Update

<FONT SIZE="40">I PASSED!!! </FONT>

Well, I was going to do the emissions waiver because of the money that I spent on everything totaling over the required $450.00 and they told me I have to take it again on the spot that day (yesterday) and fail it before I can apply for it that day. So I switched my jdm R ecu for the usdm R ecu on the spot and thought I'd put the silencer in my spoon N1 exhaust just to see what happens. Mind you the ecu didn't have time to reset or anything, I just pluged it in at emissions, and drove it into the bay. They connected it up, and it goes to an "obd2 not ready" message, which I knew would happen and said, oh well, I failed, lets get the forms filled out now for the waiver. Then they let it sit there and idle for like 5 mins, and retryed, and yay, it passes. Definatly surprised me. So now I love my car again and drove off under 4K rpm's cause I'm still breaking my ACT clutch in

The only thing I did different from the first test is put the silencer in and did not drive around to let the ecu reset at all. So maybe it didn't have time to notice the fuel tank pressure/evap pressure is low (missing evap sensor may be the cause of that )

So thanks all

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(origional post)

Well, I'll keep it super short for the quick to the point people.

In the beginning, there was full jdm B18c - R swap in an EK.

Put in (for emissions), usdm R:

Oil pump, Second o2 sensor, crank gear, crank sensor, vtec pressure switch, ecu

Everythings hooked up, put the ecu on yesterday, drove 50 miles, seemed fine.

Started car today, cel once it cuts on. Its flashing a code 91. Crazy cause cel's only go to 70something. I'm like whatever, must have messed up, unpluged it, reset it, went away. Drove around seemed fine. Take obd2 test with usdm r cat, I FAIL. Reason, cell code saying the engine is running rich You would think that a jdm R engine witha usdm R ecu would run lean, but no, I'm rich. I'm so lost, don't know what to do next. Try a GSR ecu? Not sure. After the obd2 test, my cell light was on again flashing the same 91 code...

Now my humor

"I made my japanese engine learn to speak english, and what does it do... say 'I'm running rich!'"

ha ha ha


Modified by kay_animation at 6:11 AM 5/24/2005

 

After the ECU learns the fuel trim it should be resonably good at controlling mixture unless the primary O2 sensor is defective.

Try another primary O2 sensor.... possibly swap in your new secondary O2 in the primary place and see what happens.

Code 91 Evaporative Emission Control System insufficient purge flow, do you have all the evaporative emissions stuff hooked up.... charcoal canister and stuff?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kay_animation &raquo;</TD></TR><TR><TD CLASS="quote">
"I made my japanese engine learn to speak english, and what does it do... say 'I'm running rich!'"

</TD></TR></TABLE>

rofl cool

 

jdm itr intake manifold has no vap intake nipple I have to swap the usdm itr intake manifold for mine too?

 

91 Evaporative Emission Control System insufficient purge flow

you will need a usdm manifold, and the evap solenoid thats on he fire wall, hooks up to manifold vacuum,evap canister. and also the wirrins and plugs .

btw you could get away using your ek's solenoid. do you have ahigh flow cat or high flow exhaust???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by esponet &raquo;</TD></TR><TR><TD CLASS="quote">91 Evaporative Emission Control System insufficient purge flow

you will need a usdm manifold, and the evap solenoid thats on he fire wall, hooks up to manifold vacuum,evap canister. and also the wirrins and plugs .

btw you could get away using your ek's solenoid. do you have ahigh flow cat or high flow exhaust???
</TD></TR></TABLE>

By solenoid, you mean vtec? If so, its a usdm itr vtec solenoid/pressure switch.

Cat is a carsound cat. But its the plug in test, so I didn't think I had to worry about my exhaust setup too much as long as both o2 sensors are installed and cat is working right.

 

evap purge control solenoid.

if your exhaust flows to quick, (less back preasure) exhaust gas might have not enough time to be cleaned up by the cat. in my experiense by restricting the flow a bit, i have gotten better results in the tail pipe. ( as far as emission test)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kay_animation &raquo;</TD></TR><TR><TD CLASS="quote">
"I made my japanese engine learn to speak english, and what does it do... say 'I'm running rich!'"
</TD></TR></TABLE>

LMAO... very funny..

didnt kno emmissions was such a biotch.. glad we got none of that emmission none sense here in good ole florida.. ahh yeahh..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by esponet &raquo;</TD></TR><TR><TD CLASS="quote">evap purge control solenoid.

if your exhaust flows to quick, (less back preasure) exhaust gas might have not enough time to be cleaned up by the cat. in my experiense by restricting the flow a bit, i have gotten better results in the tail pipe. ( as far as emission test) </TD></TR></TABLE>

Thanks. I just think I found out what I'm missing:


This post helped soooo much...
https://honda-tech.com/zerothread?id=906684

So I guess I'll get that sol. added

try to figure out how to hook it up without going to a usdm intake manifold because emissions dosn't look under the hood

GSR ecu maybe

and then I'll put the silencer in my spoon to restrict back pressure a little bid.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stumpyf4 &raquo;</TD></TR><TR><TD CLASS="quote">After the ECU learns the fuel trim it should be resonably good at controlling mixture unless the primary O2 sensor is defective.

