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Old 03-19-2017, 12:59 PM   #1
JDA33
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OBDFusion - NJ Emissions concerns

Hey all,

Still can't thank everyone enough for all the help and knowledge I've gained from cruising around this site. From the FJOF thread, he had said to start a new thread when we do this so, I'm just following that.

Prior to any work I did with the car, I was throwing 8 different codes, the car wouldn't start properly and required me constantly playing with the throttle upon start up. Also the SEL was a nice constant reminder something was wrong. Luckily though after everything I've done which I'll list out a bit, the cold start after 6 days sitting and a blizzard, was beautiful. No need for giving it any gas, it sounded amazing, and that pesky SEL was finally off.

Here's my problem. I have a NJ inspection coming up soon and the OBDFusion app is telling me that the car is not going to pass even though the SEL is off. I'm also still throwing those annoying P0171 and P0174 codes. I'll get more logs uploaded that FJOF likes to see for baseline, but this weather is messing that up. (RWD and Tires aren't in great shape atm). I was wondering if anyone could take a look at these files and see if anything is standing out to them. I'm only posting this somewhat early because of this upcoming inspection that is overdue.

Some of the things I've done that would play into this:
- CCV and all CCV hoses (They were in terrible shape.)
- Both intake boots from MAF to Throttle Body
- Upgraded DISA unit using the GAS upgrade kit (Seemed to be in very good condition anyways but, figured it was a disaster waiting to happen)
- Redid all secondary air pump lines
- Cleaned and redid most of the components for the Intake like the Air check valve, all the lines, electric valve that goes from SAP to the little non return valve, put on a new gasket, put a nice new cap on that little nipple that leaks all the time and goes to nothing.
- VCG, Sparkplugs, New Ignition Coils
- Fuel filter and return line from fuel filter to Intake system
- Dipstick O-ring

I can give any kind of part numbers or process for any of the stuff I listed above. I have everything written down and logged and did all the work myself.

Some things I'm thinking that could be the cause of these codes would be the fuel pump itself, and maybe just crap fuel? I wound up draining some of the fuel that was in it from the previous owner and put in new good fuel, and that alone made a world of difference to the idle and start up of the car. Please let me know what you guys think. I'm open to any and all criticism/opinions. Also please let me know if you guys need anything else or if I need to redo anything, this is my first time uploading the data like this and it's likely I've made a mistake.

Here is the link to the most recent start from today: (Cold Start after sitting for 6 days through the blizzard)
https://www.dropbox.com/s/6izs6lcc18...zard.html?dl=0
CSV Log:
https://www.dropbox.com/s/99eb754y0q...31910.csv?dl=0

Last edited by JDA33; 03-19-2017 at 01:25 PM. Reason: Forgot a Log Link
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Old 03-19-2017, 01:04 PM   #2
markusmarkus
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Quote:
Originally Posted by JDA33 View Post
Hey all,

Still can't thank everyone enough for all the help and knowledge I've gained from cruising around this site. From the FJOF thread, he had said to start a new thread when we do this so, I'm just following that.

Prior to any work I did with the car, I was throwing 8 different codes, the car wouldn't start properly and required me constantly playing with the throttle upon start up. Also the SEL was a nice constant reminder something was wrong. Luckily though after everything I've done which I'll list out a bit, the cold start after 6 days sitting and a blizzard, was beautiful. No need for giving it any gas, it sounded amazing, and that pesky SEL was finally off.

Here's my problem. I have a NJ inspection coming up soon and the OBDFusion app is telling me that the car is not going to pass even though the SEL is off. I'm also still throwing those annoying P0171 and P0174 codes. I'll get more logs uploaded that FJOF likes to see for baseline, but this weather is messing that up. (RWD and Tires aren't in great shape atm). I was wondering if anyone could take a look at these files and see if anything is standing out to them. I'm only posting this somewhat early because of this upcoming inspection that is overdue.

Some of the things I've done that would play into this:
- CCV and all CCV hoses (They were in terrible shape.)
- Both intake boots from MAF to Throttle Body
- Upgraded DISA unit using the GAS upgrade kit (Seemed to be in very good condition anyways but, figured it was a disaster waiting to happen)
- Redid all secondary air pump lines
- Cleaned and redid most of the components for the Intake like the Air check valve, all the lines, electric valve that goes from SAP to the little non return valve, put on a new gasket, put a nice new cap on that little nipple that leaks all the time and goes to nothing.
- VCG, Sparkplugs, New Ignition Coils
- Fuel filter and return line from fuel filter to Intake system
- Dipstick O-ring

I can give any kind of part numbers or process for any of the stuff I listed above. I have everything written down and logged and did all the work myself.

Some things I'm thinking that could be the cause of these codes would be the fuel pump itself, and maybe just crap fuel? I wound up draining some of the fuel that was in it from the previous owner and put in new good fuel, and that alone made a world of difference to the idle and start up of the car. Please let me know what you guys think. I'm open to any and all criticism/opinions. Also please let me know if you guys need anything else or if I need to redo anything, this is my first time uploading the data like this and it's likely I've made a mistake.

