HOOKSH

pedal feels a little softer when pressed, but at a normal idle of 750-800, if i press the brakes rapidly 5 or so times, the idle will go up to near 2k RPM. im guessing its a vacuum leak, but not sure where, any ideas anyone? i know the brake booster is good because it worked with my B18C1. motor is currently a B18B1 from a 96 LS, car is a 97 GSR. any weird things with an LS motor in a GSR that would cause brakes to raise revs? if not, what would be leaking, other than brake booster?

thanks for any help ya'll can provide.
-Matt

B2FiNiTY

iTrader: (2)

That is normal. Your booster is working

95 integra

iTrader: (2)

ecu increases rpms to compensate for the extra load on the engine.....does it on mine too, just not to 2k. If it idles fine then its probably not a vacuum leak, because if it was a leak it would raise the idle.

Racermech

Same here my 96 LS revs up. Asked a honda mechanic and they said 100% normal

aznballer

yeah it happens on my car and my friends mitsu, so i think its normal