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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm} Total Produced: 71,212 - Years Produced: 1992 to 1999 |
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#1 |
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I'm trying to root cause some fault codes. These were thrown at first engine start after a very long down time where the engine was rebuilt and modified.
This are all "table 11" codes. If you have any input, I'd love to hear it. I'm getting 1b and 35 indicating problems with the idle speed actuator. Is this an idle control valve problem? I swapped to an M50 manifold setup if that has any bearing. Idle is very rough. I'm getting a bunch of O2 sensor errors (3d, Ca, E3, E4, Cb). This has to do with the SAP delete? I'm running a SAP SIM. Thoughts? One other thing, there is a "tick, tick, tick" coming from the TB area when the ignition is in the ON position. I did not notice this before. Is this normal? Thanks! --Joe
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My Techno Violet E36 M3 Journal Last edited by JitteryJoe; Sun, Jul-08-2018 at 04:44:50 PM. |
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#2 |
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Check battery voltage, likely your battery is marginal. Check fluid level and top up with distilled water. Let it sit on low amperage charger for a couple of days.
Tick-Tick-Tick is the vacuum purge valve cycling - normal. I had changed primary O2 sensors due to CE light, triggering ECU limp mode, ~ 4 months ago. NTK sensors. Recently got CE light for SAP, and bank 1 O2. Cleared the light and CE condition continued to present, so I changed both with an even cheaper brand, within a day CE returned to include bank 2 O2. Stopped by Interstate, and while my battery was only three years old it was showing low voltage, they recommended a low amp charge. Checked cell levels, they were a bit low and took more distilled water than I imagined. Charged the battery over two days and it’s been good since. Sent from my iPhone using Tapatalk Last edited by bluptgm3; Sun, Jul-08-2018 at 09:37:44 PM. |
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#3 |
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Thanks! All fluids levels are good. Battery is fine. It has been on a trickle charger. Good to know about ticking. Thought something was wrong there.
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Did you clean the ICV? What did you use? I've killed one before using Chemdip (my normal go to is brake clean and wd40).
Why are you using a simulator? These are junk IMO. I'd encourage you to get rid of that and just get the SAP tuned out. I can do this for you, just buy the cables: https://www.ebay.com/itm/BMW-OBD2-K-...ss!93644!US!-1 |
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#6 | |
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Can you easily remove the simulator and try to run it without to see if the o2 sensor errors go away? Have you tried clearing everything and trying to start again (before disconnecting the sim)? I thought I recalled issues with the simulators, but maybe I'm wrong. It's been 10 years since I last looked into it though. It's become incredibly easy to DIY this stuff in the tune since romraider and open ms41 have become available to us. |
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Can you revert back to the stock tune too? Just to eliminate possible issues.
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Yes, I'll try without the SIM and see what happens.
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#9 |
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Not without some help from Randy (Epic Motorsports)
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#10 | |
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![]() Keep us updated on the results of the sim removal. |
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