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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Injectors



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      11-06-2022, 03:33 PM   #1
BlueWaterMetallic
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Injectors

Hey, I was driving today and my service engine soon light came on, the car however wasn't in limp mode or down on power. Today though, I had to go to work and on my way back it threw itself into limp mode. I get home and use an OBD2 scanner and it says that all of the cylinders have had misfires.(codes:P0300, P0301, PO302, PO303, etc) I'm leaning toward fuel injectors cause my oil smells like fresh pump gas and it would be unlikely that all of my plugs and coils failed at once. I was wondering if this sounds like injectors or something else.

also is it safe to drive?

Last edited by BlueWaterMetallic; 11-06-2022 at 03:52 PM..
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      11-14-2022, 12:02 PM   #2
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HPFP failure

Just got codes cleared and the service engine soon light came back with fuel pressure. So, taking it to get fixed, will post cost later this week.
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      11-21-2022, 10:30 PM   #3
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It wouldn't make sense that all 6 injectors fail at the same time.

You're probably on the right path with the fuel pump.
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      11-22-2022, 06:10 AM   #4
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Okay, here's what happened leaking fuel injector on cylinder 3 caused my hpfp to fail and then failure in my lpfp.

Total cost
*Drumroll please*
5187$
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      11-22-2022, 01:53 PM   #5
Wolf 335
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Replace the injector first. You can do this yourself.

Then see if you have a fuel pump fault.

Did you run diagnsotics in inpa?
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      11-22-2022, 05:27 PM   #6
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Yeah I replaced the injectors and still got codes
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      11-23-2022, 07:24 AM   #7
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Quote:
Originally Posted by BlueWaterMetallic View Post
Yeah I replaced the injectors and still got codes
Do you have INPA to run some diagnostics on high and low fuel pump?
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      11-23-2022, 07:31 AM   #8
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Yeah I ran INPA
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      11-23-2022, 06:54 PM   #9
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Receipt

Here's the receipt from today
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      11-24-2022, 10:16 AM   #10
Wolf 335
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Quote:
Originally Posted by BlueWaterMetallic View Post
Here's the receipt from today
How is he getting the injectors for so cheap? Are the brand new index 12?

Also $550 to install 3 injectors is rediculous. It literally takes about 1 hour to install these.

Last edited by Wolf 335; 01-16-2023 at 01:17 PM..
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      11-24-2022, 10:18 AM   #11
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I can ask Friday, but that might be why labor is so expensive
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      11-24-2022, 10:27 AM   #12
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That's crazy... how does a leaking injector break your HPFP and LPFP.
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      11-24-2022, 10:34 AM   #13
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Quote:
Originally Posted by BlueWaterMetallic View Post
I can ask Friday, but that might be why labor is so expensive
What injectors did he put in your car?
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      11-24-2022, 10:40 AM   #14
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Here's when it started, so I was driving on a faulty pump for like two weeks. Probably, not good for anything fuel related in my car.

Probably need a better mechanic
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      11-24-2022, 10:41 AM   #15
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Quote:
Originally Posted by Wolf 335 View Post
Quote:
Originally Posted by BlueWaterMetallic View Post
I can ask Friday, but that might be why labor is so expensive
What injectors did he put in your car?
Unsure what injectors they put in
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      01-10-2023, 11:23 PM   #16
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Can you check? If they are 12s, I want to order some from that place. If they aren't 12s, I'd get a new mechanic asap
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      01-16-2023, 11:25 AM   #17
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They aren’t 12s but I have the n55 so I don’t think they make 12s for it. He put oem injectors on Bosch I think
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