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Originally Posted by Civic_D16Y5
... i wonderwhat kind of "illegal engine" he has? i dont thing b18c1 or b18c5 is illegal... well maybe its just illegal in general to have a defferant engine in your car.
maybe he has an h22a?
maybe has actually done some "trick" motor job and put in a bigger enigne like a v6 or something that would require hella work
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An engine swap could be be considered illegel if
A)the year the motor you are swapping in was produced is older than your car chassis. I.E. A 1991 B16A is illegel to put in a 1997 Civic. This has to do with emissions mostly. In cali, they still might trip if they found you put a 1993 OBBI B18A1 into your 1995 Civic hatch, since it's still llegel. In most states though, espeically ones that don't follow cali's lead, you'll be fine as long as the motor is the same emissions standard or higher. So for example, any OBDI motor or OBDII motor into a 92+ civic, etc.
Now, as I said, the TECHNICALLY the law states the motor must be from the a vehicle of the same chassis year as yours or newer.
B)It is considered illegel if you remove any of the emissions control equipment. For example. You have an ONBII 1997 B18C1 in 94 Civic. You convert it to OBDI and run it through a 1995 OBDI ecu. All this is fine and legel, as long as you leave the OBDII emissons equipment intact. Even if you don't use it, becuase your vehcile is OBDI, you must leave them intact and on the motor. This is why you my see a swapped motor in a car like this the wires from an OBDII sensor running to nowhere. Becuase they have to leave it intact. Now most states, again, won't trip if they are not, as long as you pass the emissions test. In cali, hpwever, you will automatically fail the visual inspection if you don't have these intact, even if they are not in use.
Now, an H22 swap is legel into your civic, as long as it's from a vehicle that is the same year or newer as your vehicle chassis, and as long as all the emissions sensors and equipmwnt stay intact (as I descibed in B). Also, I am not sure if a JDM motor is legel in cali or not, so a JDM motor may be considered illegel in cali. Again, in most states, like oregon or washington for example (where you don't have a visual inspection and only have to pass the emissions test), as long as all the emissions epuipment is intact and as long as it's from the same emissions type or newer vehcile (OBDI, OBDII, etc) your're usually going to be ok. In cali, I am not sure if it's illegel or not, you'd have to look into that yourself. I think I have read before that it is illegel, but I am not sure.