Stupid question about changing injectors.. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

alex300 · 08-16-2015, 06:57 AM

If i change to 490cc injectors on my s14, do i need to get it tuned or will the ecu sort itself out?

thx for answers, im brand new to working on cars and mechanical stuff..

Frank_Jaeger · 08-16-2015, 03:49 PM

you need tune

Drifting Kalamari · 08-16-2015, 08:26 PM

ECU will not know it has different injectors, tune is required.

cotbu · 08-16-2015, 10:08 PM

The new injectors must be the same impedance as the originals, or you could blow the drivers or whatever. (For that scenario, parts and tune.)
You need a tune because the injectors are larger than stock, there's bandaid fixes for this, but... ah No!
If you don't want a tune, get the correct injector replacements!

Sent from a Highly Tuned Note 4.5!!!

alex300 · 08-16-2015, 10:46 PM

okay thanks guys, Ill think ill just go with stock injectors then, since i have a problem with one of the injectors i thought i might aswell change to bigger if i could

08-16-2015, 06:57 AM	#1
alex300 Join Date: Jun 2015 Location: Norway Age: 24 Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	Stupid question about changing injectors.. If i change to 490cc injectors on my s14, do i need to get it tuned or will the ecu sort itself out? thx for answers, im brand new to working on cars and mechanical stuff..

08-16-2015, 10:08 PM	#4
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 47 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	The new injectors must be the same impedance as the originals, or you could blow the drivers or whatever. (For that scenario, parts and tune.) You need a tune because the injectors are larger than stock, there's bandaid fixes for this, but... ah No! If you don't want a tune, get the correct injector replacements! Sent from a Highly Tuned Note 4.5!!! __________________ LoverTechnologies "Half Broken Things!"

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08-16-2015, 03:49 PM	#2
Frank_Jaeger Zilvia FREAK! Join Date: Jan 2012 Location: Port Charlotte, Florida Age: 29 Posts: 1,352 Trader Rating: (1) Feedback Score: 1 reviews	you need tune

08-16-2015, 08:26 PM	#3
Drifting Kalamari Zilvia Member Join Date: Jul 2012 Location: Woodstock Age: 38 Posts: 176 Trader Rating: (0) Feedback Score: 0 reviews	ECU will not know it has different injectors, tune is required.

08-16-2015, 10:46 PM	#5
alex300 Join Date: Jun 2015 Location: Norway Age: 24 Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	okay thanks guys, Ill think ill just go with stock injectors then, since i have a problem with one of the injectors i thought i might aswell change to bigger if i could