i was wondering if i have a 91 Da with a b18a1 and wana swap it with a b16 or a b18c1 i know ill have to switch obd's and its 1.8 and 1.6 will i have to get my car Reffed to pass smog since its not the same motor and i was also wondering if its the same thing with d series motors. thanks in advance

 

if the moter wasnt offerd in the car in california then you need to get it reffed

 

so if i was to drop in a b17 i wouldnt have to get it reffed?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99hatchboy &raquo;</TD></TR><TR><TD CLASS="quote">so if i was to drop in a b17 i wouldnt have to get it reffed?</TD></TR></TABLE>

If it's not the b18a1 engine you're replacing it with then YES you will have to bar it... unless you find someone to smog it for you for a price.

 

The main things that matter are:
motor is the year o the car or newer(matching OBD would be best)
-ALL smog equipment must be installed correctly and working(can use an aftermarket cat, but oem seems to burn cleaner)
-All wiring is OEM spec or better(IE: soldered and heatshrunk)
-US spec ECU for that motor


some additional things I'd reccomend:
-seafoam (just follow the directions)
-FULL tuneup(cap, rotor, plugs, wires)
-borrow an OEM cat
-fresh oil change
-run the car really hard for at least 30 min right before going for the test
-say a prayer

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