[AFR problem at idle]

4 minutes ago, Krystian said:

Did you ever found the problem? I have similar problem on my evo8 with link g4x ecu. When I restart the car air fuel change 1.0 point towards lean across whole fuel map but when I restart it again its coming back to normal.

SUre, it was injectors. just installed id1050x and no problems

[closed loop fuel correction strange]

4 hours ago, SchuKingR said:

firmware version? Maybe it's the same error someone on facebook had. It's a bug in the 5.6.8 firmware. There is a newer firmware available, but it's not online on the website yet.

5.6.8

[closed loop fuel correction strange]

fuel trim limited for 15%

what is wrong?

as you can see in log there is some big spikes 6442% of fuel correction. and its real correcting for that amount of fuel.

CL fue; corr 6442%.llg

[SOI question]

1 hour ago, Adamw said:

Yeah sorry, I done that spreadsheet about 10 years ago and have obviously made a mistake in one of the formulas for end of injection somewhere.  I dont really have time or interest in fixing it right now.  You will have to get your calculator out...

thank you for your support, i'll try to calculate it.

[SOI question]

On 6/16/2019 at 2:46 PM, Adamw said:

Yes you are right, it should be 540. 

Sorry I think I have a mistake in my spread sheet, I think I have fixed it now.  

 

Injection Calcs.xlsx 15.62 kB · 5 downloads

0 and 720 is same you told me, in table not same, please check it 

[SOI question]

Thank you Adamw for your answer

im little bit confuse about, whether this table will work properly 

Sequential Injector Timing (°BTDC)SOI 360.lte

for example

if I need to end injection at 360, injection time is 5ms injection duration is 180 deg at 6000rpm, I need to start it at 540deg right? but in table its 180deg

[SOI question]

Hi, i setup Sequental/staged injection mode on my subaru. 

Question is why Link can not use fuel cut mode with EOI timing position and i have message use SOI

Ok, second question is if i need to end injection timing at 360 degrees with 10msec injection at 6000rpm, i need to start injection at 720? and if i need 14msec at same engine speed, the maximum number in ECU is 720.

or may be i misunderstand something lol

[AFR problem at idle]

4 hours ago, Adamw said:

Pretty odd problem for sure.  You have a mixture difference of 25% so that is a significant change in fuel or air mass. I dont see anything in the log that could cause that.  Does it actually run completely different or does it still run ok when rich Vs normal?  What injectors are they?  If they are the Bosch CNG injectors then I would be suspicious of those.  Have you checked fuel pressure?  What about a tight valve clearance or vacuum leak or similar that causes 1 cylinder to misfire?

When its rich its really rich, with black smoke from exhaust

Injectors is Delphi 42lb 01d030b high impedance

still not checked FP

i will check leak test later

[AFR problem at idle]

4 hours ago, neil brown said:

Failing lambda ?

 

is it a wide band  or narrow band 

 

what car 

4.9 on board and addition external aem x-series 

[AFR problem at idle]

Hello

we have some problem with AFR at idle, above 1-2 hour lambda reads AFR 10-11 at idle and its really rich (tested with external wideband)

But if we turn off engine for 30min, than AFR is ok, but only for 1 hour

ECT, IAT, charge temp, ecu temp, Bat volt, Inj PW actual and effective all same

may be its fuel temp but usually must be lean

idle lean after 30 min Log 2018-07-10 8;34;51 pm.llg

Idle rich AFR Log 2018-07-10 7;00;47 pm.llg