i got a dualZC swap in my crx and need to smog it but need guarantees on how to pass...engine wise, not fuel additives...

 

good luck chuck...haha....dohc zc's wont pass smog...

 

I don't see why it won't pass. I live in cali and got mine to pass smog.All I did was installed a fresh cat. converter.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Humayrayakongkinaon &raquo;</TD></TR><TR><TD CLASS="quote">I don't see why it won't pass. I live in cali and got mine to pass smog.All I did was installed a fresh cat. converter. </TD></TR></TABLE>

x2, new cat on mine with PM6 and all stock, passed with ease. The real question is are you gonna pass visually? It's a tricky one, some say yes you can legally swap a DOHC ZC in an EF body, some say no. My local ref says yes you can as long as it's 88-89 model year only. Reason being is that he said he'd ref the motor as it's closest equivalent which is the D16A1 from a first gen Integra. The last year that motor was offered was 1989 so that being said, he would only consider the motor to be only an 89 at newest regardless of what year the motor really is. Going by the rule, same year or newer for any motor swap, an 89 would be the newest EF allowable to use a DOHC ZC legally. Talk to your local referee and make sure you get the full explanation.

 

very good point as far as being able to physically pass the emissions part, but not able to pass the visual/mechanical side...the few friends that i have in cali could never get a dohc zc to pass but they never really did say why...it was to my understanding that the zc produced higher hydrocarbons but i have the feeling i was misinformed...so i therefore retract my previous statement...i guess a zc could theoretically pass smog w/ a fresh cat and a pm6.... only reason im glad i live in michigan is cuz i dont have to worry about smog/emissions/safety equipment inspections

 

yea i should be able to buy/install and new cat this weekend so hopefully i will be able to update dis...

 

True

I ran mine 4 times with a PG7 and it could never pass the 15mph test cuz it ran too rich in the lower RPMs. The tech finally gave up and ran the test one gear lower (1st instead of 2nd) so that it would be higher in the RPM range and it barely passed. I located a PM6 and used it the next time around and it ran through the test with no problems what so ever (3rd time in 6 years, still no problems).

 

that must be the main factor in getting a zc to pass smog....the condition of the cat and which ecu your using...i know most zc guys dont stick with the pm6 very long if they've gotten a taste of a pg7/pm7...but if it works you should have the moderators sticky it or something so ppl will know how to get a zc to smog....

 

I was thinking that too. I'll look for all my old test results and scan them