clickergod

its not boosted so dont ask
1992 honda civic with d15b SOHC
i have a stock p 28 ecu running the engine

when you give the car gas and let it idle down or even tap the gas it pops out the exhaust WTF!!! i cant figure it out

all my cencors are working "no error codes"

any ideas cuss im out of them

and theres a tapping sound coming from the head when you give it gas

jake2001z001

valves anyone, have u tried to adjust them

Ravage70

well first off ur running a p28 on a d15 nonvtec

bobski

D15B = D15 with a Z6 head... look it up :P

Ravage70

umm look at my sig genius

and he never said z6 head u noob ---- ********

Sinner

jdm d15b's come with vtec heads.... I got one, its pretty peppy for a 1.5l.

quadnie

pops out the exhaust.. as in backfires?

Tapping, as in pistons hitting valves or pinging?

I'm going to go for the longshot into left field and say the time has jumped a tooth.

Let's see if I'm right

Semnos

check valve clearance....maybe getting to much fuel in their to...to rich maybe...i've run a 1.5 with a ZC PM7 ecu before...never got any popping sounds...check valve clearance and your timing.
I had a D15B on my EG civic it wasn't vtec though it was a D15b2 DPFI...

clickergod

sorry its taken me so long to reply work sucks

the valves are not out of adjustment the timing is in check done it by ear and by a timing light as far as running rich i blew 35$ and bought an adjustable fuel pressure regulator and messed with the fuel pressure its not it either... i dont know mabey the engine is just ----...

and for the one not understanding the JDM d15b its a Single over head cam VTEC that if tuned correctly can run with the DOHC's

if it helps i have the true ZC d15B meaning it has 3 stage VTEC ""2 vtec silinoid things on the head""

Guy-Fast

ignition timing, spark plugs, cap, rotor. Basic tune up in order. Sould fix the problem. Check engine lights cant do all it for you.