When people ask what that noise was tell them thats my VTEC POPPIN!

 

Mine does it too. AEM 1052U with RC 750 injectors. I think when you turn on the ignition it cycles through the ignition and injectors. I'm wondering if the injectors might be leaking a little residual fuel and it ignites the small bit of fuel.

 

mine does it here and there also.....not too sure whats the problem....but i found that if you hit the gas pedal before turning the key to the second position, it happens

 

it used to happen when i had my RC 1000cc injecters with my aem 1012. now with the id2000 and haltech it doesnt happen anymore. Wonder if its a peak and hold thing on the Aem Ems. Anyone have this problem with High Imp or Saturated injectors? (ie fic or id injectors)

 

I have high impedance injectors (FIC 1000s) and it still happens.

 

Mine may go a year or more then pop it does it some more. Intake back fire.

 

Mine has never done this. 1052 unit with RC 550s and now ID1000 injectors.

Interesting info here, wasn't aware of it.

 

my AEM 1052U and ID1000's did it every now and again, not sure what it was lol

 

Interesting stuff! I've got AEM v.1 and RC 475's. Sounds like it might have something to do with the ECU or injectors. Seems like it's more prominent with RC injectors too. I'm going ID1000's and a retune soon, will report back if that fixes it.

I'm really wondering if it's some kind of seal issue between fuel rail and injectors. Good to hear that a bunch of others have noticed this with no apparent issues though!

 

ive never had this , aem ems v2 FIC 2150cc/walbro 255/ bosche 044