So i finally got a full gsr swap and i am going to put it in my crx.

Now i have (i think) all the smog equipment.
Gsr catalytic converter,
evap canister,
purge solenoid,
oem headers and intake manifold,
and I'll be using an aem cold air intake

Is there anything missing? The swap is 2000 obd-2 and came with a p72 ecu, but i know theres a PSP switch (power steering presure switch), and of course, i do not have power steering. Will this throw a code?

I have an ls in my crx right now but is there anything i should be worrying about?

oh yeah, I live in cali

 

Doesn't the 2000 gsrs have the immobilizer? And won't that pose a problem going into a crx?

I may not know what I'm talking about, though. Good luck!

 

Wow this one might be tough, depending on how bad the particular ref you visit is with pre-inspection prior to the actual test. I'll list my worries, and please I encourage you to let others chime in to help you reach a conclusion.

You have a 2000 gsr OBD2B motor with its matching ECU, engine wiring harness, Distributor, Injectors, ect, correct ??

One thing your car would need major changing is the implementation of the data link connector (DLC). It is the 11pin diagnostic port located on all OBD2 cars 96^.
The best way out would be to use the proper jumper harness and parts necesary for a clean OBD1 conversion still using the 2000 motor. Although you run into an issue being that when you present the paperwork for the motor, it will state it is a 2000 OBD2 compliant and is imperative that the proper ECU be used. Now if the ref is not a tough one, then I can see the chance of running jumper + OBD1 P72. This would be your best route. Converting to OBD2 is not out of the question, but it would suck.

If you have a stock OBD2 cat, dont let go of it, this alone helps greatly with blowing through smog. All evap conponments need to be present and in working order just like the USDM models. And must be USDM ECU. You need to find out who your local ref is, and ask around how strict he is.

 

Yes i do have matching everything, but after hearing about all these new problems is making me want to go obd1.

I most likely am going to go obd1 but is there anything else i would need?

I have my obd1 dizzy, cat, injectors, and resistor box but all from an ls. would that work?

Thanks for your input!

 

Not too sure about that.. But thanks for the support!

 

to convert it to OBD1 you would need the following, if I forgot something anybody please add.

OBD1 P72 ECU, with OBD0 to OBD1 jumper harness

OBD1 injectors from the LS are fine

OBD1 distributor from any DOHC VTEC variant, The LS unit would need its 3rd leg/mounting point hacked off, thus causing oil leakage most of the time, but it will work. hint.....dont do that

88-91 Civic Si engine wiring harness with out resistor box, may need to rewire for distributor, and injectors, which is not all that bad, need to add knock sensor also, and wire the IAB'S to the ECU, and wire in the VTEC spool valve assy. and oil pressure switch to the ECU also, there is writeups on this, and you will be using alot of your GSR harness to add these, so dont sell/trash it

Trans is another story

quality engine mount kit for B-series in a 88-91 civ

There is more I'm forgetting about but this is a definitive start.

 

I don't have OBD0 experience but it should be plug and plug with the correct parts. I would just use OBD0 VTEC wire harness and just wire in IAB, with dizzy and ecu jumper harnesses.

Hint: if you're not going to run IAB then just act like it's hooked up. Just make sure it's plugged. If you do, then pin it.

Better start looking for a OBD1 P72 ECU. I'll let you borrow mines if you're in Sac.

 

I have one I can sell also,

OBD0 doesnt have dohc vtec cars Lhd usdm, so there is no plug and play, you need si harness and manipulate.

Check out rywire.com also OP, its kindaaa pricey but not that bad.
wiring wise you can get a plug and play harness, jumper for the ecu, jumper for various distributors, ect.
quality $#!T also.

 

Would i really need to use a civic si wire harness? i already converted to mpfi and my car is obd-1 right now.

 

$#!T missed the, " I have an LS " part,
cool so your set up for b-series OBD1, so knock, IAB's, Vtec conponments, distributor plugs are already OBD1 grey clip?????
are the injector plugs grey clip?????? or are they all clear clip????
also you must already have a jumper harness and a P75 ECU correct???

 

Its best to use which ever engine harness that originally came with your car but as long as its nice and clean with no lazy cut and black taped wires, then you should be fine. (solder and heat shrink). When you said youre already converted to obd1. Meaning you rewire the ecu plugs as well? Not just the engine Harness correct? I've talked to a couple of refs, and they do not allow jumper harness. Some do, but the ones I talked to, didn't. As for motor, I would stick with obd1 gsr motor. Ive heard of people throwing on obd1 intake manifolds and such, and reffing it as obd1, even though it's an obd2 motor, but I'm 100 % certain on that. Remember to wire in the DLC connector, or else they will not pass you. Goodluck!

 

well, i dont haveknock, iab's, or vtec components because i have a 93 b18a1 thats obd1. Just an ls not a gsr lol.
but yes my injector plugs on my ls are obd1. so is my distributo. they are the clear clips. (injector plugs)
and yes i do have a ecu jumper harness from obd0 to obd1 with a p75 ecu.

 

the wire harness was an obd2 gsr on the motor right now.

I have a jumper harnes at the ecu but for the engine harness i converted it myself. What exactly is the DLC connector?

 

Do the Ref's check the year on the head?

 

Yes they check the year of your head and the ecu code. That's how they base your car/smog off. But you're good since it's newer than your car.

The sticker will say:
car/make/model
eng. yr/make/size

Can't run 92-93 GSR engine harness? OBD0?

Ok. So you're using the harness you have. Now, wire in VTEC/Pressure switch, IAB, KS. You might need OBD1 PCV system(almost certain).

Where are you from? As someone else stated about jumper harness, certain ref stations are more lenient than others. I would give them a call.

OBD0 cars have to wire in the DLC?

Keep us posted on your progress.

 

DLC "data link connector" From my understanding, obd1 cars needs it. It's just a 3 wire plug next to the service check connector that the refs use. Just like the service port for obd2 cars.

I would not recommend converting your car to obd2 from obd0. Unless you're really good at wiring, then youll have to add in the service port for the code reader thing.

If your motor is an obd0 then you don't have to wire in the DLC connector.

 

If that's true, then it's not possible to ref the motor if i convert it to obd1 right? Because the year on the head is 2000 but the obd1 p72 would be 94-95? or would it be fine because my car is originally obd0?

 

I'll definitely keep you guy posted. Thanks for all the input too

 

Why exactly do you say that? i mean i would only have to wire in a few sensors right? I would use an ecu jumper harness if thats what you're talking about?

 

Why the hell not?

 

Well the year on the head is 00 but the ecu would be 94-95. Cause i want to convert the motor to obd-1, but the motor is obd-2. So wouldn't the ref not pass me for that? or do they not care? Dont they match the year of the motor with the ecu?

 

Why not? Your engine/make/size will be 98 acura 1.8L. Call the refs dude. Best advice I can give you. Google search.

 

Yeah i need to call them. The only number i can find though is the number to make an appt. And i've tried asking for the number for a ref station nearest me, but the guy was being a douche. I'll keep searching. thanks for the input

 

800-622-7733 is this the number you've been calling?

http://www.bar.ca.gov/70_SiteWideInf...ContactUs.html

 

Yes