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  #1  
Old 05-30-2022, 07:23 PM
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dartiii is on a distinguished road
Turns over and dies

Car turns cranks, turns over and immediately dies.
It is an 03 3.0 X5 with 199k miles. Here’s some background:
-Spent the past month or two with the car in the garage doing the following:
- replaced intake manifold gasket, coolant pipes, starter, power steering hoses and reservoir, valve cover gasket, ignition oils and plugs, vacuum valve, vacuum lines, ccv components, oil, filter, dipstick o rings.

Put the car back together and it will not run. It has gas. Spark and air.

It turns over but immediately kills?

Last edited by dartiii; 05-30-2022 at 08:52 PM.
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  #2  
Old 05-31-2022, 07:02 AM
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Fuel pressure is my first guess. Does it have any codes?
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  #3  
Old 05-31-2022, 07:37 AM
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It show no codes (using a cheap obd scanner). No codes pending.

The fuel level was nearly empty before starting…. Tooped it up to ~ 1/4 with a jerry can. I have pressure at the rail but don’t have a pressure gauge

Thanks for your reply!
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  #4  
Old 05-31-2022, 07:48 AM
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You'll need at least 1/2 tank or more. It's a saddle tank. One side gets pumped into the other side. The driver side runs it. I think it's fine. Add more fuel to it.
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  #5  
Old 05-31-2022, 07:51 AM
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Thanks, X5Chemist. Was searching through the forums last night and was reminded of the saddle tank. Appreciate you confirming a good next, simple step is more fuel…. Will grab some more and update the thread. Thanks!
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  #6  
Old 05-31-2022, 09:47 AM
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UPDATE: now have 3/4 tank and unfortunately same result. Cranks & starts then immediately kills. I purged fuel at the fuel rail and have fuel pressure (no pressure gauge).

I have started the car 20 or more times and each time it starts then kills. If I give it gas while cranking it will start and surge but still immediately kills. Any other ideas?
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  #7  
Old 05-31-2022, 09:55 AM
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unplug your maf and see if it starts. also, make sure none of your o2 wires are pinched.

it would be really helpful to plug into a real diag tool. starts then dies immediately can be an EWS or maybe DME issue.
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  #8  
Old 05-31-2022, 10:00 AM
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Thanks, Nick. Will try the MAF unplugged now and hope to get my hands on a good diagnostic solution. Recommendations welcome and I know there’s a lot of threads on that topic too
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  #9  
Old 05-31-2022, 10:08 AM
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Quote:
Originally Posted by dartiii View Post
Thanks, Nick. Will try the MAF unplugged now and hope to get my hands on a good diagnostic solution. Recommendations welcome and I know there’s a lot of threads on that topic too
DIS / INPA / ISTA. I'm not sure what other tools can do an EWS alignment.
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2011 M3
2006 Sierra 2500HD 4WD LBZ/Allison
2004 X5 3.0i 6MT
1995 M3 S50B32
1990 325is
1989 M3 S54B32

Hers:
1989 325iX
1996 911 Turbo


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  #10  
Old 05-31-2022, 10:12 AM
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Yea, I was going to say check the MAF sensor next. Check all the electrical plugs you disconnected. Plus, check the fuses! Key on, use a test light on important fuses. Does the RPM gauge move when cranking?
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