Techstream live data analysis

Turbo, Manifolds, Exhaust, Intercooler, Internals etc

Re: Techstream live data analysis

Postby hiluxxury on Thu, 06 Sep 2018 11:51 +0000

Talktheroo wrote:No, the feedback values should be diagnosed from a coolant temperature between 30 to 40 degrees C.
You are right about the load, no air conditioning on. Nothing turned on.
Cold start right up to normal operating temperatures of 80 degrees C plus.
Allow half an hour or so.
I have tested the 1KD-FTVs this way since 2007.
3.0mm3 to -3.0mm3 is the range for the feedback values. Anything outside of this, then you must replace the injectors, as a set of four.
Other things to consider.
Injection volume : 5.0 to 12.0mm3.
If the fuel injection volume deviates from the above readings, there is a deposit/carbon problem. This condition is nearly as bad as the feedback values being out of range. Please take note of this important fact.
MAP : 95 to 105 kPa, idling.
MAF : 5 to 12 g/sec at idle.
Fuel pressure : 30 to 40 MPa.
EGR position : 0 to 65%, engine warmed up at idle.
Inspect suction control valve on the supply pump for damage especially if there is a rough idle problem.
Engine speed at idle : 700 to 800rpm.
Active tests.
Check for fuel leaks as an active test. Physically test for fuel leaks after the test has been performed.
Check the DLC for fault codes.
The Roo.


This post from a while ago basically sums up how I look at the data. I don't worry too much about the cold data - just the operating temp data.

Your data might suggest you need to clean/replace your SCV, perhaps clean the MAF and maybe check for MAP cracks/leaks.
I might be wrong.

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Re: Techstream live data analysis

Postby llough10 on Thu, 06 Sep 2018 7:30 +0000

hiluxxury wrote:
Talktheroo wrote:No, the feedback values should be diagnosed from a coolant temperature between 30 to 40 degrees C.
You are right about the load, no air conditioning on. Nothing turned on.
Cold start right up to normal operating temperatures of 80 degrees C plus.
Allow half an hour or so.
I have tested the 1KD-FTVs this way since 2007.
3.0mm3 to -3.0mm3 is the range for the feedback values. Anything outside of this, then you must replace the injectors, as a set of four.
Other things to consider.
Injection volume : 5.0 to 12.0mm3.
If the fuel injection volume deviates from the above readings, there is a deposit/carbon problem. This condition is nearly as bad as the feedback values being out of range. Please take note of this important fact.
MAP : 95 to 105 kPa, idling.
MAF : 5 to 12 g/sec at idle.
Fuel pressure : 30 to 40 MPa.
EGR position : 0 to 65%, engine warmed up at idle.
Inspect suction control valve on the supply pump for damage especially if there is a rough idle problem.
Engine speed at idle : 700 to 800rpm.
Active tests.
Check for fuel leaks as an active test. Physically test for fuel leaks after the test has been performed.
Check the DLC for fault codes.
The Roo.


This post from a while ago basically sums up how I look at the data. I don't worry too much about the cold data - just the operating temp data.

Your data might suggest you need to clean/replace your SCV, perhaps clean the MAF and maybe check for MAP cracks/leaks.


Hi Hiluxxury,

I had a feeling this could be the case; especially the SCV, which considering the KM's and never being replaced has been a part to monitor for some time (I ended calling a few places today for a SCV).

I cleaned the MAF a little while ago - BUT I did forget to clean the MAP filter (grey/black filter) when reassembling the EGR/INTAKE MANIFOLD.

In the meantime, thankyou very much for your input! I noticed you contribute alot on this forum and it's members like yourself that make this a helpful data base to come too!

I'll let you know how I get on - but I will be sure to get more data when the engine is WARM and the SCV is replaced.
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Re: Techstream live data analysis

Postby hiluxxury on Fri, 07 Sep 2018 6:12 +0000

Yeah mate, no worries. Let us know how you go and do check the MAP filter for cracks - or just buy a new one as they aren't too expensive.
I might be wrong.

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Re: Techstream live data analysis

Postby DeadlyBeast on Fri, 07 Sep 2018 7:58 +0000

llough10 wrote:A couple of extra posts - if the admin can assist in cleaning them up. My apologies!

