Hi,
It's California SMOG time And I have the following issue: my EVAP Monitor is stuck in incomplete status. I'm aware that this particular monitor needs certain conditions to enter ready status, and I think I've done them. I've cruised around for about 50 miles waiting for the monitor to come to life...

I tried a different purge valve today, but it wasn't throwing any codes before or after, and the new valve had no affect.

The Car:
1999 EX Civic with a 1999 JDM B18C-R swap
I'm using a P73 OBD2B USDM 2001 ITR ECU
And yes the motor was OBD2A, and it's converted OBD2B.

The EVAP system was not changed, it's a 1999 EX Civic EVAP system connected to a JDM ITR motor. Is that the issue? Does anyone have experience with this? My vacuum diagrams indicate that it is connected correctly.



I reckon I have a two options:
1) See how bad Acura wants to rape me for testing out my ECU
2) Try and find someone local willing to let me try out their P73 OBD2B ECU (w/bypassed immobilizer)

It's pretty strait forward. Arrows indicate direction of vacuum/suction into IM.
Here's the setup:

 

Just driving wont set a evap monitor... you need to go to honda and find out what steps you need to do to get the evap system to turn to ready... Sometimes if the temp sensor isnt preforming correctly it wont let the evap system run.

 

What component of the EVAP system is not ready?

 

Nice catch on the temp sensor. I accidentally smashed the connector housing on the stock thermostat housing temp sensor when installing the motor, and I replaced it with one I pulled from a junk yard. The ECU is saying the coolant temp is 198F - 205F so I think the sensor is sending a good signal, and the Thermostat was fully open.

RonJ,
My OBD2 reader has a line which basically looks like this:
"EVAP Monitor - inc" so I am not sure which monitor it is referring to. All other monitors are in OK status.

Thanks for your help guys

 

I am new to this forum. Nevertheless I've been searching for ways to set my EVAP System to ready for my California emission test. The hardest part was getting the evap system ready. I failed the inspection twice because first my EGR was clogged and then because my OBDII was not ready for testing. My father and I cleaned out the EGR and the passage drilling into a port and removing the ports. After done we plug the ports back from part you need to get at the dealer.
I've having been driving around for a month and a half to get the evap monitor to ready. No luck tried everything.
So today I tried it again and this is what I did

1. I had 3/4 of gas in my tank. Unleaded fuel.
2. Since I'm expecting a girl on the way I was parked at the hospital for over 12 hours at a parking structure.
3. I plugged my OBDII reader and view the data. Checking for temp.
Coolant was below 90 degree. (50 degrees)
Map was below 46.6
4. I started the car, turned on the headlights and fog lights, turned on the ac with the front and rear defroster on for 5 minute or more.
5. Turned off the ac left the light on and went on the freeway which was 5 minutes away on stop and go traffic.
6. I drove it normally for about five minutes on the freeway at 65 plus mile per hour and exited. Drove to Louis burger to get something to eat then go back to the hospital.
As I was ordering my food and pull the the drive Through to pay I glance over the obdII reader. With excitement it finally said all monitors are all ready. ( had my OBDII scanner on drive cycle )
7. I'm was like he'll yeah. Because I was going to take this to a shop that was going to charge 90 to set it to ready. I didn't care because I was getting pretty **** off.
8. Now all I have to do it give it a little more drive on the freeway and take it straight to the star certified smog station.

Hope this helps anyone that had the same problem I did for the last 2 months

I drive a 1997 honda prelude base model with Oem body kit

 

Wow someone responded to this. My problem still persists and I haven't bothered with it because I run a OBD1 computer daily, but this December is smog inspection time

So to paraphrase:
How to get the Honda EVAP monitor to register with OBD2 ECUs:
1: Get wife pregnant with girl
2. Make sure you have gas
3. Park at a local hospital for 12 hours
4. Start the car and turn EVERYTHING on for 5 minutes
5. Turned off ac, leave lights on and proceed to a freeway with stop and go traffic
6. When safe, for five minutes drive at 65 plus mile per hour
7. Get fast food
8. Check OBD reader as you pull up to the window

I'm doing all of this before December

 

Because you have a 1999 model year vehicle (1996-2000), you can have one monitor in a "not ready" state and still pass emissions. Vehicles dated 2001 or newer can only have a single readiness monitor (specifically the EVAP monitor) in a "not ready" state.

 

You're not from California are you?

 

So nobody has failed because of Evap not ready? You're just being over prepared? I think this why the allow the Evap one thru, it's hard to simulate conditions necessary for purge test.

 

I had similiar EVAP concerns with a 96 Hatch and a b16A, I just grabbed an OBD2A P30 though since it does not look for EVAP.

