Chasing down fault codes

JitteryJoe · Sun, Jul-08-2018, 03:40:20 PM

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

bluptgm3 · Sun, Jul-08-2018, 04:17:28 PM

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

JitteryJoe · Sun, Jul-08-2018, 05:14:08 PM

Quote:

Originally Posted by bluptgm3

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.

Sent from my iPhone using Tapatalk

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.

Braymond141 · Sun, Jul-08-2018, 07:45:00 PM

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

JitteryJoe · Sun, Jul-08-2018, 08:34:13 PM

Quote:

Originally Posted by Braymond141

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

The ICV is new OEM. I used the SAP SIM as I was concerned about emissions testing. Randy Mueller flashed the ECU and asked about the SAP. I told him I had a SIM which is why he did not mess with it. Do you think the SIM could be causing the codes? I have a SIM cable and software Randy sent me (although I have not yet used it as I sent him my ECU unit). Thanks Brett. BTW, did you get my message about the trunk latch plate getting delivered?

Braymond141 · Sun, Jul-08-2018, 08:40:34 PM

Quote:

Originally Posted by JitteryJoe

The ICV is new OEM. I used the SAP SIM as I was concerned about emissions testing. Randy Mueller flashed the ECU and asked about the SAP. I told him I had a SIM which is why he did not mess with it. Do you think the SIM could be causing the codes? I have a SIM cable and software Randy sent me (although I have not yet used it as I sent him my ECU unit). Thanks Brett. BTW, did you get my message about the trunk latch plate getting delivered?

I didn't connect that that was you. Just saw your email, glad it showed up! Did you ever get your steering shaft extension?

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.

Braymond141 · Sun, Jul-08-2018, 08:45:10 PM

Can you revert back to the stock tune too? Just to eliminate possible issues.

JitteryJoe · Sun, Jul-08-2018, 08:58:40 PM

Quote:

Originally Posted by Braymond141

I didn't connect that that was you. Just saw your email, glad it showed up! Did you ever get your steering shaft extension?

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.

Yup, I received the steering shaft extension finally after weeks of messing about waiting on UPS to try and find the one they lost. Funny, about 2 weeks after I received the second one to make up for the one UPS lost, I got a call from UPS saying they found a package from Italy addressed to me. Both Giacomo and I had a good laugh. I had UPS send it back.

Yes, I'll try without the SIM and see what happens.

JitteryJoe · Sun, Jul-08-2018, 08:59:21 PM

Quote:

Originally Posted by Braymond141

Can you revert back to the stock tune too? Just to eliminate possible issues.

Not without some help from Randy (Epic Motorsports)

Braymond141 · Sun, Jul-08-2018, 09:17:41 PM

Quote:

Originally Posted by JitteryJoe

Yup, I received the steering shaft extension finally after weeks of messing about waiting on UPS to try and find the one they lost. Funny, about 2 weeks after I received the second one to make up for the one UPS lost, I got a call from UPS saying they found a package from Italy addressed to me. Both Giacomo and I had a good laugh. I had UPS send it back.

Yes, I'll try without the SIM and see what happens.

Darnit, I would have bought that second shaft extension. I need another

Keep us updated on the results of the sim removal.

Sun, Jul-08-2018, 03:40:20 PM	#1
JitteryJoe Registered User Join Date: Apr 2010 Posts: 712 In the garage: '98 BMW M3 '11 BMW M3 (SOLD) Reputation: 0 Location: Seattle	Chasing down fault codes 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 __________________ My Techno Violet E36 M3 Journal Last edited by JitteryJoe; Sun, Jul-08-2018 at 03:44:50 PM.

Sun, Jul-08-2018, 04:17:28 PM	#2
bluptgm3 Registered User Join Date: Aug 2008 Posts: 309 Reputation: 0	Chasing down fault codes 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 08:37:44 PM.

Sun, Jul-08-2018, 07:45:00 PM	#4
Braymond141 Registered User Join Date: Aug 2005 Posts: 20,397 Reputation: 0 Location: Oakhurst, CA	Re: Chasing down fault codes 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 __________________ 1996 M3 Journal \| 1998 M3 Journal \| MSportParts \| @Braymond141

Sun, Jul-08-2018, 08:45:10 PM	#7
Braymond141 Registered User Join Date: Aug 2005 Posts: 20,397 Reputation: 0 Location: Oakhurst, CA	Re: Chasing down fault codes Can you revert back to the stock tune too? Just to eliminate possible issues. __________________ 1996 M3 Journal \| 1998 M3 Journal \| MSportParts \| @Braymond141

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