Alrighty,

Swapping the motor isn't a big deal, however I want the car to be 100% after the swap. Want to be able to pass smog without any issues.

Car in question is a 2000 Integra LS automatic. I'm planning on keeping the auto and LS ecu and using the stock LS wiring harness.

Question-
What b20 generation of motor do I need to make everything match up to pass smog without any issues?

I've been told the B20z high compression would be my best bet. Is this correct and how do I make sure I'm getting the correct generation of b20?

Thanks HT.

 

as long as it is a usdm b20 you should be fine.

 

of what year?

What if it is a JDM b20?

 

Follow up question.

If I go with a stock LS auto from 96-00. Will a JDM auto have anything different than a USDM auto, motor only?

Wondering if it will have the EGR system or if I need to swap that over, or what all would be needed.

Thanks guys.

 

B20s can't pass smog in Cali. I'm not sure about other states though

 

I'm in Texas. So basically it just needs to not make the CEL come on. As long as the CEL isn't on I'm pretty confident it'll pass. Just need to know what would be different between the JDM motors vs the USDM motors as far as those items go.


What I've narrowed it down to is if the motor is OBD2, and has a crank sensor and knock sensor I should be good to go. At least from what I've been reading.

 

mines did

 

That's crazy. But I'm guessing it was at a normal smog shop? I was mainly stating for the ref it wouldn't pass.

 

If it is a usdm b20z it should be fine, also make sure it is the same year as the car you will be putting it in (2000) everything will be plug and play



and in cali as long as you do the complete change over (usdm engine), meaning same year car/engine, ecu intake, exhaust. You should be able to ref it no problem.

 

what's the difference between USDM & JDM on the B20, and the LS in OBD2.

 

You had an incompetent smog tech or an illegal smog.
Wrong. A B20 is considered a truck engine and is not smog legal in CA.

 

This is true ^^^^^^

 

not really answering my questions guys.

In CA they would consider it an illegal swap do to the fact that it didn't come from a "like model." I get that, but I'm not in CA so that doesn't apply.

I'm looking for differences in the engines themselves betwee USDM and JDM motors. Not power output or internals. Stuff that would need to be changed, or added to make it pass smog in TX (basically no CEL).

 

Perhaps the title should have mentioned Texas,other wise,yes you will get answers that are of no use to you...

 

yeah just a normal smog shop, he just looked to see if all my sensors were hooked up and i put a new cat on pass with flying colors

 

[QUOTE=DCFIVER;46753224]You had an incompetent smog tech or an illegal smog.

didn't pay the guy illegally so it was Incompetence

 

Meh, some of us earn our license through a year of training. Others buy their license and go through about 6 weeks of training.

 

Well I'm going to just replace the original LS motor with another LS motor. I don't see any positives worth worrying about it passing or not.