bmw 335i n55 lean code

Tripaboveall · 08-25-2023, 10:15 AM

how's it going everyone. so I've been in this battle with my e90 n55 throwing a lean code every few days and could use some help. i replaced several parts such as maf sensor, map sensor, injectors, o2 sensor, and did a smoke test with no leaks. just looking to see if anyone had any ideas of what it could possibly be and or troubles you had in the same way.

thanks

M-technik-3 · 08-25-2023, 11:27 AM

Assume you checked fuel pressure before tossing injectors at it.

Tripaboveall · 08-26-2023, 12:37 PM

Quote:

Originally Posted by M-technik-3

Assume you checked fuel pressure before tossing injectors at it.

i had the shop check the fuel pressure which they said tis good I'm not too knowledgeable about what's a normal pressure.

08-25-2023, 10:15 AM	#1
Tripaboveall Registered 0 Rep 2 Posts Drives: bmw 335i n55 Join Date: Aug 2023 Location: hawaii iTrader: (0)	bmw 335i n55 lean code how's it going everyone. so I've been in this battle with my e90 n55 throwing a lean code every few days and could use some help. i replaced several parts such as maf sensor, map sensor, injectors, o2 sensor, and did a smoke test with no leaks. just looking to see if anyone had any ideas of what it could possibly be and or troubles you had in the same way. thanks
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08-25-2023, 11:27 AM	#2
M-technik-3 Major 2091 Rep 1,479 Posts Drives: E30 M3, E36 M3, 328iT, 335i Join Date: Mar 2020 Location: western Ma iTrader: (0) Garage List 1995 M3 [9.00] 2007 E91 [7.25] 1988 M3 [9.50]	Assume you checked fuel pressure before tossing injectors at it.
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