Finally, after about 4 months without my beloved CRX, I have it back. It's got a stock D15B2. But (there's always a "but" isn't there?) it is running pretty rough. It idles at about 1200-1500 rpm after initial start up but once I get moving, it will want to die in between gear shifts. It's died at stop signs, traffic lights and on the highway during stop and go traffic. After it dies, I'll restart it and the engine will idle at about 1500 rpm and then surge like crazy again. I noticed I have 2 hoses missing from the charcoal canister and 2 hoses missing from the back of the intake manifold (under that black round DPFI thingy). Is it safe to assume these are all connected somehow and this is the reason my engine is idling the way it is? Thanks!


Modified by progress at 10:02 AM 4/19/2006

 

i think those hoses have to be connected or your car will run like ****.. why dont you connect them and see what happens?

 

Alright. I took some pics so hopefully this will get some type of response...

As stated above, I have been having idling issues since I got my CRX back, and it's been pissing me off. I'm also experiencing bad gas mileage, like 200 miles per tank full.

First pic is of the charcoal canister and circled in red are the fittings that are missing hoses.


Next pic is the back of the intake manifold with the fittings missing hoses also in red.


I'm assuming the fittings on the back of the IM connect with the fittings on the charcoal canister. Do I need to connect them or can I plug them up and if I can plug them, what do I plug them with? And in doing so, whether it's attaching hoses or plugging up the fittings, will this solve my idling and gas mileage issues?

Next pic is the Reverse Light Switch wires. Does the yellow wire from the switch (circled in yellow) connect with the yellow wire coming from the harness (circled in red)? And where the hell does the black/green wire (circled in green) connect to?I don't see any wires that it could connect to?


Last but not least is the final image....what the hell is this for? I found it tucked near the firewall to the left of the charcoal canister.



Modified by progress at 9:57 AM 4/19/2006

 

Just edited. Now includes pics.

 

Well, after wiping off the 16 year old grime from underneath my hood, I found the vacuum diagram so hopefully I'll be able to fix my idling and fuel consumption problem. All I need to do now is find the wires that the bullet connectors from the reverse light switch connect to and I'll be set. Anyone?

 

The reverse wires are the ones by your tranny. Basically, color match those.

The "mystery" piece that your holding looks something like a TPS sensor. I have an Si, and that looks alot like my TPS sensor, but, the TPS is on the TB in my car, I don't know why it'd be dangling in the back of your bay.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VegaS10 &raquo;</TD></TR><TR><TD CLASS="quote">The reverse wires are the ones by your tranny. Basically, color match those.

The "mystery" piece that your holding looks something like a TPS sensor. I have an Si, and that looks alot like my TPS sensor, but, the TPS is on the TB in my car, I don't know why it'd be dangling in the back of your bay.</TD></TR></TABLE>

The wires in the pic are coming from the Reverse Light Switch. There is a lone yellow wire coming out of a harness which I think connects to the yellow one from the switch. My concern lies with what to connect the green/black wire to. I don't see anything nearby to connect it to. The closest wires are the ones that are hardwiring my fan to the battery. If it helps, everything above the tranny came from an automatic. Don't know if that makes a difference or not in regards to wiring for the reverse light switch.

I figured out the mystery piece is my MAP sensor. Thanks!

 

This is a pic of my firewall. AS you can see, I've got my charcoal canister, MAP sensor but I believe I'm missing a purge solenoid or something like that.



According to the underhood vacuum diagram, there should be a purge solenoid thing where the red hose connects to the firewall. Or am I mistaken? Also, what does that plug near the MAP sensor plug in to? And where should the MAP sensor connect to as I know it doesn't just hang there.

I also connected my vacuum lines from the TB to the MAP sensor and the charcoal canister but my idle is still surging from 1250-1500 RPM. I should've just searched for a damn D16 to swap into my CRX. Oh well....There's always next time.

 

the hose from the map sensor should connect on the TB right next to the idle adjustment screw. you don't need the solenoids or the charcoal canister so that should have nothing to do with your idle