Try another primary O2 sensor.... possibly swap in your new secondary O2 in the primary place and see what happens.

Code 91 Evaporative Emission Control System insufficient purge flow, do you have all the evaporative emissions stuff hooked up.... charcoal canister and stuff? </TD></TR></TABLE>

Actually, I'm confused now. I looked up the code online and its saying:

Code 91 :: Fuel Tank Pressure Sensor low input

not the evap control system (though it is missing in my car, I just have the canister)

So my question is, is this because the evap sol. is missing or another problem?

My second question????

I read that the my jdm itr IM (left in the picture) dosn't have the evap. sol. input like the usdm itr (right). I read that the bottom left input on my IM is for cruise control, but its just a little smaller. My question is, is it ok to hook my evap. output up to the cruise control input? Its all goes to the same area in the IM right?

 

The FTP is part of the EVAP system, it is used to monitor the system for leaks. The EVAP system is tricky, everything has to be hooked up correctly and working or you will get a CEL.

 

i have seen people T it to the brake booster vacuum. but retain from acura on the manifold is not much, you could sell your "jdm" manifold and probably end up even or close to even.

 

https://honda-tech.com/zerothread?id=767817

Try this. It works, I did it to mine. I had to buy 3 potentiometers because I fried two of them, while I was hooking them up. The 96-98 hatches do not have a fuel tank pressure sensor. The 99-00 do. This is probably why you are getting the code. Follow the example in John Conner's response

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97mini-me &raquo;</TD></TR><TR><TD CLASS="quote">https://honda-tech.com/zerothread?id=767817

Try this. It works, I did it to mine. I had to buy 3 potentiometers because I fried two of them, while I was hooking them up. The 96-98 hatches do not have a fuel tank pressure sensor. The 99-00 do. This is probably why you are getting the code. Follow the example in John Conner's response</TD></TR></TABLE>

Thats not the problem because Everything on my car is obd2a. The wire harness, all the parts I put on the engine. The itr is a 1997 engine. My hatch is a 1996. Its all obd2a, ecu and all. Ecu is from a 1997 usdm itr. So I'm guessing its because I don't have a evap solenoid on my car at all right now, just the canister with the output un hooked up.

 

Hey you jacked my pics hah.

I created that thread, and I recently past my emissions test. I still get a code 45(too lean or too rich), but I think its because of the nature of the jdm itr motor, its got higher compression (11.1:1), and is designed to run a little richer regardless of using usdm ecu and all the required usdm parts. Just rest the ecu and drive like 20-30 miles and then bring your car to the emissions station.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2kgs-R &raquo;</TD></TR><TR><TD CLASS="quote">Hey you jacked my pics hah.

I created that thread, and I recently past my emissions test. I still get a code 45(too lean or too rich), but I think its because of the nature of the jdm itr motor, its got higher compression (11.1:1), and is designed to run a little richer regardless of using usdm ecu and all the required usdm parts. Just rest the ecu and drive like 20-30 miles and then bring your car to the emissions station. </TD></TR></TABLE>

Thanks a lot, I wasn't trying to jacked your pics. That post helped me out soo much since I first got my car. I gave a link to it

But thats what I did, I reset the ecu, drove about 20 mins straight, then went straight to emissions. There was no cell when I got out the car for emissions, but it was a cell when I got my car back afterwards, so I'm not sure if there computer brings it out faster or what.

And keeping in mind about the 11:1 compression, I knew that and thought that if anything a usdm itr ecu will run super lean because the fuel map is lower, but instead I start runing rich

Its like all logic broke and I'm like oh, ok, gsr ecu maybe, or hell, maybe a d16y8 sohc vtec ecu on a jdm r will bring the fuel down a bit

But I'll try again next emissions year. For now, I'll claim the $900.00 I put on this dream and get the waiver...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kay_animation &raquo;</TD></TR><TR><TD CLASS="quote">Thanks a lot, I wasn't trying to jacked your pics. That post helped me out soo much since I first got my car. I gave a link to it
(</TD></TR></TABLE>
hah I was just playin man I'm glad that post helped.

[QUOTE=kay_animation]Its like all logic broke and I'm like oh, ok, gsr ecu maybe, or hell, maybe a d16y8 sohc vtec ecu on a jdm r will bring the fuel down a bit ([QUOTE]
I thought the same thing, but I don't think its possible to pass the test with a different ecu.

I'm positive that you'll pass the emissions test if you have everything posted in my thread. I don't think theres any way around running a jdm im(intake manifold), you'll have to use the usdm im.

