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Thread: Need help e39 540i SC reach AFR

  1. #1
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    Need help e39 540i SC reach AFR

    Dear friends,
    My afr below 10 with 440cc and 330cc injectors. Air consumption shows 25kg/h with 330ohm resistors 700rpm. Engine is shaking and afr is installed on driver site shows below 10. Decided change lambda sensor. No changes. Removed cam sensor, no changes and mistakes. Removed knocking sensors, no changes. Checked spark plugs, driver site is black dust. Passenger site is clean. Cleaned all sparks and pluged again. No changes. Checked injectors on fuel rump, no leakages.
    Please, need your help...
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  2. #2
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    Engine works super reach. The only thing is engine opening unles no body give any suggestion.
    By the way put new air sensor. Still engine works with shaking. Shows 25kg/h.
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  3. #3
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    Just a video
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  4. #4
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    You seem to have a lot of problems. Hard to help from here.
    Just to be clear, we are talking idle roughness (700rpm). This means the s/c has no effect on problem.
    Bank 1 runs clean, bank two is black. I would say clogged cats but you have no cats.
    And wasn't your engine just apart?
    Bank 2 cam timing could be off especially the exhaust cam ,which won't throw a code.
    Do a compression test

  5. #5
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    Quote Originally Posted by wagons ho View Post
    You seem to have a lot of problems. Hard to help from here.
    Just to be clear, we are talking idle roughness (700rpm). This means the s/c has no effect on problem.
    Bank 1 runs clean, bank two is black. I would say clogged cats but you have no cats.
    And wasn't your engine just apart?
    Bank 2 cam timing could be off especially the exhaust cam ,which won't throw a code.
    Do a compression test
    We did compression bro. All of them good. When i switching off my engine and then switch on afr is 14.7 about 10-15 sec. Then drop down.
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  6. #6
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    Any advise friends?
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  7. #7
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    I checked injectors, works good. Continue to search what is wrong with my car.

    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  8. #8
    geargrinder's Avatar
    geargrinder is offline Having No Trouble Here BMW CCA Member
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    Quote Originally Posted by wagons ho View Post
    You seem to have a lot of problems. Hard to help from here.
    Just to be clear, we are talking idle roughness (700rpm). This means the s/c has no effect on problem.
    Bank 1 runs clean, bank two is black. I would say clogged cats but you have no cats.
    And wasn't your engine just apart?
    Bank 2 cam timing could be off especially the exhaust cam ,which won't throw a code.
    Do a compression test
    I'm with you - I'm having trouble keepin up. I thought the motor was getting torn down for sleeves but then we keep getting posts about other stuff. Very confused.
    2003 M3CicM6 TiAg
    2002 540iT Sport Vortech S/C 6MT LSD TiAg
    2008 Audi A3 2.0T DSG (the daily beater)
    2014 BMW X1 xDrive28i (wifemobile)

    Former:

    1985 MB Euro graymarket 300SL
    1995.5 Audi S6 Avant (utility/winter billetturbobattlewagen)


  9. #9
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    Additional info. My engine works super reach and afr 10 and below. Both 330 & 440 cc injectors. I checked my MAF sensor and it shows 22kg/h. Should be 16.9kg/h with 330ohm resistor. So, i changed maf but situation is the same. Somehow my maf sensor is read more air flow and engine is starting inject more fuel. Looks like some shortcut somewhere.

    - - - Updated - - -

    I still waiting your suggestions gents.
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  10. #10
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    Quote Originally Posted by dovlet View Post
    Any advise friends?
    The problem is that it's only one bank. Meaning that all the common suggestions would involve the entire engine. What could cause plugs on one side to be black and fouled and one side clean?
    Something mechanical. Like cam timing.
    Lean misfire can look like too rich.
    We don't know that it runs properly for the first 15 seconds, only that the afr is 14 while it is on the unmodified and unaltered factory start programming.
    1) Take out maf resistor.
    2) what is compression?
    3) what is vacuum?

  11. #11
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    Quote Originally Posted by wagons ho View Post
    The problem is that it's only one bank. Meaning that all the common suggestions would involve the entire engine. What could cause plugs on one side to be black and fouled and one side clean?
    Something mechanical. Like cam timing.
    Lean misfire can look like too rich.
    We don't know that it runs properly for the first 15 seconds, only that the afr is 14 while it is on the unmodified and unaltered factory start programming.
    1) Take out maf resistor.
    2) what is compression?
    3) what is vacuum?
    How can i check vacum?
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  12. #12
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    One more time GENTS:

    1. AFR is showing below 10. Usually it was 14.7 during normal driving with resistor due to lambda doing correction. AFR is installed on driver site of engine. Engine works with shaking. During full load engine works good.

