does anyone know how to correct it? i've heard that it could be back fire in the intake manifold and the engine is too advanced during idle, so i retarded it...but it's still there.

the popping noise is more prominent when naturally aspirated or turbo charged....but less noticable when supercharged....so i think it might be something to do with the intake manifold side???

any thoughts?

 

bump

 

im supercharged and i didnt hear any popping noises from my intake when i was NA or right now either. how loud is it? do u hafta put ur ear on the intake manifold?

 

with the supercharger, you would have to put your ear to the filter to hear it

but with the turbo or N/A, you can just stand next to the car with the hood down, and you'll hear it

 

do a compression test or cylinder leakage test....

 

hmmm......i'm not totally ruling out that something might be wrong with my engine.....but i know 3 other people with the same problem, and one of them has a rebuilt engine

any other ideas?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cowboy &raquo;</TD></TR><TR><TD CLASS="quote">hmmm......i'm not totally ruling out that something might be wrong with my engine.....but i know 3 other people with the same problem, and one of them has a rebuilt engine

any other ideas?</TD></TR></TABLE>

its the ECU, so it is somehow related to fuel and/or timing control from the ECU.

 

yep , as the previous poster stated , I definitively diagnose you problem over the internet, it is without exception the ecu....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bonestockls &raquo;</TD></TR><TR><TD CLASS="quote">yep , as the previous poster stated , I definitively diagnose you problem over the internet, it is without exception the ecu.... </TD></TR></TABLE>

I am one of those 3 people he was refering to. All of us had the same aftermarket standalone ECU. The original poster failed to mention that point of his setup.

 

this is why I say its the ECU, same thing going on as you. Standalone ECU that I'm presuming its untuned properly.

https://honda-tech.com/zerothread?id=775753

and just for reference https://honda-tech.com/zerothread?id=820869

 

right on, extra information is always good

 

Hi, was wondering if the original poster solved the problem.
I have the EXACT same problem.
Im runnign a fully rebuilt, recon b20vtec.
Im running powerfc.
It popped from day 1, only on idle, 10-30 seconds apart.
It makes good power, but its annoying the hell outta me.
I changed Cam gears, changed cam timing, ignition timing, a/f ratio, injectors, throttle body. I opened up the intake manifold and there was NO CARBON build up on valves.
Im on the verge of selling the car away noW!!!

Could it be the powerfc?

 

Bump