 

I am in California. For most smog info, go to:

http://www.bar.ca.gov/

Here is a screen shot of the pdf below: http://imageshack.us/a/img845/2780/r...ssmonitors.png

http://imageshack.us/a/img845/2780/r...ssmonitors.png

From here:
http://www.bar.ca.gov/80_BARResource...esentation.pdf

 

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You can probably do it without trying to be a father.

 

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Andyz. In California from what I know you need everything to be ready in order to pass your emission test. If the station is nice they'll check your ODBII readiness codes before hooking your system up to the process. Everything on my system was ready except for the evap system which he didn't even bother proceeding until it was ready. Automatic fail if he went through the process

 

This is excellent news. I plan to fail the EVAP monitor test when the time comes. I am really looking forward to it actually. I really didn't want to fix it in the first place, AND I don't have to be a father to get the monitor working

Thanks guys

 

you can have 1 incomplete monitor, it cant fail, your engine light would be on

you will fail for that intake though unless you have some C.A.R.B. sticker somewhere

 

So I went to get my car smog today again.... Failed. NOX was still to high. Got a 481 and the min was 437 at 15 mph. I need to change the cat convertor. More money I just don't have this year. I'll keep y'all posted. 578ej8. You could be right about the monitor things I forgot I had a code in the system which had no CEL but it still showed. It was a p1738. Second clutch pressure switch. Part was $75. At the dealer.

 

Yeah intake has been changed to one with a sticker. The ECU will not throw a CEL for an incomplete monitor.

When I had the car BAR'd a few years ago the Ref told me it would not pass smog with the EVAP monitor in incomplete status. Which is where my assumptions came from. Apparently not all Refs operate on the same information.

 

Fing Independent Sovereign Nation of California.

 

So I finally pass my California Emission Test after replacing the cat which cost me 250 installed. Magnaflow Cat part 46034. I score a 115 on the NOX at 15 MPH and the min is 437. and score a 55 at 25 mph and the min was 4something I forgot. Nevertheless I pass on my forth attempt on the 17th of may and went to the DMV today to get my sticker cause I can not wait for it in the mail because my tag are due on the 26th of May.

California Emission Sucks.

also today I change out my high pressure power steering hose. Two 2 hours. should have been one if it wasnt for after market change on where the pressure switch goes..

 

Update to this thread. Evap no longer need to be ready for Cali.

 

Not true at all. I just failed due to this exact thing and its driving me crazy

 

At a smog shop or the Referee? What year is the car?

 

You need a 3/4 tank of fuel. Cant have a full tank. Then Follow these instructions below. You just need to follow the ones including the evap stuff.

A. Begin by idling the engine while 2 1/2 minutes. Next idle for another 2 1/2 minutes with the A/C compressor and rear defroster on and while the transmission is in Drive (D); only of automatic transmission. This part of the drive cycle checks the oxygen sensor heater circuits, air pump and EVAP purge system.

B. Turn the A/C compressor off and rear window defroster off and accelerate to 55 mph at half throttle. During this step the OBDII system checks for ignition misfire, fuel trim and EVAP canister purge.

C. Hold at a steady state speed of 55 mph for 3 minutes. The computer will now be testing the EGR system, air injection pump, O2 sensors and canister purge.

D. Decelerate to 20 mph without braking (or depressing the clutch). Once again the computer system will check EGR and purge functions.

E. Accelerate back to 55 to 60 mph at half throttle. During this step the OBDII system will look for misfires, fuel trim and EVAP purge.

F. Hold at a steady speed of 55 to 60 mph for 5 minutes. Catalytic converter efficiency, EGR flow, ignition misfire, fuel trim, EVAP system and oxygen sensors operation will now be checked.

G. Decelerate to a stop without braking (or depressing clutch). The OBDII system will complete the drive cycle at this point.

 

^This works every time. I went through it while trying to get my swap BAR certified.

@blazeaglory420 to be clear, if your inspector is "failing" you because of an incomplete evap monitor, they are not doing their job correctly. The BAR clearly states that 96-99 cars may have any one monitor not ready and >1999 can have the evap monitor not ready. They should not be able to fail you outright as that is up to the state system, and it shouldn't fail you for something that's not a failure point. If they are refusing to complete the test because of the monitor, you might gently ask them to check their manual and try again. If that doesn't work you need a new smog shop. If no one will pass you, you can file a complaint with the BAR. Again, they are refusing to do their job.



On-Board Diagnostic Test Reference - Bureau of Automotive Repair

 

Hello MIMOG3, thanks for sharing this, can you please confirm the part A that says Idle with ac defrost on while in transmission is in drive......am i driving at idle no brake for 2 1/2 mins.........thanks for your help... After i swapped battery my evap and egr monitor codes won't reset i failed emissions...I've done about 200 miles pretty much how you've got it but they say run ac/ rear def while in park......thanks again I'll let you know how things go....all the best