Here is the link to the most recent start from today: (Cold Start after sitting for 6 days through the blizzard)
https://www.dropbox.com/s/6izs6lcc18...zard.html?dl=0
Those codes are classic indicators of vacuum leaks. You need to have the intake system smoke tested to find all the leaks. There are numerous caps and hoses that feed the intake, and they all can leak.
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Old 03-19-2017, 01:20 PM   #3
CO_Steve
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I couldn't find a log file in the dropbox, just the system report.
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Old 03-19-2017, 01:24 PM   #4
JDA33
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Here is the link to the CSV, Sorry about that Steve, should be what you're looking for:
https://www.dropbox.com/s/99eb754y0q...31910.csv?dl=0

Thank you for the recommendation Markus, I'll take a look into getting a smoke test done. Any suggestions on an efficient way to do it?
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Old 03-19-2017, 01:28 PM   #5
CO_Steve
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Thanks, I like to study these logs and then see what the experts say later.
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Old 03-19-2017, 02:15 PM   #6
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Just a quick look and here are some initial comments.

1. Lean codes triggered @ idle, STFT were sky high. Not sure if this Freeze Frame was triggered before any repairs or after all your repairs.

2. Bank #1 Pre-cat O2 sensor may be a bit lazy. I would like to see a cold start Log from the engine sitting overnight.

3. Bank #1 Post-cat O2 sensor Voltage is WAY screwy, assume that the sensor may be the problem? Might need a quick Log with the Post-cat O2 sensors disconnected. The O2 sensor could be bad or there could be an exhaust leak near the Post-cat O2 sensor.

4. MAF reading is drifting off a bit low at idle, under reporting. I would not jump at replacing it yet.

5. I would like to see a warm idle Log to see what the MAF and Fuel Trim values look like. The engine was still cold in this first Log and the cooler temp may have masked a few things.

6. You may need to check for crankcase and power brake booster air leaks.

7. You will need to clear the codes to restart the Readiness Monitor process. The SAP Readiness should clear on the first cold start if everything is working properly, but you will need to get the car on the road for most of the other Readiness Monitors to clear. If the O2 sensors are lazy you will have a problem getting all but the Evap Monitors to clear.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 03-26-2017, 01:04 PM   #7
JDA33
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Finally no more codes from the car. Took it for a nice little drive after cleaning it. Unfortunately though it's still telling me it's not ready for emissions testing in NJ.
Here are two logs from the drive. One is a log from during part of the drive on the way home, and the other is a log from sitting in my driveway when getting home.
It seems like my bank 1 sensors are giving some weird numbers, kinda going all over the place. No more P0171 or P0174 anymore though so, I'm happy with that.
Let me know what you guys think, and thank you JFOJ for the quick reply. Hopefully these additional logs will help give you some more insight. Since there are no lean codes being thrown I'm wondering if it's just the O2 sensor going bad.

Log from during part of the the drive:
https://www.dropbox.com/s/1jn7mcegqx...14832.csv?dl=0

And here's the log from sitting in the driveway after the drive:
https://www.dropbox.com/s/n89gptow2y...20624.csv?dl=0
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Old 03-26-2017, 01:25 PM   #8
jfoj
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I would like to see a current Diagnostic Report with the engine at warm idle, ignore any pop up warning in the App.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 03-26-2017, 01:38 PM   #9
JDA33
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Would you like the diagnostic report from last night, or would you like a new report for today?
I'll make sure the report is taken with the engine at operating temp.
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Old 03-26-2017, 01:41 PM   #10
jfoj
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Lets start with what you have on hand.

I really could use a Diagnostic Report with every group of Logs, allows me to see other useful data.
__________________
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 03-26-2017, 01:44 PM   #11
JDA33
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Sure thing, here is the report associated with the logs from last night:
https://www.dropbox.com/s/2beuw7kjrj...3-25.html?dl=0

Just let me know anything else you need to see. I have all the logs I've ever run on the car saved to my computer as well.
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Old 03-31-2017, 11:37 AM   #12
JDA33
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The weather has finally been nice and I got some free time on my schedule so I got some new tires on the car and have been taking it for some nice highway cruises. Irrelevant to this thread but, put some Cooper CS3 Touring tires on the car, and what a difference. Absolutely love the ride of these tires.

Anyways, here is a cold start log from yesterday. I know I've posted some Cold Starts already, but the log from yesterday is also the day I brought the car to inspection. Passed with no issues at all and the car is inspected until 2019
https://www.dropbox.com/s/7ardaamvrp...25413.csv?dl=0

The Diagnostic Report for this log I can't find, must've messed up with saving it. But it said the car wasn't going to pass emissions like all the others and it did so, I guess either the guy was giving me a break since he was a cool dude, or they just aren't as thorough in NJ as the app thinks.
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Old 03-31-2017, 12:45 PM   #13
jfoj
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Run a Diagnostic Report now and post it, I would be curious if all of the Readiness Monitors are clear after driving it on the highway, which is usually what is needed.
__________________
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 03-31-2017, 01:04 PM   #14
JDA33
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Yeah it seems like that's all it needed. Here's a report I just ran, says it's ready for testing.

https://www.dropbox.com/s/p6h6irl8ev...3-31.html?dl=0
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Old 03-31-2017, 05:37 PM   #15
jfoj
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My guess is your car has all original O2 sensors still installed because the Catalyst Monitor did not clear.

