FIXED!!!!!-Smog failed due to EML light, did a drive cycle, now car is messing up!

[bcredliner]

To make sure I am clear, you are back to a no run state unless you spray carb cleaner, and then it only runs for a few seconds? Assuming that is correct, the engine is not getting enough or any fuel some or all of the time.

Upallnight, while snippy, is correct, the FIRST next thing to do is test fuel pressure. If you rent a gauge pick up a fuel filter while you are there. If pressure is low you can try changing the filter and then test it again. If it still does not pass the test we have pinpointed the problem is the fuel pump.

[diddy0071]

Originally Posted by upallnight

Sounds more like a dying fuel pump. Read one of my earlier postings about my E34. Yes a dying fuel pump can go bad just that quickly. That's why I kept on asking if you can perform a Fuel Pressure test at the Fuel rail. You could buy/rent a fuel pressure gauge at Pep Boys or Autozone or O'Reilley or Advance Auto.

You think it frustrating that your car don't run, it's even more frustrating helping people that don't want to follow the advice provided to them.

Think I'm going to spend the day out on the Lake with the kids jet skiing or jet boating.

I have no other transportation, so I can't just go to the store whenever possible and purchase the fuel filter and the fuel pressure gauge. I'm working on that. I do appreciate your help and I'm sorry if I am frustrating you. I have done nothing but what you guys have recommended. I've checked as many vacuum lines as I can. I am going to check the vacuum line at the oil plug, but I can't get underneath the vehicle at the moment.

Enjoy your time at the lake. If you feel you have exhausted your efforts in trying to pinpoint the problem for me, you are welcome to discontinue your efforts. I appreciate your efforts all the same and thank you for selling me the DISA valve.

[diddy0071]

Originally Posted by bcredliner

To make sure I am clear, you are back to a no run state unless you spray carb cleaner, and then it only runs for a few seconds? Assuming that is correct, the engine is not getting enough or any fuel some or all of the time.

Upallnight, while snippy, is correct, the FIRST next thing to do is test fuel pressure. If you rent a gauge pick up a fuel filter while you are there. If pressure is low you can try changing the filter and then test it again. If it still does not pass the test we have pinpointed the problem is the fuel pump.

That is correct. I'm getting dressed in my car working clothes and will be out there shortly continuing my efforts.

[diddy0071]

Searching for fuel filter replacements, does this fuel filter Amazon.com: Mann-Filter WK 532 Fuel Filter: Automotive have the pressure regulator attached? I can't seem to find clarification. There is this other one
Amazon.com: Hengst Fuel Filter with Regulator: Automotive
That says it comes with the pressure regulator. The Mann-Filter is cheaper. Anyone have any ideas?

[bcredliner]

I don't think upallnight will give up. If you can't get to the store to get pressure tester you can test for any flow at all at the fuel rail. you will need a helper to turn the key on and off so you can be under the hood and catch any fuel. Or, disconnect the line at the fuel filter so you can check it without the fuel filter in. Obviously, you have to be extremely careful and prepared for a potential fire.

[diddy0071]

Originally Posted by bcredliner

I don't think upallnight will give up. If you can't get to the store to get pressure tester you can test for any flow at all at the fuel rail. you will need a helper to turn the key on and off so you can be under the hood and catch any fuel. Or, disconnect the line at the fuel filter so you can check it without the fuel filter in. Obviously, you have to be extremely careful and prepared for a potential fire.

Where can I check the pressure? I see no Schraeder valve on my car. http://i.imgur.com/uy5voq1.jpg

Also, is my DISA valve in correctly? http://i.imgur.com/DwDBmZf.jpg

Anyways, I gave it overnight, removed and replaced the fuel relays and unplugged/plugged in the Fuel Pump. Still not starting. It is wierd because it was fine yesterday (at least the idling was) and now it is turning over, but no starting. Starting to sound more and more like a fuel issue. Fuel Filter or Fuel Pump. I'm calling around to see where I can find a fuel pump, as for the fuel filter I am looking to amazon. I posted a link to a Mann-Filter Fuel Filter, but it doesn't say if it comes with the fuel pressure regulator or not. Does anyone else know about these things?

I figure I might as well change the fuel filter anyways since it has never been changed to my knowledge, and I have driven it almost 50k miles. As for the fuel pump, I am looking to see if I can get a used one cheap from a dismantler and replace it to see if that fixes the issue.

[TerminatorX5]

the OE filter comes with pressure regulator built in - i thnk it is INSIDE the tube, so if anyone is selling the unit as a BMW fuel filter, the regulator should be inside

[diddy0071]

Originally Posted by TerminatorX5

the OE filter comes with pressure regulator built in - i thnk it is INSIDE the tube, so if anyone is selling the unit as a BMW fuel filter, the regulator should be inside

Isn't the round cylinder at the tip of the fuel filter the regulator?

[TerminatorX5]

you are considering an aftemarket fuel filters for $48 and $58... there is an OE filter for $78, which is $30-20 more expensive, but GUARANTEED to fit... with free shipping...

BMW 13321709535 Genuine Factory Original Fuel Filter | eBay

[diddy0071]

Originally Posted by TerminatorX5

you are considering an aftemarket fuel filters for $48 and $58... there is an OE filter for $78, which is $30-20 more expensive, but GUARANTEED to fit... with free shipping...

BMW 13321709535 Genuine Factory Original Fuel Filter | eBay

Shipping is my concern. Amazon offers me prime shipping, I could get the part in as soon as Tuesday cheap.