noisy injectors since aftermnarket ecu installation

[BeRad]

Well if everything is setup right, you clearly haven't a loud enough exhaust.

very true haha. no muff to tuff


theres no hearing anything in mine, hard enough to hear the stereo 3.5inch of exhaust drowning everything.

[Disturbed1]

1 less muffler and i may aswel dump exhaust behind front wheel like ill be doing in my drag car

[30psi 4agte]

FWIW My injectors have always been overly loud too. When i had the 550cc in the were quite loud now with the bigger injectors its even worse.

This is a guage of just how loud the new ones are. When i put them in i had to play around a bit with the fuel trim to get it started. the new injectors were so much bigger that the eng was getting flooded easily on crank and it took a few goes to trim up the map so that the thing would actually start.
Anyhow. when i first cranked it over i could here what sounded like a cracking noise sort of like when i lead is off and the spark is arcing out. so i stopped cranking and checked the eng to see if a lead was off. I checked everything and could nt find any thing amiss.
I then went back in the car started cranking and there was that noise again !!! I was like WTF is that. ........... It turned out that it is the F$$KN injectors opening and closing ,They are that loud that it sounds like a lead is off !!



I am now thinking ...seeing im not the only one with this noise that it must be the way that The EMS ecu is configured to drive its injectors.
I wouldnt be too concerned about it as i have always had it and have never had any probs with anything. IE injector life / injectors over heating /ecu faults etc etc.

[Whiplash]

how u gonna tell if 1s not running and the other 5 are ticking away like crazy shannon???

easier to pick a dropped cylinder dont ya think

thats why i said if ya get good enough!

[Adsport]

the ecu is possibly pulling them open harder with more amperage making the sound louder

[ViPeR_NiPPleX]

Sounds logical. With the resistor pack the injectors would be taking longer to open, which equals slower, which in turn equals quieter.