    2. MAF is showing 21 kg/h, usually shows 16kg/h.
    3. Driver site of engine spark plugs becoming black of smokes. Left site is ok.
    4. Sometimes knocking sensor is showing knocks error in scaner.
    5. One time diagnostic scanner said that lambda sensor bank 1 changed to bank 2.
    6. Changed ECU, nothing changed.
    7. Checked 440cc injectors on stand, they working very well. Removed 440cc injectors and installed 330cc injectors, engine works better but still super reach AFR 10 during throttle to idle. During normal driving 12-13AFR.
    8. Changed lambda but nothing changed.
    9. Changed MAF, nothing changed.
    10. Changed cam sensor, nothing changed.
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  13. #13
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    Scaner showed:
    Bank 1 is reached fuel mixture limits
    Bank 2 is reached fuel mixture limits
    Knocking bank 2

    Any advise?
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  14. #14
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    Do not know whether it is a reason or no but find crack on intake manifold and seals crashing observed.
    20171104_181534-720x1280.jpg
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  15. #15
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    One more video gents. Does your engine also doing like this?

    - - - Updated - - -

    https://youtu.be/w4hEIPxr67M

    - - - Updated - - -

    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  16. #16
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    Blow by. No it shouldn't be coming up dipstick, bad ?ccv
    And that crack on intake would not effect just one side.
    Cracked ringlands?
    1Compression test
    2Vacuum test
    3Cam timing

  17. #17
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    Quote Originally Posted by wagons ho View Post
    Blow by. No it shouldn't be coming up dipstick, bad ?ccv
    And that crack on intake would not effect just one side.
    Cracked ringlands?
    1Compression test
    2Vacuum test
    3Cam timing
    Compression test done on cold engine. Showed 10.5-11. Tomorow am going to check compression on hot engine.
    Have no idea what vacume test means.
    Shal i check my cam position? Or cam shaft timing number?
    Last edited by dovlet; 11-05-2017 at 03:34 PM.
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  18. #18
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    Quick update, currently disambled headers one part and noted that metal sealing blown.
    SmartSelectImage_2017-11-08-16-16-51.png
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  19. #19
    geargrinder's Avatar
    geargrinder is offline Having No Trouble Here BMW CCA Member
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    Well there you go.

    Just some vocabulary tips - you disassembled "heads" ("headers" is a slang word for tubular exhaust manifolds - who knows how it got that name...) and the metal sealing is the 'head gasket'.

    You are now going to want to check everything every carefully - rings & valves to be sure nothing else has suffered.
    2003 M3CicM6 TiAg
    2002 540iT Sport Vortech S/C 6MT LSD TiAg
    2008 Audi A3 2.0T DSG (the daily beater)
    2014 BMW X1 xDrive28i (wifemobile)

    Former:

    1985 MB Euro graymarket 300SL
    1995.5 Audi S6 Avant (utility/winter billetturbobattlewagen)


  20. #20
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    Quote Originally Posted by geargrinder View Post
    Well there you go.

    Just some vocabulary tips - you disassembled "heads" ("headers" is a slang word for tubular exhaust manifolds - who knows how it got that name...) and the metal sealing is the 'head gasket'.

    You are now going to want to check everything every carefully - rings & valves to be sure nothing else has suffered.
    Correct bro, even if he head gaskets blown out the smoke should not come from oil checking hole (what ever name of oil level checking place)
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  21. #21
    geargrinder's Avatar
    geargrinder is offline Having No Trouble Here BMW CCA Member
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    Well - might have been steam coming out of the "dipstick tube" if the head gasket was bad enough, although i don't see a path to a water jacket in your pic, and usually with water the cylinders are all shiny steam cleaned, so - unless you see somethin else not in the picture, then you were probably just getting cylinder to cylinder blow out.
    2003 M3CicM6 TiAg
    2002 540iT Sport Vortech S/C 6MT LSD TiAg
    2008 Audi A3 2.0T DSG (the daily beater)
    2014 BMW X1 xDrive28i (wifemobile)

    Former:

    1985 MB Euro graymarket 300SL
    1995.5 Audi S6 Avant (utility/winter billetturbobattlewagen)


  22. #22
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    Quote Originally Posted by geargrinder View Post
    Well - might have been steam coming out of the "dipstick tube" if the head gasket was bad enough, although i don't see a path to a water jacket in your pic, and usually with water the cylinders are all shiny steam cleaned, so - unless you see somethin else not in the picture, then you were probably just getting cylinder to cylinder blow out.
    Bor, then why a lot of white smokes from dip stick? As shown in move above?
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  23. #23
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    I think i found the problem.
    Attachment 614917
    2 of 4 is cracked again. Lets see what is on other site.
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

  24. #24
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    Quote Originally Posted by dovlet View Post
    I think i found the problem.
    Attachment 614917
    2 of 4 is cracked again. Lets see what is on other site.
    I can't see that attachment.

  25. #25
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    Quote Originally Posted by tptrsn View Post
    I can't see that attachment.
    Second try
    SmartSelectImage_2017-11-08-18-51-23.png20171108_192449.jpg20171108_192532.jpg
    e39 540i 6speed Supercharged,
    E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…

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