 

So how is this not contributing to your problem? The integras do have this sensor. Your car does not. Your ecu is looking for something that isn't there. I've got a 97 jdm itr engine and a 97 hatch. Your car is running a USDM ecu, which has this sensor. If you get the canister and sensor installed, I say it is almost a certainty that you will still have this code. Any one back me up or prove me wrong? I am curious now, it's been a while.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97mini-me &raquo;</TD></TR><TR><TD CLASS="quote">So how is this not contributing to your problem? The integras do have this sensor. Your car does not. Your ecu is looking for something that isn't there. I've got a 97 jdm itr engine and a 97 hatch. Your car is running a USDM ecu, which has this sensor. If you get the canister and sensor installed, I say it is almost a certainty that you will still have this code. Any one back me up or prove me wrong? I am curious now, it's been a while.</TD></TR></TABLE>

Because the problem you fixed is converting to an obd2b car. You have that extra sensor that obd2a car's don't have. So this would help if I was running an obd2b ecu/engine on a obd2a car, but my car is a 1996=obd2a + a 1997 itr engine=obd2a, so why would I have to do 1999+ obd2b fixes for a sensor thats not on obd2a cars?

I'm not saying your fix dosn't work, I'm saying it does me no good.

Its like having an obd0 car and trying to convert to obd1 and you tell me to add a second o2 sensor. While this works for obd2 cars, its not what I need for my conversion.

I'm saying the code is probably from not having an evap. sol. which I was not aware was missing. Its on obd2a cars and not on mine so its probably why I'm getting the code. Its hard to have evap pressure when the canister is not hooked up to anything, hence the cel light I guess. So its like having a venting hole on my fuel tank, so of course I would get a low pressure code for it.

I just wasn't aware that you could get a cel for that. But I'll fix it this weekend and see what happens. I'll let you know either way. If I'm wrong, its not the first time or I wouldn't be here asking for help in the first place

 

You are going to need every sensor your ECU is looking for.....

Every ODB2 car has the purge solenoid valve, but not all OBD2a cars have the gas tank pressure sensor, but all OBD2b car have this sensor. Unless your car is a '97 HX or EX, you need to do the fix 97mini-me suggested or replace you gas tank with an EX one. You also need to install the purge valve. Good luck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97mini-me &raquo;</TD></TR><TR><TD CLASS="quote"> If you get the canister and sensor installed, I say it is almost a certainty that you will still have this code. Any one back me up or prove me wrong? I am curious now, it's been a while.</TD></TR></TABLE>

did a swap jdm itr (converted to usdm obdII) and i did not swap or touch the gas tank. just added all the sensors under the hood. no cel. car went through CA bar fine. 2000 civic DX hatch. i used a 2000 si ecu inside a 2000itr ecu housing (ca bar checks part # on ecu) did it this way to get around imobilizer on itrs

ohh and once it pass testing we went back to jdm ecu. but we did drive around on the obdII ecu for a month and it was fine.


btw, if all they do is tail pipe and they don't check ecu and don't do under hood instpection. why not just run a obd I ecu with a jumper???

 

I did a 96 ITR swap in my Sol and all I did was plug in my b16a2 ECU in and I passed, did'nt have the EVAP solenoid either. My Sol is a 96 obd IIa

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by esponet &raquo;</TD></TR><TR><TD CLASS="quote">

did a swap jdm itr (converted to usdm obdII) and i did not swap or touch the gas tank. just added all the sensors under the hood. no cel. car went through CA bar fine. 2000 civic DX hatch. i used a 2000 si ecu inside a 2000itr ecu housing (ca bar checks part # on ecu) did it this way to get around imobilizer on itrs

ohh and once it pass testing we went back to jdm ecu. but we did drive around on the obdII ecu for a month and it was fine.


btw, if all they do is tail pipe and they don't check ecu and don't do under hood instpection. why not just run a obd I ecu with a jumper??? </TD></TR></TABLE>

No 96-98 hatch had the gas tank pressure sensor. All 99-00 hatches had the gas tank pressure switch, since the 99-00 hatches are OBD2b as I stated ealier.

In PA, inspection requires them to hook into your cars ECU to make sure everything is working properly. The computers they hook into your ECU won't even read OBD1 ECUs, so you fail.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by esponet &raquo;</TD></TR><TR><TD CLASS="quote">did a swap jdm itr (converted to usdm obdII) and i did not swap or touch the gas tank. just added all the sensors under the hood. no cel. car went through CA bar fine. 2000 civic DX hatch. i used a 2000 si ecu inside a 2000itr ecu housing (ca bar checks part # on ecu) did it this way to get around imobilizer on itrs
</TD></TR></TABLE>

I stated that the 99-00 civics have this sensor. It is the obd2a (96-98) CIVIC HATCH (among a few other models) that do NOT have this sensor. Your car has it from the factory. Why the 96-98 hatches don't, I have no idea, but they don't. As for the 97 ITR, well, it DID have this sensor. For some reason, certain models of CIVICS did not have this sensor. However, now that your car thinks it is an Integra, it's going to be looking for it.

Anyway, good luck fixing it.

 

actually i did a swap on a 96 dx hatch (LS swap) and i used obdII ls ecu with no problem. never had to mess with fuel tank.
jdm R into a 97 dx coupe, same difference.

this is the first time of me hearing peole having to mess with the tank or trying to fool the ecu. been lucky i guess, but after about 10+swaps i guess i really lucky