Emission Issues
 

Hello Xoutpost world im having a big issue right now for emission test so basically i got no communication when i went i sent it in to bmw and they said it had to be done by 20 pin obd under the hood the drive clean people said thats not aloud and it has to be done by 16 pin obd and that i have to fix this issue and make the emission test machine work from there even tho i have paper work from BMW saying the both obd have power and work it needs to be done from under the hood.. can anyone give me some help with this please and thank you

I have a 20-pin to 16 pin adapter maybe you could wire that in to get 16-pin under the dash but more than like you have a cut wire somewhere

Emission checks via the 16-pin ODB port in the card should work on any E53 X5, as far as I understand.

Early cars have emission data ONLY on the 16-pin in the car - all other modules must be accessed via the 20-pin under the hood(bonnet).

BUT, the 16-pin inside the car will only work if the correct cap is installed on the 20-pin under the hood (bonnet). This cap loops the appropriate data lines back to the 16-pin connector. Without this cap in place, the 16-pin connector is dead.

At least, that my understanding of how things are arranged in the early E53 cars. Later cars have everything on the 16-pin ODB port. :dunno:

thanks for the reply .i have the adapter aswell but they said i cant use it that it has to be done from 16 pin.. and you really think i have a cut wire some where even tho bmw checked it out and said everything looks fine there?

hey wpoll i have no clue all i know i heard all x5 under 2002 have to be scanned from 20 pin under the hood but i dont know about the emission they told me 2014 and 2016 i had it done on obd so that it had to be done the same way :dunno:

and also i had BMW check out the 16 and 20 pin and they said both are working just fine

Some of this is not right, and I will guess that what wpoll is saying is exactly right. It makes sense. I would take that as the truest thing on this page so far.

I have a 2001, built pretty late, like June 2001, I think, and it definitely has the 16-pin only. No round 20-pin under the hood.

I've never had any problems at all (successful twice so far) getting it smogged here in CA. But I have had a problem on another car (Porsche) where the smog tech did not know exactly what to do until I had to very carefully and patiently explain it to him. Then it worked only after a long debate when he finally listened to me. Typical smog techs aren't exactly out-of-the-box thinkers and your situation and mine (with the Porsche) may require that.

If your car is stock (I'll assume it is, but if not, all bets are off), I really doubt that any law would expect you to make it non-stock so you can pass a test like this. I expect it is the smog station's responsibility to make it work, but they probably don't know as much as wpoll about this.

You might try phoning around first to see if you can find anyone who knows about this. Of course the standard thing is they'll act as if they have a Ph.D. in smog testing and you're in kindergarten, so be ready for that. But you'll probably either need to do what wpoll says and don't mention anything, or you'll need to find a place that knows to do that.

EDIT - I just noticed you're in Canada, right? If so, then I don't know. Completely different laws, so I don't know what they'd expect a private citizen to do. Somehow I had thought you were in CA (the Democratic Peoples Republic of Kalifornia).

Emission Issues
 

I just re read your post.

You are simply missing the cap to jumper the 20 port to the 16 port. I can find the pinout for you and you can make your own jumper set.

My wife has a 2000 1/2 x5 with the 20 pin port. (stupidly obly uses like FIVE or seven pins.

I call it 2000 1/2 because the 2001 officially has 16 pin yet hers has 20 and 16. I did notice recently when I was resetting her oil Service light the cap has jumpers in it. Are you saying your cap doesn't?

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Thanks for confirming, andrewwyn.

The cap I'm talking about is the factory dust cap that fits onto the 20-pin connector. Inside this cap there are jumpers and unless this cap is on the 20-pin connector (locked down) the inside 16-pin connector is dead.

https://c1.staticflickr.com/1/334/19...3db49324_b.jpg

If your cap is missing, then as andrewwyn suggested, you will need to jumper a few of the pins on the 20-pin in order to get the 16-pin functional.

http://i.imgur.com/eNVVnIll.jpg

Have a look at this thread...

https://xoutpost.com/bmw-sav-forums/...-icarly-2.html

Awesome yes that's exactly what I'm talking about. Just two jumpers.


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hey thanks for the replay i am in toronto ontario canada and mine was built april 2000 but its a 2001 4.4i.. and i went to different stations but they wont connect the round 20 pin adapter they say they will lose the machine and the drive clean test ppl (whice is goverment) said i need to repair it to make it wirk with the odb ll im likw i dont know what u want me to do i have paper work from bmw saying it need to be done that way but i dont know this been driving me crazy i just wanna drive my x5 lol the last time i did the emission i sent it to bmw but now they dont do it anymore im guessing because the test is free now so :dunno:

lol well i guess mine is a 2000 1/2 aswell. and im not sure if it does :dunno: i attach a pic of my round obd do u see a jumper on there

As long as that cap in installed (plugged in) the 16-pin OBD port in the car should work 100% for emission testing.

