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      12-25-2013, 10:48 PM   #1
StormTrooper
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New Injectors Installed N54

Ok, so, I have pretty much every bolt on possible: AMS FMIC, BERK turbo back, AR DP's, AFE DCAI, Active BOV/charge pipe. Recently I purchased the COBB APV3 and ran the State 2+ stock throttle map. About 150 miles in I had a misfire in one or more cylinder and had been told my spark plugs had been fouled. Replaced all six. Ran fine until misfire again next morning. Was told my injectors were now bad and had all six replaced and told the shop to run my OEM map and take the access port off for the break in. No misfires 400 miles in but idles lean at 7600 RPM (6000 is normal).

My question is: if I decide to run my AccessPort again, how long will these new injectors last or could it had been that they went bad b/c of a combination of aftermarket parts prior to AP then with the install it just made sh*t hit the fan...
I want to run my COBB
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      12-25-2013, 10:57 PM   #2
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7600 RPM?
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      12-26-2013, 11:44 AM   #3
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I think you meant 760rpm vs. 600rpm. And I doubt that has much to do with the injectors. Probably just imagining it being different due to timing. Wait for the car to warm up.
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      12-26-2013, 12:02 PM   #4
e36addict
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There is no "break in" necessary for injectors.. But all older style N54/N63 injectors are shit. As long as you got them replaced with the new style index 11 or higher injectors and calibrated the new values to the DME, you should be set for a while.
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      12-26-2013, 12:14 PM   #5
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Did you have your new injectors coded to your car?
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      12-28-2013, 02:03 PM   #6
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This is where i got the injectors from:
http://www.ecstuning.com/BMW-E82-135....0l/ES2611291/

Yes, I meant around 700 to 800 rpm. I never put my car into gear until she warms up, but the weird thing is with the new injectors it WILL idle at 600 RPM all day, until after I start driving for about 5 minutes then the the idle stays steady at around 750 RPM when I come to my first stop and every stop there after. Don't know whats going on but its becoming a concern to me.
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      12-28-2013, 02:06 PM   #7
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Quote:
Originally Posted by e36addict View Post
There is no "break in" necessary for injectors.. But all older style N54/N63 injectors are shit. As long as you got them replaced with the new style index 11 or higher injectors and calibrated the new values to the DME, you should be set for a while.
"As long as you got them replaced with the new style index 11 or higher injectors and calibrated the new values to the DME"?
What do you mean by this...^
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      12-28-2013, 02:12 PM   #8
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Quote:
Originally Posted by Dackelone View Post
Did you have your new injectors coded to your car?
Don't know if its coded in or not, the place I got them installed deals strictly with our N54 platforms and don't think they would miss such a thing. I figured they were just injectors regardless being of a higher index and thought they would swap right in. Even thought about doing it myself :/
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