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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 07-31-2016, 05:04 PM   #21
Tini_Lynn
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Its an Actron don't know the model rn
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Old 07-31-2016, 05:06 PM   #22
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Yeah after I deleted the code the stft was showing something and ltft wan at 0
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Old 07-31-2016, 05:23 PM   #23
jfoj
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Well you only have the Acton tool at the moment, however, I would toss it directly in the trash if you gave it to me.

HIGHLY suggest you get OBDFusion and learn how to use all of its features, less than $20 on Android and less than $30 on iProducts. This includes the interface.
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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 07-31-2016, 05:54 PM   #24
Tini_Lynn
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What the actual f*ck. Ok I had already got a new MAF when I seen that it was probably A wiring problem. So I put in the new one and now it starts everytime but idles like sh*t. And I'm getting enhanced codes for P0300, P1345 and P1347.
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Old 07-31-2016, 05:56 PM   #25
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Oh and if I have no MAF in at all my car starts and runs f*cking perfect!
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Old 07-31-2016, 05:59 PM   #26
jfoj
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You are a new user here.

You probably do not understand how much data is needed to actually help you.

OBDFusion can Log and provide data for each PID and then we can see what is going on.

If you have the old MAF, put it back on the car.

Learn how to Smoke Test.

Learn how to provide Freeze Frame data.

Suggest you look at this post - http://forum.e46fanatics.com/showpos...0&postcount=19


Learn how to provide warm idle Fuel Trim 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 07-31-2016, 06:00 PM   #27
jfoj
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BTW, when you unplug the MAF, the fuel management system goes into a Speed/Density mode with an overly Rich fuel Map that usually masks vacuum leaks and Lean problems.
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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 07-31-2016, 06:22 PM   #28
Tini_Lynn
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Alright I ordered the adaptor for the obd fusion I should get it here in a week in the mean time I'll try to learn to do a smoke test.

Last edited by Tini_Lynn; 07-31-2016 at 06:57 PM.
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Old 08-02-2016, 02:15 PM   #29
lingon300k
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Quote:
Originally Posted by jfoj View Post
Learn how to Smoke Test.
How do you smoke test without a machine?
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Old 08-02-2016, 02:25 PM   #30
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YouTube is your friend!



Cheap fluid transfer pump from your local auto parts store or Amazon.

http://www.amazon.com/ABN-Multi-Use-...fer+pump&psc=1

A few rubber gloves, rubber bands and some cheap mini cigars from our local gas station or convenience store.

Also get a good, bright LED flashlight to locate the escaping smoke. Look deep in the engine compartment and under the engine if needed. Do not forget the dipstick guide tube and the lower CCV oil return line. These areas may be hard to see from above in the engine compartment.

After looking for intake air leaks, remove the oil fill cap and allow the crankcase to fully fill up with smoke, then replace the oil fill cap. Check for cracks in the valve covers and leaks around the grommets, half moons and around the perimeter of the valve cover.

Common areas of leaks:

Upper and lower intake boots
Upper intake boot around F connector
DISA main O-ring and shaft area
Vacuum hoses under the rear of the intake
Fuel pressure vent hose that connects to the F connector on the upper intake boot and under the drivers floor board where it connects to the fuel pressure regulator
CCV and hoses, especially the lower oil return line
Dipstick and dipstick guide tube
Oil fill cap
Valve cover gaskets and cracked valve covers
SAP vacuum line to Kombi valve on front of engine, this will not leak smoke because of the control valve under the rear of the intake
Power brake booster sucking jet pump and hoses.

Note that the brake booster usually cannot be smoke tested because of the input vacuum check valve at the booster connection.

After you find a leak, make sure you re-test as there can be many smaller leaks on these cars.
__________________
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

Last edited by jfoj; 08-02-2016 at 02:26 PM.
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Old 08-02-2016, 02:34 PM   #31
lingon300k
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Quote:
Originally Posted by jfoj View Post
YouTube is your friend!



Cheap fluid transfer pump from your local auto parts store or Amazon.

http://www.amazon.com/ABN-Multi-Use-...fer+pump&psc=1

A few rubber gloves, rubber bands and some cheap mini cigars from our local gas station or convenience store.

Also get a good, bright LED flashlight to locate the escaping smoke. Look deep in the engine compartment and under the engine if needed. Do not forget the dipstick guide tube and the lower CCV oil return line. These areas may be hard to see from above in the engine compartment.

After looking for intake air leaks, remove the oil fill cap and allow the crankcase to fully fill up with smoke, then replace the oil fill cap. Check for cracks in the valve covers and leaks around the grommets, half moons and around the perimeter of the valve cover.

Common areas of leaks:

Upper and lower intake boots
Upper intake boot around F connector
DISA main O-ring and shaft area
Vacuum hoses under the rear of the intake
Fuel pressure vent hose that connects to the F connector on the upper intake boot and under the drivers floor board where it connects to the fuel pressure regulator
CCV and hoses, especially the lower oil return line
Dipstick and dipstick guide tube
Oil fill cap
Valve cover gaskets and cracked valve covers
SAP vacuum line to Kombi valve on front of engine, this will not leak smoke because of the control valve under the rear of the intake
Power brake booster sucking jet pump and hoses.