With the addition on the small wire link shown in the other pictures, the 16-pin ODB port in the car should work 100% for all diagnostics, emission testing included.

Ensure the 20-pin cap is on and go for the test. At least, that's how it should work.

If the emission testing station is trying to connect via the 16-pin when the 20-pin cap is off (open) it will fail.

Wow are you saying I can add that jumper and no longer need to do wife's car obd under the hood?


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I've not actually done it myself but folk here have and it's what I read, both on forums and in the technical literature (circuits etc.). :thumbup:

I don't know why anyone would not do this... unless they had other vehicles that use the 20-pin interface. ;)

when i went in for the test the emission computer would not communicate with the car and the 20 pin cap was closed not open so i got a fail and i went to another place and i got the same thing.. but i just seen that picture u posted and my cap does not have that jumper i see that u have is that what i need?

You shouldn't need the jumper for just emissions testing - the jumper on the cap is to enable access to the modules other than the engine and trans (via the 16-pin ODB connector), as the later E53 cars have.

Emission testing via the 16-pin connector was a legal requirement in some countries from as early as 1995, hence BMWs half-arsed solution to get it working on the early E53 cars.

In your case either the cap is incorrectly installed, faulty or you may have some other issue. I guess adding the jumper can't hurt, so why not try it?

where can i buy/find this jumper?

is this wire good to use as a jumper?

Should work by the looks of it. So long as it contacts both the pins it is wrapped around properly, it will work fine. Pin 2 ties to pin 20, at least in all the images I've seen. Presumably the factory fitted cap connects pin 17 to either pin or pin 20 (not sure which) but it doesn't matter - the suggestion is that a jumper from pin 2 to pin 20 will allow for full ODB access on the 16-pin connector (when the 20-pin cap is in place).

Not sure this wil sort your emission testing issues but as I said, what's to loose?

now how will i know if its working or not? i have one of those laptops for scanning the car but i dont know how to use it i could never get it to work

Did you previously try the laptop on the 16-pin OBD port? Maybe it will work now.

Unless you have some device that can scan the car, you can't really test the ports functions.

A cheap way to do this is to use a small Bluetooth or Wi-Fi ODB adapter and an app on your smart phone. BT for 'droid, Wi-Fi for iOS. I have the INPA/PASoft etc. laptop but I keep a small BT adapter in the glove box for emergencies away from home.

https://images.kogan.com/image/fetch...TELM327A_2.jpg

no i tried it on the round one under the hood and didnt get connection .. the one i have come in a cd software and i have to install it myself i bought it on ebay like 4 or 5 yrs ago and never got it to work.. but it has all the software that bmw has on my laptop it say its called romania diagnostic lunch pad.. and i trired it yesterday after i hooked up the pin and when i click on INPA i get no power to battery or ignition they both say off

Hmmm. Hard to know what to suggest next. You have a car with an unknown diagnostic system and a diagnostic system that has never talked to your car. Could be one problem, could be two (or more).

The only way to isolate where the issue lies is to have at least one known-good car or diagnostic system and proceed from there. Prove that either the car is faulty (although BMW say it's not) or that the diagnostics system isn't working.

16-pin won't work if 20-pin doesn't.

Sounds like a broken wire before the 20 pin connector.

Find the broken wire or fuse and I'm betting both 20 pin and 16 pin come back to life

lol thats the thing bmw checked both of them.. wires and all they said and they got a successful diagnoses reading from 20 pin and before i moved my old mechanic would read the car aswell fine from under the hood

thats what i am gonna try my father in law has a e70 x5 gonna find where the obd port is on there and hook up my laptop and see if i get a reading

well i just try the scanner on the e70 and i didn't get connection so i guess i didn't install the program right . well i guess i gotta figure something else so see it the jumper worked

hey guys so i ended up buyin a scanner on kijiji for $75 BMW scanner OBD II - Autophix ES910 and it successfully scanned my x5 from the 16 pin obd.. and i tried out the scanner and check the transmission just to see if the scanner worked and i got a code 22 ATF Temperature so i guess its working lol

now to try out the emission test

good luck! :thumbup:

Look through the scanner for I/M readiness or similar. You can pre test before going in.

If you reset ses light you have to start from scratch getting ready


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i looked on the scanner i didnt find anything like that on there i wish i would have tho :rofl:

Emission Issues
 

On my scanner I have the choice of BMW or generic obd. Often it's easier to find what I need in the generic path.

I was able to find a readout of all emissions monitors and even compare to my first run where I expected not to pass (two monitors not ready) but it matched the readout from the smog test so I knew I could trust my scanner.

What model scanner? Or using ap on phone?

i wonder if mine has generic path how would i know?

What scanner are you using? On mine I pick BMW or GM or generic OBD


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the scanner i got is called autophix es910 and mkine i can only scan bmw mini or rolls royce

and also a little update on my issue i brought the x5 in for the test and thank the god's up there their scanner communicated with the x5 and i passed ..
thanks again everyone for all the help