A "good" car will clear the Catalyst and O2 Sensors in a very short cruise at 40-50 MPH, often in as few as 3-5 miles.

The Pre-cat Bosch 13477 are under $40 on Amazon, the Post-cats are typically more expensive, but I think around $50 each?
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 06-08-2017, 12:47 PM   #16
JDA33
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Well, it has been a few months since this issue was resolved and I'd like to get some feedback from you guys. I have a log from my drive yesterday and I'm wondering what would be triggering these codes. There is no SES light but I am still getting the lovely P0174 and P0171. Also it feels like the car is missing some of the bottom end torque. It should definitely be more peppy at lower RPM.

To Jfoj: Thank you very much for your help up to this point, and I've used much of it to finally get the car running well. I'm just wondering if these newer logs since the car has finally had time to "clean" itself out a bit are still aligning with failing O2 sensors.

My assumption is that I need to redo my vanos seals for the low end torque issue. But I'm wondering if I'm having more issues than just that, especially since there are still codes. Along with all the work listed above, I have a nice new VDO fuel pump on its way, and will be installing it this weekend. I do not know when/if it was replaced, and I sure as hell don't want to find out during a trip this summer. I'm not sure if that alone is creating a problem and soft failing to give me the readings I have, or if there is an issue with my MAF and/or O2 sensors. I wish I knew more about how to interpret this data and what solid baselines were, but that will hopefully come with time.

Link to CSV Log:
https://www.dropbox.com/s/c9keoi6giq...04242.csv?dl=0

Last edited by JDA33; 06-08-2017 at 01:08 PM.
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Old 06-08-2017, 02:16 PM   #17
jfoj
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Run a Diagnostic Report and post a link for it.

LTFT are statically high in the most recently Log. MAF value looks a low at idle.

Would need to review O2 sensor info, but not likely caused by the O2 sensors based on a quick look.

You say there are codes but no SES/CEL/MIL, are the codes Pending?

Does the SES/CEL/MIL work?
__________________
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 06-08-2017, 02:42 PM   #18
JDA33
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Here is a report I have stored in OBD from a few days ago. Will take another later after I get out of work.

The codes are not pending nor permanent, they are confirmed. The SES light works, it comes on when my key is in on position prior to starting car. Once I start the car the SES light goes away. The SES light was constantly illuminated a few months ago when I was having the rough idle issues. After all the work I did I did not see the SES light on in the past three months except for once. I was driving on the highway for about 50 miles at a constant 75 or 80 MPH. SES light came on, I stopped at a rest stop to grab something to eat/use BR and when I started car the light was no longer illuminated. I would imagine the SES light works, as for why it is not on since there are codes I'm not entirely sure.

Yeah the MAF looks a bit low at idle compared to some of the other logs I've looked at around here, I'm gonna try giving the MAF a good cleaning when I do the fuel pump and hope that will make a difference.

Once again, thank you for all the help.

Link to Diagnostic Report:
https://www.dropbox.com/s/oviy56jwjh...6-08.html?dl=0
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Old 06-08-2017, 02:52 PM   #19
jfoj
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You can try cleaning the MAF, HOWEVER, do not expect much as an end result.

The MAF appears to be under reporting by around 8% which is a fair amount. If you baseline the MAF g/s reading before and after cleaning, if you do not see a significant increase in the MAF reading, the MAF probably should be replaced with a quality Siemens/VDO MAF from a reliable source.

No $50 ebay or local parts store MAF's. They do not work properly.
__________________
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 06-08-2017, 03:24 PM   #20
JDA33
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Quote:
Originally Posted by jfoj View Post
You can try cleaning the MAF, HOWEVER, do not expect much as an end result.

The MAF appears to be under reporting by around 8% which is a fair amount. If you baseline the MAF g/s reading before and after cleaning, if you do not see a significant increase in the MAF reading, the MAF probably should be replaced with a quality Siemens/VDO MAF from a reliable source.

No $50 ebay or local parts store MAF's. They do not work properly.
When it comes to something like the MAF I wouldn't want to cheap out. Pretty much anything I did engine related I went with what was OEM or better. (In the case of something like the hydraulic tensioner or URO water pump pulley). The only things I've been not as worried about OEM have pretty much been all cosmetic or something like a window regulator or vacuum hose.

What would be a number I'd like to see from the MAF at idle? I'll be sure to upload another log after new fuel pump install regardless of if the problems persist. Since the fuel pump could be behind or contributing to some of the issues, I'll wait on the other parts until after installing it. Just wasn't sure if anything was really slapping you in the face numbers wise.
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