Note that the brake booster usually cannot be smoke tested because of the input vacuum check valve at the booster connection.

After you find a leak, make sure you re-test as there can be many smaller leaks on these cars.
Yes. I've seen that before but forgot about it entirely.

Have you tried this? Does it work well?

I don't have any reason to smoke test the BMW right now, but my Volvo is desperately in need of it.
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Old 08-02-2016, 02:53 PM   #32
jfoj
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Quote:
Originally Posted by lingon300k View Post
Yes. I've seen that before but forgot about it entirely.

Have you tried this? Does it work well?

I don't have any reason to smoke test the BMW right now, but my Volvo is desperately in need of it.
Cheap and easy to do.

Cheap fluid transfer pump that is available at almost any auto parts store.

https://www.amazon.com/Hopkins-10803...+transfer+pump

A few rubber gloves and rubber bands and some cheap $3 cigars from the local gas station or convenience store.

Does not matter the make or model of car or truck, same procedure. Check intake and crankcase.
__________________
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 08-05-2016, 01:40 PM   #33
Tini_Lynn
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Ok I did a smoke test and didn't see smoke leaking out anywhere except a small amount where I didn't have my rubber bands tight enough. I'm gonna try again tonight when it's darker and I can use the flashlight hopefully and leaks would be more visible. And my veekpeek (I think that's what it was) should be showing up some time today so I should be able to get some better readings.
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Old 08-05-2016, 05:32 PM   #34
Tini_Lynn
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Ok my MAF is still showing at 0.00 it's in lbs/min not grams/second. Idk how to change that. My FTRM values are kinda confusing. This is warm idle. I have one showing bank 1 another says bank 2

Bank 1: ST = -6.25%. LT = 0%
Bank 2: ST = -9.38%. LT = 0%

It also shows Short term fuel trim values for each sensor. Idk what this means so I will just post them all

Bank 1: Sensor 1 = -7.03% | Sensor 2 = 99.22%
Bank 2: Sensor 1 = -10.16% | Sensor 2 = 99.22%
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Old 08-05-2016, 05:37 PM   #35
Tini_Lynn
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On my freeze frame all the fuel trim values are at 0%
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Old 08-05-2016, 05:40 PM   #36
Tini_Lynn
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And this data is using the OBD fusion that was suggested
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Old 08-05-2016, 05:48 PM   #37
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Note: idk if this OBD reader is supposed to do this but on my dashboard on the OBD the batter voltage meter. While the car is running my voltage keeps dropping to 0 and then popping back up to 13.5v
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Old 08-05-2016, 06:30 PM   #38
Tini_Lynn
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Since you said that I shouldn't be getting a 0 MAF reading I was googling causes of that and found a forum (not BMW specific) with a similar problem the issue ended up being the MAF connection to the computer... Now just to figure out how to find which connection that would be lol
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Old 08-05-2016, 07:06 PM   #39
jfoj
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You need to learn how to add gauges to the dashboard on OBDFusion. Use Google, YouTube, spend 20 minutes playing with the App.

Change the MAF reading from lbs/min to g/s under Settings, Units, Airflow as I recall.

Read this and set up Logging properly. PDF - http://forum.e46fanatics.com/showthread.php?t=1097893

Watch the MAF reading on the Dashboard while the engine is running and make sure the MAF is plugged in, then wiggle and pull on the MAF wiring near the MAF and near the wiring box at the throttle body and see if the MAF value all the sudden starts to appear.

You either have a bad MAF, which they rarely hard fail and have no output, or a MAF connection/wiring problem.

DO NOT buy a MAF from the local auto parts store. You will regret it. A quality MAF that will actually work will set you back close to $200. Borrow on for a test if you can, even if it is not for the car specifically. If it has a similar connection and is a Siemens/VDO, it could be used to test.

There are 3 and 5 wire MAF. So this is the first hurdle.
__________________
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 08-06-2016, 10:45 AM   #40
Tini_Lynn
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Oh snap. This thing it more awesome than I thought. I had been playing with that app for a couple hours but I still didn't know I could add stuff. So I added a dash board with Fuel trim values and labeled them. And I got the MAF unit switched. Also set up the logging as requested. You, idk who you are but you are some kind of super hero cause I've already learned so much. Do you have anyother suggested gauges I should add? I had also already returned the MAF I had bought. Luckily they took it back. I agree it's more likely a problem somewhere with the wiring. So I'm gonna try and dig around a little more today. I'm usually in a hurry cause where I live doesn't like you working on your cars so I get like and hour time limit before I have to put everything up. Honestly most of yesterday's hour was spent getting my car started and trying to figure out the app. I also spent a good 10min wondering why I couldn't post any responses on here before I realized I was still connected to the veekpeek ***55357;***56837; Thanks so much for all this help btw!
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