Will my civic pass emission testing if i do a motor swap look for more info?

Question

i have a 1993 civic ex it has a 1.6L motor and i am looking to do a motor swap and wanted to know if my car will pass emission testing because the motor i want to put in is a prelude motor a 2.2L the h22 motor.... does anybody know if it will pass emission testing i

Answer 1

As long as the motor is in good condition it should pass smog through the tail pipe no problem. However there is a catch, it might not pass the visual inspection, a current problem with my miata. If you follow two simple rules you should be fine visually. Rule on is that the motor is not older than your car itself. i don't know what year prelude your donor motor comes from but as long as it is newer than a 93 you'll be fine. Second rule is that you should have all of the stock equipment on the donor car when it gets smogged. I have stuffed many different engines into many different cars, so i know that it isn't always easy to do, mainly because of space restrictions. For the most part you should be okay, i have been told (Seeing that i never keep any single car long enough to need smog) that most places bypass the visual anyway, but like i said i have only been told this.

Answer 2

Squirrel gives you the best answer, but there is a bit more to it in California.
Not only must the engine be the same or newer, it also must use the transmission for the replacement engine. If the transmission for your Civic and Prelude are the same, you're in good shape.
Your computer I assume will come with the engine; if not you might want to go to the wrecking yard to get one. They perform differently.
And finally, the visual may fail by virtue of a conversion no matter how well done it is.
In California, we DON'T skip the visual (at least not and keep our licenses).
A very good thing to do is call your regulatory agency (in California it's Bureau of Automotive Repair) and ask the referee what HE wants to see. Once the conversion is made, he will test it and then affix an official State of California label to the vehicle that all smog techs look for when we see a conversion.
This would be a smart move and might save you a great deal of money, time and inconvenience.
It would be a bummer to do all that work, then be told you can't license it because you didn't do something the state requires.
Good Luck

Answer 3

The wiring for the new motor may be different than it was for your old motor. This may cause some problems with sensors not hooking up correctly and may set a check engine code. The computer may also have problems reading the information from the sensors in the new motor and can cause codes to show.

Answer 4

If the Prelude passes emissions with the h22 I don't know why it wouldn't if it was just in a different car. Search on http://www.honda-tech.com
I'm sure you can find what you're looking for.

Answer 5

dude...instead of the prelude use the Acura Integra GSR engine, more hp...less weight, it will pass emissions too

Answer 6

It should if you can reconnect your emmision controls back up to that engine.

Answer 7

good for you