Just saw this thread - triple post cleaned up
How about doing a hot data anlaysis after cleaning the MAP and before replacing the SCV?
Can always get new SCV after a 5 minute analysis if reference values still out. Then you will know if SCV contributed to out of spec values
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Re: Techstream live data analysis

Postby llough10 on Fri, 07 Sep 2018 10:34 +0000

DeadlyBeast wrote:
llough10 wrote:A couple of extra posts - if the admin can assist in cleaning them up. My apologies!

Just saw this thread - triple post cleaned up
How about doing a hot data anlaysis after cleaning the MAP and before replacing the SCV?
Can always get new SCV after a 5 minute analysis if reference values still out. Then you will know if SCV contributed to out of spec values


Thankyou DeadlyBeast!

Just get the engine temperature up to the ones described in Hiluxxury's post and press record on Techstream while driving?
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Re: Techstream live data analysis

Postby hiluxxury on Sat, 08 Sep 2018 4:17 +0000

Post the entire record. While we may focus on the above, its good to see the whole story.
I might be wrong.

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Re: Techstream live data analysis

Postby DeadlyBeast on Sat, 08 Sep 2018 5:12 +0000

As hiluxxury says get the whole record.
Make sure you get a snap shot at idle too; coolant above 80, no aircon or other accessories running
RPM should be around 750 or many data paramaters will be out of reference range
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Re: Techstream live data analysis

Postby llough10 on Tue, 11 Sep 2018 2:51 +0000

IDLE at OPERATING TEMPERATURE

Parameter Value Unit
Vehicle Speed 0 km/h
Engine Speed 749 rpm
Calculate Load 8.6 %
MAF 8.00 gm/sec
Atmosphere Pressure 101 kPa(abs)
MAP 99 kPa
Coolant Temp 87 C
Intake Air 25 C
Intake Air Temp (Turbo) 35 C
Engine Run Time 1162 s
Initial Engine Coolant Temp 64.3 C
Initial Intake Air Temp 31.8 C
Battery Voltage 13.5 V
Alternate Duty Ratio 33 %
Accel Position 0.00 %
Accel Sens. No.1 Volt % 15.6 %
Accel Sens. No.2 Volt % 32.1 %
Actual Throttle Position 86 %
Throttle Close Learning Val. 16.9 deg
Diesel Throttle Learn Status OK
Injection Volume 4.58 mm3/st
Inj. FB Vol. for Idle -0.96 mm3/st
Inj Vol Feedback Learning 0.0 mm3/st
Injection Feedback Val #1 0.7 mm3/st
Injection Feedback Val #2 -0.4 mm3/st
Injection Feedback Val #3 -0.8 mm3/st
Injection Feedback Val #4 0.3 mm3/st
Pilot 1 Injection Period 432 us
Pilot 2 Injection Period 434 us
Main Injection Period 333 us
After Injection Period 0 us
Pilot 1 Injection Timing -19.6 deg
(CA)
Pilot 2 Injection Timing -12.9 deg
(CA)
Main Injection Timing 2.0 deg
(CA)
After Injection Timing 0.0 deg
(CA)
Target Common Rail Pressure 35000 kPa(abs)
Fuel Press 31820 kPag
Fuel Temperature 53 C
Target Pump SCV Current 1140.6 mA
Target EGR Position 38.4 %
EGR Lift Sensor Volt % 48.8 %
EGR Close Learn Val. 0.73 V
EGR Close Lrn. Val. 0.73 V
EGR Close Lrn. Status OK
EGR VSV OFF
VN Turbo Command 90 %
Starter Signal OFF
Stop Light Switch ON
A/C Signal OFF
# Codes(Include History) 0
MIL ON Run Distance 0 km
Running Time from MIL ON 0 min
Time after DTC Cleared 141 min
Distance from DTC Cleared 53 km
Warmup Cycle Cleared DTC 3
TC and TE1 OFF
Swirl Control Valve VSV ON
ACT VSV OFF
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Re: Techstream live data analysis

