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Thread: Need help! E38 Got random codes and stalls

  1. #1
    Join Date
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    Need help! E38 Got random codes and stalls

    Hell everyone so I got a 1998 740i pre vanos.....I've replaced maf sensor, cam shaft sensor, crankshaft sensor, air/oil/fuel filters, icv, intake manifold gaskets, valleypan, water accumulator gaskets, transfer pipe o rings, spark plugs, ignition coils, and cleaned fuel injectors....it still needs exhaust manifold gaskets replaced and the rear main seal gaskets but it currently turns on right away, but as soon as I give it any gas BAM sputters and stalls out....but always starts up. Could this be because of exhaust leak and rear main seal? I also pulled to codes but they came in BMW language. Please someone help, this has been a 3 month process, I took it to the dealership and all they told me were bad gaskets and hoses so I did it all myself. Now I'm stuck.

    Codes:
    1. 6c open circuit continuous power supply
    2. CC EWS 3.3 random code storage

  2. #2
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    Sounds like something to do with injector 6 is bad or not connected or bad connection.

    Sent from my VS995 using Tapatalk

  3. #3
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    Quote Originally Posted by asianvenom View Post
    Sounds like something to do with injector 6 is bad or not connected or bad connection.

    Sent from my VS995 using Tapatalk
    Thanks for the response, so do you think if it's a bad injector, when I change it, it should stop stalling but still be rough because of the leaks? I need it running well enough to get to a shop to repair the rear main seal...I'll go ahead and check the connections today

  4. #4
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    I dont really think its a bad injector...more like connection issue...but possible...

    Sent from my VS995 using Tapatalk

  5. #5
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    I would go through the connections. I had my daughter pull every fuse to clean and test. The EWS can do funky stuff and should be reset. Here's what I went through,

    https://www.bimmerforums.com/forum/s...Solved-for-now
    01' 750il Chromeline
    95 M3 LS swapped
    07 M5 Manual
    06' M5, Spartan wheels and a 507hp V10
    00' 740il Dinan, CAI, Romulus exhaust, Stage 5 engine and transmission tune, 750 brakes, camber plates, strut tower brace. Sold
    00' 323i wagon for daughter
    03' 525i wagon for the wife, sold
    98' 740i for the daughter, wrecked
    92' 525i with over 200k, wrecked
    02' R1200 CLC, hit by a bus and broken in half. That one made the news!
    It's like herpes there is no cure but if treated properly you can live with it for the rest of your life

  6. #6
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    Quote Originally Posted by acspecialists View Post
    I would go through the connections. I had my daughter pull every fuse to clean and test. The EWS can do funky stuff and should be reset. Here's what I went through,

    https://www.bimmerforums.com/forum/s...Solved-for-now
    Okay so just to make sure, an exhaust man. Gasket leak and rear main seal leak aren't enough to make the engine stall when attempting to accelerate? My connections seem all good but I'm still going to clean them all out to just in case, also my battery has been sitting for a few months so I'm gonna charge that as well.

  7. #7
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    Not likely, unless you have clogged cats that caused enough back pressure to cause the leak. Did you use all OEM sensors? This car does not respond well to aftermarkets and can very well cause your issue.

  8. #8
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    Quote Originally Posted by Mayorchuck View Post
    Not likely, unless you have clogged cats that caused enough back pressure to cause the leak. Did you use all OEM sensors? This car does not respond well to aftermarkets and can very well cause your issue.
    I made sure to get all oem for this one, but do you think I should try another cam sensor in case the one I purchased was faulty? Or anytoher sensor I should try swapping out?

  9. #9
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    Why dont you just probe injector 6 to see if you're getting constant 12v there?

    That's what your code is saying
    Last edited by asianvenom; 07-23-2018 at 10:03 PM.

  10. #10
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    Unplugging the MAF is a quick and easy test, here's another story.

    https://www.bimmerforums.com/forum/s...&highlight=MAF
    01' 750il Chromeline
    95 M3 LS swapped
    07 M5 Manual
    06' M5, Spartan wheels and a 507hp V10
    00' 740il Dinan, CAI, Romulus exhaust, Stage 5 engine and transmission tune, 750 brakes, camber plates, strut tower brace. Sold
    00' 323i wagon for daughter
    03' 525i wagon for the wife, sold
    98' 740i for the daughter, wrecked
    92' 525i with over 200k, wrecked
    02' R1200 CLC, hit by a bus and broken in half. That one made the news!
    It's like herpes there is no cure but if treated properly you can live with it for the rest of your life

  11. #11
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    99 840ci Sport Indv
    Most likely fault (given the code and the fact that you have removed and replaced the inlet manifold) is that you haven't seated the connector back into injector 6 (second cylinder back on the right-hand side of the engine as you face it).....
    Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i


    My BMW Repair YouTube Channel
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  12. #12
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    Quote Originally Posted by Timm View Post
    Most likely fault (given the code and the fact that you have removed and replaced the inlet manifold) is that you haven't seated the connector back into injector 6 (second cylinder back on the right-hand side of the engine as you face it).....

    Alright so, I tested each injector and they were all good and I made sure to seat the connections in perfect. After doing the test I started it up and let it run for a bit to get any codes, once I scanned it those 2 previous codes were gone but a new code popped up. It seems to be the icv but I have already replaced that with a new Bosch unit earlier this year, could it be a bad part? How can I go about testing it if you know.

    Code:
    A9 idle speed actuator closed coil

  13. #13
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    Does your 98 have an idle control valve on mount next to the throttle body? If you do...check that

    Sent from my VS995 using Tapatalk

  14. #14
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    Quote Originally Posted by asianvenom View Post
    Does your 98 have an idle control valve on mount next to the throttle body? If you do...check that

    Sent from my VS995 using Tapatalk
    I replaced it a few months ago with a new Bosch, how could I test it though.

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