deckster333

iTrader: (1)

"If its a real JDM motor it will never pass emissions"

Heres the scenario in my 92 Si hatch:

96 JDM b16a2 with about 50k on it

Round 1)
-car sound hi-flow cat
-ram air
-new O2 sensor
-everything else stock

ran it on the sniffer and it failed MISERABLY!
HC = 2x the limit
C02 = 6x limit
NOX = passed

searched honda tech and got a few answers, but nothing solid, talked to alot of people and read alot of threads on this site, tryed a colaboration of many things

Round 2)
-car sound cat hi-flow
-ram air
-new O2 sensor
+
-full tune -up.....ngk plugs, mallory wires, OEm cap
-ran one prior tank of gas on "Guaranteed To Pass"
-turned fuel pressure down from 35 psi to 20 psi
-ran 1/4 tank 91 and 10 ounces of Isopropyl Alcohol
-made sure car was warm so cat was working

results
HC = 3/4 the limit
C02 = 1/2 the limit!!
NOX = barely passed

the only downside to my setup was the increase in NOX, which is combustion temperature, probably from the alcohol.

Just thought I would post this to end any myths that JDM motors wont pass emissions. Rhode Island smog is very strict oh and if anyone wants the numbers I can post them. It can be done and I didnt have to pay anyone off to give me a tag!!!

project_mercy

Try running a real cat. My emissions are fine.

I haven't noticed anything inordinatly different with the JDM engine over the USDM engine. It's the same engine, sans having to T off the fuel presure regulator to provide vacuum to the Evap Purge Solenoid.

MassScene

thats sweet!!!!!!!!!!!!!! well both motors are 1.6 liters.... i would prolly have a hard time. b18 in my vx hatch (1.5) lol

revvin9k

Umm correct me if i'm wrong, is'nt a B16a2 a US motor? I thought B16a was JDM? Anyway, I passed too by just plugging up my stock ECU to my B18c( had a b16a2 stock) and passed but I have OBD2.

Donkey85

when people say b16a2 they usually are refering to the 2nd gen jdm b16 that has 170hp instead of 160

revvin9k

Oh he meant second gen b16a, just makin sure.

deckster333

iTrader: (1)

RI emissions are very strict...and i forgot to tell you IM running a JUN programmed ECU, the whole point of this post was that i left all my parts on and could still find a way to pass, everybody always flaming, this post hopefully helps someone...