mtownek9

1. my short ram intake started making a noise that sounds like someone trying to throw up.
2. my car bogs when I try to accelerate quickly. Also had a flashing check engine light come on. it flashes 3 time very quickly and stays off for awhile then comes back on.
3. fuel pressure is around 42 psi at idle but if i blip the throttle it goes up to 64 or so, if i slowly press the throttle it stays at 42.

All of these things just started today. I can't go to autozone to get my CEL code checked yet because my battery has also died, I had to jump it to get it to start this morning, then just a half hour ago to come home from school, and now it isn't responding to jumping.

The car is a 2000 civic si. the only mods are intake, exhaust, and flywheel. I don't know if weather has anything to do with the problems, but it snowed yesterday, temps were in the single digits. it is 17 degrees right now and the wind chill this morning was -5.

hall97civic

get a new battery, then check your alternator. Your problem could just be do to your bad battery.

B16B_coupe

sounds like a misfire, jump your ecu and find out what dtc is stored.

btw you can push start your car, unless that battery is completly dead

mtownek9

I know I need a new battery. But would the battery also cause the intake noise and the fuel pressure fluctuation, because that seems unlikely.

B16B_coupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mtownek9 &raquo;</TD></TR><TR><TD CLASS="quote">I know I need a new battery. But would the battery also cause the intake noise and the fuel pressure fluctuation, because that seems unlikely.</TD></TR></TABLE>

NO

B16B_coupe

btw all you need is a paper clip to jump your ecu to find the DTC stored

mtownek9

ok, good, because it seemed like the other guy was telling me that my battery was causing all of that.

mtownek9

ok i will go try jumping the ecu.

B16B_coupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mtownek9 &raquo;</TD></TR><TR><TD CLASS="quote">ok, good, because it seemed like the other guy was telling me that my battery was causing all of that.</TD></TR></TABLE>

dont listen to him, here https://honda-tech.com/zerothread/1901557

mtownek9

I tried jumping the ecu, the CEL didn't flash at all. There is also some kind of red box attached to the ecu any idea what that could be?

B16B_coupe

did you turn the key on? and when the cel comes on it just blinks? thats normally random misfire's. when the last time u done a tune up?

mtownek9

yeah, I turned the key to were everything is on but the engine, waited two minutes and nothing happened, then I turned the engine on and nothing happened. I don't know the last time it had a tune up, I bought the car in july, and within a week after I bought it I had performance honda in fairfield do a inspection of it, the kind of inspect that is almost $200 then they replaced the rear brakes, and replaced the primary 02 sensor.

mtownek9

also does the stock fpr on a b16a2 look like chrome?

mtownek9

got a new battery, and spark plugs and the car seems to be running pretty normal. I pulled the CEL code and it was either 4 or 5. I think I might have missed a flash, if not then it was 4.