Postby llough10 on Tue, 11 Sep 2018 2:52 +0000

100km/h at OPERATING TEMPERATURE

Parameter Value Unit
Vehicle Speed 95 km/h
Engine Speed 2039 rpm
Calculate Load 69.8 %
MAF 90.68 gm/sec
Atmosphere Pressure 101 kPa(abs)
MAP 171 kPa
Coolant Temp 88 C
Intake Air 24 C
Intake Air Temp (Turbo) 30 C
Engine Run Time 619 s
Initial Engine Coolant Temp 64.3 C
Initial Intake Air Temp 31.8 C
Battery Voltage 13.7 V
Alternate Duty Ratio 18 %
Accel Position 51.17 %
Accel Sens. No.1 Volt % 38.4 %
Accel Sens. No.2 Volt % 54.1 %
Actual Throttle Position 2 %
Throttle Close Learning Val. 16.9 deg
Diesel Throttle Learn Status OK
Injection Volume 64.47 mm3/st
Inj. FB Vol. for Idle 4.57 mm3/st
Inj Vol Feedback Learning 0.0 mm3/st
Injection Feedback Val #1 0.7 mm3/st
Injection Feedback Val #2 -0.4 mm3/st
Injection Feedback Val #3 -1.5 mm3/st
Injection Feedback Val #4 0.4 mm3/st
Pilot 1 Injection Period 0 us
Pilot 2 Injection Period 336 us
Main Injection Period 1007 us
After Injection Period 0 us
Pilot 1 Injection Timing -53.3 deg
(CA)
Pilot 2 Injection Timing -38.3 deg
(CA)
Main Injection Timing -5.2 deg
(CA)
After Injection Timing 0.0 deg
(CA)
Target Common Rail Pressure 114200 kPa(abs)
Fuel Press 110850 kPag
Fuel Temperature 45 C
Target Pump SCV Current 1412.3 mA
Target EGR Position 24.3 %
EGR Lift Sensor Volt % 14.8 %
EGR Close Learn Val. 0.75 V
EGR Close Lrn. Val. 0.74 V
EGR Close Lrn. Status OK
EGR VSV OFF
VN Turbo Command 68 %
Starter Signal OFF
Stop Light Switch OFF
A/C Signal OFF
# Codes(Include History) 0
MIL ON Run Distance 0 km
Running Time from MIL ON 0 min
Time after DTC Cleared 132 min
Distance from DTC Cleared 44 km
Warmup Cycle Cleared DTC 3
TC and TE1 OFF
Swirl Control Valve VSV ON
ACT VSV OFF
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Re: Techstream live data analysis

Postby llough10 on Tue, 11 Sep 2018 2:57 +0000

Just a quick thankyou in advance to DeadlyBeast and Hiluxxury for looking at this data and assisting with diagnosis - greatly appreciated!

ALSO, I did clean the MAF sensor less than 200km ago (I did notice some dust build-up on sensor), I have not cleaned the MAP filter for a little while (I did replace with a brand new filter 20,000km ago) and the AIR FILTER is due for a clean.
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Re: Techstream live data analysis

Postby hiluxxury on Wed, 12 Sep 2018 4:55 +0000

Looks like your SCV needs replacement. Its over 2000kpa out.
I might be wrong.

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Re: Techstream live data analysis

Postby llough10 on Wed, 12 Sep 2018 8:13 +0000

hiluxxury wrote:Looks like your SCV needs replacement. Its over 2000kpa out.


Awesome - thankyou for your input Hiluxxury. Certainly helps having other peoples opinions and it saves me time and money.

Speaking of which; any issues with buying the Denso SCV off eBay? I know there are a couple of types of SCV (I will check my pump first before selecting a model) but just curious as to whether these ALL got superseded by the same model?
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Re: Techstream live data analysis

Postby AAA1 on Fri, 04 Jan 2019 12:47 +0000

Hey All,

My first post so please forgive me if I break any rules.
Unreal thread. Has been hugely informative so thanks to all the contributors.

I have a bit of a rattle I'm trying to find and thought I'd see whether anyone catches anything in these outputs that I cant. The rattle comes on from about 1800rpm onward to 2500ish. I'm not sure if it goes or is drowned out by the general engine noise. Doesn't appear to impact performance, but drives me crazy. 2012 SR 97ks stock as a rock.

To date I've:
- had intake pulled apart and cleaned - very dirty;
- Had a solution based decarbon done;
- Cleaned MAF and MAP filter;
- Done a pilot quantity relearn;
- Tried a tank with a bit of 2 stroke oil - no notable difference.

