Umm is this my EGR? If so, why do I have one? I thought they didn't come on CRX's...anyone know? Am I wrong?

Sorry bout the pics, these are the only ones I have handy and they were not aimed at the part I am talking about, but it is circled in the pic. If I get to my garage today I will take some upclose and better pics.

 

HF crx's came with them and no thats not a egr valve, well my 89 crx did

 

So what the expetive is it? Lol...I don't see any other CRX's with it...I mean, I unplug the wire and nothing happens, I put it back in and still nothing...Haven't checked to see if it throws a CEL though...

 

No that is not the actual EGR valve itself. Not sure if you have an si or not but my HF had an EGR purge valve on the firewall along with a map sensor. The actual EGR valve is not in your pic cause thats a JDM b16. Japan does not use EGR valves cause i heard they don't have emmisions.

If your concerns are hooking up the valves on fire wall you only need one. The si only has one as other models have 2 purge valves on the firewall. You do not need to use the EGR purge valve at all for the b16.

 

Sorry forgot to mention, it is an '91 Si

Ok, so why is it there? Lol..I heard them being on HF's...but Si's? I'm leaving right now to take some pics and figure some things out.

 

So then you only have one purge valve, it is for releasing vapors from your charcoal canister.

 

Hmm so should I just leave it on? I wanted to remove it, but didn't want to without knowing what it was/is. I'M GOING TO TAKE BETTER PICS RIGHT NOW TO CLEAR UP ANYTHING CONFUSING!!

 

Well don't you have a vac line on there that you placed a t on and then split the vac lines for the b16??

If you remove that where will you get your vac source from?? pic of vac lines and setup would help

 

It's the stock map sensor.

 

Yea, the t's there and everything. Here's the pics though.
There are two plugs, one on top and one on bottom (see pics). I pulled the bottom one and the car bogged really low and threw code 12 and 13 (read really quick and wasn't double checking, but I'm sure they were right), EGR lift sensor and BARO sensor.




And here's one that shows the whole system...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by denraweb &raquo;</TD></TR><TR><TD CLASS="quote">
</TD></TR></TABLE>the part on the left with the lower connector plugged into it is the MAP sensor - disconnecting the connector will give you a check engine light with code 3 - the part on the right with the upper connector plugged into it is the purge cutoff solenoid - unplugging it won't throw a check engine light - all of the vacuum lines goint to the MAP and purge appear to be correct

 

Ok, I unplugged the one that you said goes to the MAP sensor and it didn't throw a check engine light, but it threw codes on the ECU, 12 and 13.

 

If everything is running good why do you want to eliminate it??

 

i got rid of all that stuff on my crx. but im having a problem with my 1990 hatchback not passing emissions right now. someone mentioned that it might be the EGR valve. i was lookin and i thought it was something else. maybe i can find a pic. hmm...

heres a small pic...

http://alflash.com.ua/Honda/EGRvalve.jpg

 

1990 hatchback doesn't have EGR valve, unless it was a DX originally sold in Calif. with automatic transmission

 

DO not unhook ant of those.
1 is the map sensor which you need
2 is the iacv witch you need for your vaccum lines, and ur car to run right.

 

so how do i fix my car so it will pass emissions if my 1990 hatchback failed with HC and NOx??? please let me know asap. cuz i gotta get it fixed before its too late. i already asked for a date extension. lol.

 

get the parts you are missing and a tune up...filters, plugs, etc. you should pass

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">the part on the left with the lower connector plugged into it is the MAP sensor - disconnecting the connector will give you a check engine light with code 3 - the part on the right with the upper connector plugged into it is the purge cutoff solenoid - unplugging it won't throw a check engine light - all of the vacuum lines goint to the MAP and purge appear to be correct</TD></TR></TABLE>

What will happen if you don't hook up the purge cutoff solenoid at all? I'm just a bit curious..

What is it's purpose?

And, sorry for my ignorance, but what does EGR stand for?

[I'm really not trying to threadjack here.. haha.. I swear]

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zrickety &raquo;</TD></TR><TR><TD CLASS="quote">get the parts you are missing and a tune up...filters, plugs, etc. you should pass</TD></TR></TABLE>

i just replaced the spark plugs and wires after they said i failed the HC and NOx. i figured that would fix the problem... but i wanted to make sure. should that pass me then???