Bigger Injectors

charliev68 · 03-19-2026, 06:01 PM

What will installing bigger injectors without changing any tuning do? Will the wide band sensor read too rich and slow the pulse rate of the injectors?

amrazM · 03-20-2026, 05:23 AM

you run the risk of washing down the cylinder and it will throw codes. the lambda sensors only have a set window of adjustment so depending on them to adjust for bigger injectors is not advisable.

03-19-2026, 06:01 PM	#1
charliev68 Second Lieutenant 370 Rep 366 Posts Drives: bmw m3 Join Date: Feb 2020 Location: CA iTrader: (1)	Bigger Injectors What will installing bigger injectors without changing any tuning do? Will the wide band sensor read too rich and slow the pulse rate of the injectors?
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03-20-2026, 05:23 AM	#2
amrazM mTekMods 2478 Rep 3,150 Posts Drives: like a granny. Join Date: Jan 2010 Location: Manhatan iTrader: (1)	you run the risk of washing down the cylinder and it will throw codes. the lambda sensors only have a set window of adjustment so depending on them to adjust for bigger injectors is not advisable. __________________ E90M3 - Satin Black F97 X3M - Brooklyn Grey E39 M5 - Silverstone
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