Injector values check please

DG330 · 09-11-2019, 05:17 PM

Hi,

So my car is smoking pretty much all the time, but when it’s warmed up it’s worse.

Smoke is light blue/grey and with the MAF disconnected it appears to get better. Also with maf plugged in, I get more black smoke.

These are my INPA values. Top picture is about 20/30.seconds after start up. Second is once warm and after giving it some WOT. Third is when warm with maf disconnected after a restart and some WOT. When on Wot with the maf unplugged injector 5 and 6 didn’t go nearly as high and highest was about 1.5, whereas with it plugged it in what 1.9

Thoughts? Could my injectors be causing this smoke?

154k miles if that helps

DG330 · 09-11-2019, 05:26 PM

Sorry for the bottom one, tried to get it to flip but it won’t. Last one is once it’s had some WOT and left to idle for a min.

robnitro · 09-12-2019, 05:56 AM

It looks fine. Cold values are not valid test. Warm looks ok the last one best because you fully warmed up.

I think it's your tune doing something with the egr or throttle or trying to regen. Did you block off your egr? If so and it's not tuned out you will get issues. Dodgy uk tunes lol

DG330 · 09-12-2019, 09:27 AM

last one is with the maf unplugged after idle for a min and before that some WOT. What do you think about image two in the middle? injector six is going quite far out. This was during WOT or just after.

No, EGR is there, but the sensor has made that thumping sound before. No ECU code for it though. I've got a replacement sensor/solenoid and new vacuum hose to replace all of it under the intake. Black smoke is reduced with either the EGR or MAF unplugged. Both removes 95% of black smoke, but still get idle blue/grey, but not as much.

robnitro · 09-12-2019, 12:09 PM

When you unplug the maf, it won't use the throttle valve. Bad tuning will try to use that valve thinking a regen is needed and that will cause smoke. Can you try a short run with the throttle unplugged.

DG330 · 09-12-2019, 02:39 PM

Yeah can do, you mentioned I could get run on though? Is there any risk by doing so?

Thanks

robnitro · 09-13-2019, 08:53 AM

Not unless you're leaking tons of oil... It's there to save you by shutting down it cuts the air to engine. Kook at the other thread I bet you have a bollocks tune lol

DG330 · 09-14-2019, 05:37 PM

To update this. I done a leak back test today and results are as follows:

Leak back - idle 6 mins from cold. (Per min)
Cyl 6 18ml (3ml)
Cyl 5 16ml (2.6ml)
Cyl 4 16ml (2.6ml)
Cyl 3 16ml (2.6ml)
Cyl 2 15ml (2.5ml)
Cyl 1 18ml (3ml)

5 mins cycle (2 min idle, 30 seconds 3000rpm, 30 seconds idle x3 - stop test)
6 - 14ml
5 - 13ml
4 - 13ml
3 - 11ml
2 - 14ml

Pretty happy with hose results. Any thoughts?

09-11-2019, 05:17 PM	#1
DG330 First Lieutenant 70 Rep 360 Posts Drives: 330 Join Date: Nov 2018 Location: Uk iTrader: (0)	Injector values check please Hi, So my car is smoking pretty much all the time, but when it’s warmed up it’s worse. Smoke is light blue/grey and with the MAF disconnected it appears to get better. Also with maf plugged in, I get more black smoke. These are my INPA values. Top picture is about 20/30.seconds after start up. Second is once warm and after giving it some WOT. Third is when warm with maf disconnected after a restart and some WOT. When on Wot with the maf unplugged injector 5 and 6 didn’t go nearly as high and highest was about 1.5, whereas with it plugged it in what 1.9 Thoughts? Could my injectors be causing this smoke? 154k miles if that helps Attached Images Last edited by DG330; 09-11-2019 at 05:25 PM..
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09-11-2019, 05:26 PM	#2
DG330 First Lieutenant 70 Rep 360 Posts Drives: 330 Join Date: Nov 2018 Location: Uk iTrader: (0)	Sorry for the bottom one, tried to get it to flip but it won’t. Last one is once it’s had some WOT and left to idle for a min.
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09-12-2019, 05:56 AM	#3
robnitro Captain 160 Rep 803 Posts Drives: x5 35d e70 2011 Join Date: Sep 2016 Location: NYC area iTrader: (0)	It looks fine. Cold values are not valid test. Warm looks ok the last one best because you fully warmed up. I think it's your tune doing something with the egr or throttle or trying to regen. Did you block off your egr? If so and it's not tuned out you will get issues. Dodgy uk tunes lol
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09-12-2019, 09:27 AM	#4
DG330 First Lieutenant 70 Rep 360 Posts Drives: 330 Join Date: Nov 2018 Location: Uk iTrader: (0)	last one is with the maf unplugged after idle for a min and before that some WOT. What do you think about image two in the middle? injector six is going quite far out. This was during WOT or just after. No, EGR is there, but the sensor has made that thumping sound before. No ECU code for it though. I've got a replacement sensor/solenoid and new vacuum hose to replace all of it under the intake. Black smoke is reduced with either the EGR or MAF unplugged. Both removes 95% of black smoke, but still get idle blue/grey, but not as much.
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09-12-2019, 12:09 PM	#5
robnitro Captain 160 Rep 803 Posts Drives: x5 35d e70 2011 Join Date: Sep 2016 Location: NYC area iTrader: (0)	When you unplug the maf, it won't use the throttle valve. Bad tuning will try to use that valve thinking a regen is needed and that will cause smoke. Can you try a short run with the throttle unplugged.
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09-12-2019, 02:39 PM	#6
DG330 First Lieutenant 70 Rep 360 Posts Drives: 330 Join Date: Nov 2018 Location: Uk iTrader: (0)	Yeah can do, you mentioned I could get run on though? Is there any risk by doing so? Thanks
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09-13-2019, 08:53 AM	#7
robnitro Captain 160 Rep 803 Posts Drives: x5 35d e70 2011 Join Date: Sep 2016 Location: NYC area iTrader: (0)	Not unless you're leaking tons of oil... It's there to save you by shutting down it cuts the air to engine. Kook at the other thread I bet you have a bollocks tune lol
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09-14-2019, 05:37 PM	#8
DG330 First Lieutenant 70 Rep 360 Posts Drives: 330 Join Date: Nov 2018 Location: Uk iTrader: (0)	To update this. I done a leak back test today and results are as follows: Leak back - idle 6 mins from cold. (Per min) Cyl 6 18ml (3ml) Cyl 5 16ml (2.6ml) Cyl 4 16ml (2.6ml) Cyl 3 16ml (2.6ml) Cyl 2 15ml (2.5ml) Cyl 1 18ml (3ml) 5 mins cycle (2 min idle, 30 seconds 3000rpm, 30 seconds idle x3 - stop test) 6 - 14ml 5 - 13ml 4 - 13ml 3 - 11ml 2 - 14ml Pretty happy with hose results. Any thoughts?
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