Performance, responsiveness and noises have improved with the above but am still getting this rattle.

I read earlier in this thread the EGR is sometimes the culprit, so I was thinking of getting a Manual Mapper to test that.
Alternatively I thought it may also be the SCV which on idle bounces around around the 1500 kpa - 2000 kpa mark - image below is on warm idle.


[Parameter] [Unit] Cold / Mid / Warm
Vehicle Speed km/h 0 / 0 / 0
Engine Speed rpm 810 / 778 / 749
Calculate Load % 13.7 / 10.9 / 10.1
MAF gm/sec 9.18 / 8.48 / 8.29
Atmosphere Pressure kPa(abs) 101 / 101 / 101
MAP kPa 97 / 96 / 97
Coolant Temp C 42 / 57 / 76
Intake Air C 31 / 30 / 30
Intake Air Temp (Turbo) C 29 / 33 / 35
Engine Run Time s 230 / 199 / 465
Initial Engine Coolant Temp C 25.6 / 40.6 / 40.6
Initial Intake Air Temp C 30 / 31.2 / 31.2
Battery Voltage V 13.8 / 13.8 / 13.7
Alternate Duty Ratio % 31 / 36 / 33
Accel Position % 0 / 0 / 0
Accel Sens. No.1 Volt % % 15.6 / 15.6 / 15.6
Accel Sens. No.2 Volt % % 31.7 / 31.7 / 31.7
Target Throttle Position % 80 / 81 / 85
Actual Throttle Position % 80 / 81 / 85
Throttle Close Learning Val. deg 17.8 / 17.8 / 17.8
Diesel Throttle Learn Status OK / OK / OK
Injection Volume mm3/st 7.55 / 6.17 / 5.95
Inj. FB Vol. for Idle mm3/st 1.17 / 0.19 / -0.42
Inj Vol Feedback Learning mm3/st 0 / 0 / 0
Injection Feedback Val #1 mm3/st 0.3 / 0 / 0.4
Injection Feedback Val #2 mm3/st -0.5 / -0.8 / -0.5
Injection Feedback Val #3 mm3/st -1.5 / -1 / -0.7
Injection Feedback Val #4 mm3/st 1 / 1 / 0.6
Pilot 1 Injection Period us 450 / 457 / 446
Pilot 2 Injection Period us 451 / 461 / 447
Main Injection Period us 538 / 526 / 368
After Injection Period us 0 / 0 / 0
Pilot 1 Injection Timing deg -9.6 / -10.5 / -17.3
Pilot 2 Injection Timing deg -2.4 / -3.5 / -10.6
Main Injection Timing deg 4.6 / 4.6 / 4.6
After Injection Timing deg 0 / 0 / 0
Target Common Rail Pressure kPa(abs) 32950 / 32070 / 35000
Fuel Press kPag 31820 / 29990 / 33640
Fuel Temperature C 28 / 35 / 38
Fuel Return Temp C 62 / 69 / 72
Target Pump SCV Current mA 1062.7 / 1061.8 / 1062.6
Target EGR Position % 69 / 69 / 58
Actual EGR Valve Pos. % 68.6 / 69.8 / 57.6
EGR Lift Sensor Volt % % 60.1 / 60.5 / 53.1
EGR Close Learn Val. V 0.84 / 0.84 / 0.84
EGR Close Lrn. Val. V 0.84 / 0.84 / 0.84
EGR Close Lrn. Status OK / OK / OK
EGR Operation Prohibit OK / OK / OK
Target Booster Pressure kPa(abs) 118.28 / 118.16 / 118.1
VN Turbo Command % 90 / 90 / 90
A/C Signal OFF / OFF / OFF
Engine Speed (Starter Off) rpm 950 / 868 / 868
Starter Count 1 / 1 / 1
Electric Duty Feedback Value mm3/st 1 / 1.2 / 1
A/C Duty Feedback Value mm3/st 0 / 0 / 0
PS Duty Feedback Value mm3/st 0 / 0 / 0
Idle Injection Volume (Min) mm3/st 5.4 / 5.4 / 5.4
Swirl Control Valve VSV ON / ON / ON
ACT VSV OFF / OFF / OFF

Image

Keen to hear any thoughts on any of the above. :D

Cheers

Ash
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Re: Techstream live data analysis

Postby AAA1 on Sun, 20 Jan 2019 8:40 +0000

Hi All,
Thought I'd give a quick update.

