I'm glad you posted that picture. Now everyone can see how even new Injectors can go bad fast if they are contaminated.

I note the number 1 reading is up a bit right away, while this is uncommon, it does happen a bit.
As they are under warranty, I would be probably swapping 1 & 2, too see if its the injector or the engine or a bit of both.
Might sound crazy, but sometimes it needs to be done.
I would certainly be watching it closely, & also the total volume.
Are there any rattles?
Maybe it was not cleaned out properly & damage has been done, if so they may go bad fast.

It looks like they are coming down as they warm up, so that's good.
Also total volume looks ok.

[Coolcol Moderated member Find all posts View Profile Close Coolcol]

Hi Anthony, Thanks for your thoughts! Its reassuring to get an expert opinion.
If I swap one and two can I read the codes on Tech-stream and reverse them ?
Do I need to change the fuel pipes for this test ?
Interesting I did not think about warranty how long are they cover for? As its over 12 months!
The service report say they are new not refurbished.
Thanks
Colin

PS: No rattles, seems normal in every aspect.

[ToeEdge Junior Member Find all posts View Profile Close ToeEdge]

Hi All,
I'm not sure if this has been asked elsewhere, and I almost started a new thread for this question.
But, do the Injector codes have any baring on the way the injector performs, or the way the ECU directs timing to each injector?
Reason being, I had my injectors installed at Baileys, and the codes have never been updated from the previous injectors.
Do these Injector codes apply to reconditioned injectors, given it's performance would have changed from factory?
I'm thinking of doing an experiment where I take my current cold readings with the Techstream, then enter the correct codes, then take the cold readings again to see if there is any difference.
But before I do this, I'd like some educated comments please ;-)

[Coolcol Moderated member Find all posts View Profile Close Coolcol]

Ok swapped injectors 1 & 2 and yes Anthony your spot one once again a bit of car a bit of injector. I'm a lot happier now even if this was another PITA job you have got me to do Clean the EGR install the EGR restrictor now, Swap the injectors!!
Its all good, Hey Really Thanks for all your help! much appreciated!
Regards
Colin

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Hi All,
I'm not sure if this has been asked elsewhere, and I almost started a new thread for this question.
But, do the Injector codes have any baring on the way the injector performs, or the way the ECU directs timing to each injector?
Reason being, I had my injectors installed at Baileys, and the codes have never been updated from the previous injectors.
Do these Injector codes apply to reconditioned injectors, given it's performance would have changed from factory?
I'm thinking of doing an experiment where I take my current cold readings with the Techstream, then enter the correct codes, then take the cold readings again to see if there is any difference.
But before I do this, I'd like some educated comments please ;-)

Yes, you need to enter the correct codes.
BDG would have done that.

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Hi Anthony, Thanks for your thoughts! Its reassuring to get an expert opinion.
If I swap one and two can I read the codes on Tech-stream and reverse them ?
Do I need to change the fuel pipes for this test ?
Interesting I did not think about warranty how long are they cover for? As its over 12 months!
The service report say they are new not refurbished.
Thanks
Colin

PS: No rattles, seems normal in every aspect.

Ok swapped injectors 1 & 2 and yes Anthony your spot one once again a bit of car a bit of injector. I'm a lot happier now even if this was another PITA job you have got me to do Clean the EGR install the EGR restrictor now, Swap the injectors!!
Its all good, Hey Really Thanks for all your help! much appreciated!
Regards
Colin

Hey,

Sorry about the slow reply.
Yes you have to enter the correct compensation codes to the ecu with tech stream.
Feel free to call me if you have any queries.

####.

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

A very important reminder.

I flick through the usual forums & sites once or twice a day when possible, I often see, or am asked about the feedback values , & thank you for asking
Screen shots can be an indicator of problems, as I have said befor you really need to watch it through the warm up cycle.

The other very important thing is, it seems jst about every time people are looking at feedback values
1,2,3,4 right?
You need to look at those but other very important parameters, a good example one I checked this arvo.



That is hot, full temp, for this example for you, keeping it simple.

Feedback values look ok :idea: :?:

The top one, main injection volume is out. Hot: 5-6 is growse, 7-8 is ok, 9-10 is getting there. 11-12 is book it in, 12+ cancel all bets.
Now that is only a guide, as combination of specs should be taken into account.
Also the spec on feedback for idle is 4, so that is also out.
Near the bottom, 3rd one under val#4 main injection period 827, she's way out, should be under 710.

So individual feedbacks ok, 3 other parameters on that shot out! :shock:

Keep watching, there's more.......

Screen shot minutes later



Yes same car still idling at full temp (idling like the pig)
Things have changed

VERY IMPORTANT:
This is also why injectors generally should be changed as sets of 4, they are all either worn or contaminated.
You see now number 4 looks good :idea: no wrong it's stuffed too :!:

Cheers,

####.

[retroenduro Member Find all posts View Profile Close retroenduro]

Ok so just had my car in for injector feedback values and they didnt do them cold according to the service manager..even though they asked for the car overnight.

but being sly i was reading the technicians notes which said something along the lines of no4 injector came good once warm.

he then said when pushed that 4 was 'around 3.5' but 'settled down' once warm.

final values were
no.1 -0.5
no.2 -0.4
no.3 -0.4
no.4 0.9

Am i being fed BS? the car is still under warranty....

[krypto Avid PP Poster! Find all posts View Profile Close krypto]

Thanks ####, really helpful information that makes a lot of sense. Went back and had a look at my values with a fresh set of eyes. Interesting how the values can move around quite a bit so important to get an average result.