deanblue

Hi All,

I am new to this forum but not new to the prelude family. I am looking to get back to the prelude family and looking to purchase a clean prelude with a Type S jdm swap. My main concern is passing the emissions with the ODBI with the jdm ecu. I was wondering with the same swap had any success passing emissions? Thank you in advance.

mikksteel

There is no way to legally pass emissions with OBDI.

deanblue

I am in discussion with member Kadidle, it appears that he had figured out how to resolved the emissions issues.

mikksteel

Plenty of ways to resolve it, you just can't do it legally, or need to get it inspected by a state referee or something like that.

TypeT

how they gonna know what kind of ecu you have there if its tuned to pass the emission standards? do they rip your interior apart and take every ecu out?

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Honda Prelude 1997 2.2 VTI

Kronn 98SH

They plug into the OBDII diagnostic port. Only a USDM OBDII ECU will communicate.

__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold

deanblue

k guys, I brought my prelude to my mechanic today and they did their amazing work to get the car pass emissions with flying colors. They did not have to do all the conversions that is required to pass emissions. After their amazing work, they brought my car to an independent state emissions facility to get the car tested. I am still running with everything that came with the jdm type s motor. If anyone in CT and having this issue, contact me and I will put you in the right place.

minilogoguy18

If you're using the ECU for the Type S engine then it will be OBD2 >_>

Why are people so retarded as to think that there is no OBD2 in Japan?

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New Formula Red 93 BB2: JDM OBD1 H22a/T2W4 Accord Euro R transmission

Kronn 98SH

That doesn't change the fact that a JDM ECU cannot be read by American scanners. However, there are several kinds of emissions checks. You have visual tests (yep, he has a cat, he's ok), sniff tests (suck on the tail pipe), plug in tests (jack into plug). You can pass the first two, but you will always fail the third.

__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold

Nighthawk01

Most states will pass you if you have the choice to go to an independent station....sometimes not "legally" or Just because they don't care long as you pass the sniff test etc. The states like Cali that are strict are the ones that are near impossible.

lilredlude

states that plug into the ecu to do emissions can't read the type s ecu, obd2 or not. so that would fail if he were in a state that does the plug in test.

whenever i tried to get my car inspected they couldn't communicate with my car, so it was a fail.

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If you don't know what you want, you end up with a lot you don't.