Threw on a Manual Mapper and blanking plate.
Notable difference, quieter, more responsive, less turbo lag.
It might just be me but the turbo appears to sound louder.

Haven't touched the fuel adjustment on the mapper - bit beyond me - but am happy with the results.

Want to get a few more kms on it before claiming any success, but it's definitely reduced the rattle.
Whether it's stopped the cause of the rattle, or whether it's just the difference in how the engine is now running I don't know - If that makes sense. :D
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Re: Techstream live data analysis

Postby Gipsy on Mon, 21 Jan 2019 10:08 +0000

The blanking plate would reduce the exhaust bleed to intake (EGR) therefore more exhaust flow/pressure runs the turbo a lot better (turbo whistle)whilst also reducing the rattle because what you are probably hearing is the EGR opening to bleed exhaust to intake. That's the rev range it operates in. Does the plate have a 7mm hole in it? If not be prepared for a code!
Cheers Gipsy :D although I'm sure somebody will challenge that :lol: even Einstein wasn't certain of his theories.
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Re: Techstream live data analysis

Postby Kennnnny on Sun, 24 Mar 2019 8:20 +0000

Hi all,
I went through a few pages yet I cannot quite find an answer to one of my problem.

I start for first time in day (engine cold), car runs good (good enough), quick and slight cold knock from injectors that disappear after first corner. not too alarming yet. When warm after 10min, car runs very nice, nothing wrong with it, feels like new.
Now here is the problem, if I stop the engine for any reasons, petrol station, bakery, arrived at destination, etc....at any time after first cold start (2 min after or 2h after), and then restart immediatly, the engine will then run rough, lumpy, knocky and has a slight lack of power.
I have been blaming the EGR for a while thinking it was opening ruining the fuel mixture or else.
I have connected techstream onto vehicle and here is the INJECTORS RESULT:

WARM ENGINE FROM FIRST START idle:

Image

WARM ENGINE AFTER RESTART IMMEDIATELY AFTER COLLECTING DATAS ABOVE:

Image


Clearly my injectors are not great either way and I am planning on replacing them in the next couple of weeks. however I can't understand why from a single immediate restart the number 3 becomes terrible??? also if it is linked to a fuel adjustment from ECU once it detects engine is warm, why does it need a restart to do it?? As I said, I could be driving for hours with a smooth engine if i simply don't restart it from a cold first start.

I have very occasionally starting rough from cold when parked in sun. I concluded it is also linked to temperature sensor.

Any ideas why?

THANKS GUYS!

Ken
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Re: Techstream live data analysis

Postby hiluxxury on Sun, 24 Mar 2019 5:12 +0000

Interesting indeed. No doubt you'll find the answer when you pull the injectors out. As you have seen, those symptoms haven't been documented here yet. Let's hope new injectors and seats fix the problem.
I might be wrong.

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Re: Techstream live data analysis

Postby sanrook on Tue, 09 Apr 2019 11:57 +0000

This is a nice thread!

I have a doubt regarding the injection timing. In my 1GDFTV the pilot inj is in +ve number and the main inj is in -ve number.

When the main inj is -ve when in idle and when driving move close to 0 (or negative values decrease) is the injection advancing? When running the -ve main inj move closer to 0 and pilot inj, which is already positive value, keeps on increasing.

Eg:
Idle
Main Inj -3
Pilot inj 15

Driving
main inj -2
pilot inj 17

So in this case with regard to main inj when it is closer to 0 is advancing?
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Re: Techstream live data analysis

Postby hiluxxury on Tue, 09 Apr 2019 12:28 +0000

Dunno... when you talk about driving I'm assuming the engine is under load?

I think the analysis here is mainly done at 750rpm under no load, either warm or cold.

Under load is a new world... maybe the tuners would have an idea..??
I might be wrong.

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Re: Techstream live data analysis

Postby sanrook on Tue, 09 Apr 2019 12:44 +0000

Yes under 800rpm while idling and driving off (automatic) from idle RPM.

When in idle the main inj values are more negative. When driving (load) values move towards 0 and positive.
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