i just dropped a d16y8 in my 90 lx 4 door about a month ago and i went to get it smogged and it failed to pass, sorry but i dont have a scanner to post pic of sheet but ill try to type where it failed, please help since my temp. moving permit is about to expire and i have no idea of what could be wrong...


NO (PPM)
max gp meas
835 2054 3181 @ 15 mph = gross polluter
774 1854 2651 @ 25 mph = gross polluter

it also failed at timing it was at 12btdc instead of at 18
the shop said it was a heating related problem ( but the funny thing is that just 2 weeks ago i just dorve it up the south lake tahoe ca from s.f. ca with NO problems, it was a little more than a 4 hour drive just to get there

those were the only 2 things it failed at

i would greatly appreciate any kind of advice

thanks for ure advice and for your time

 

bump ( any info out there? )

 

anyone?

 

bump

 

Try correcting your timing. If it is over advanced it will cause emissions problems

 

the shop told me that even if i fixed the timing it wouldnt be enuf to fix the NOx reading...

 

haha.

SMOG is crazy in cali a Lot off things can cause nox. Ur cat might me dead ur timing might have to do something with it.. carbon build up vacuum leak do u have a EGR system..?

The old Honda motors produce a lot of NOX most off them don't pass especially the jdm motor produce hell nox

Good luck. You can try a few solutions like the alchol solution please search I think it helps for NOX
but ur HC might rocket up

 

hmmmm... so that might be the problem since the engine i just droped in it is a jdm but it has about 40.000 miles...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90civic_tio &raquo;</TD></TR><TR><TD CLASS="quote">hmmmm... so that might be the problem since the engine i just droped in it is a jdm but it has about 40.000 miles...</TD></TR></TABLE>

the mileage don't matter. the jdm engines are never desigined to pass any kind of emissions. I seen some jdm motors pass most off them have a hard time with nox

 

so what should i do?... the shop also tested my car as a 1.5 instead of as a 1.6.... would this make any difference in the results?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90civic_tio &raquo;</TD></TR><TR><TD CLASS="quote">so what should i do?... the shop also tested my car as a 1.5 instead of as a 1.6.... would this make any difference in the results?</TD></TR></TABLE>

well the 1.5 can pass with a higher score. if its newer it has to produce lower scores. if its older it can pollute more.