I had a non-vtec f22 before my h22a. I will do what you said to do I still have my cel kick on sometimes with the code 12 even after I replaced my egr valve

 

odd that you still have the egr code. the pic of the hatch's h22 that looks like the egr isnt even hooked, he may have made/got a plate to block the ports all together.

about the secondary runners. have no clue, dont have them.

 

I only picked '97 Prelude at random - I don't know which other years have that too...

You need the vacuum reservoir bottle, the IAB solenoid valve, & wiring connections to the ECU. Oh yeah, you need an ECU that's programmed to drive that system.

Like I said, check the Prelude forum, since those guys would know about it. If it were an Integra B18C1, I could tell you what wiring connections are needed.

 

Yea its shitty getting the egr valve code 12 coming on after buying the egr valve($200.00) I'm going to start researching the prelude forums

 

Does it make a difference if the egr valve(prelude) being controlled by the (accord) egr soleniod ??

 

Clogged EGR port on the intake manifold. Youll have to take the IM off and clean out that port.

 

I need to know where those vacume lines go also I think mine are connected wrong if any body has other pix please post thanks

 

I'm going to try using seafoam and see if that helps. So I would have to take of the intake manifold to clean the port? If I have to I will do so, just doesn't sound to fun, if I take it apart I would probably take out the secondary runner setup.

you can take a look @ a couple of my pics and see if that helps any

 

It seems your having the same problem i am. I have an 89 prelude, 2.0. I pulled the vacuum line to the egr valve, and theres no vacuum. I replaced the egr solenoid in the control box, and still nothing. Im in the same boat, confused as all heck, and not knowing how to fix this thing. Im thinking of just junking the car and buying something else.

 

Well I still have same prob. I was wondering if the prelude egr conrtol solienod box is different then the accords? I replaced my accord egr control solienod box with one from the junkyard and the car was being funky I think it was keeping the egr valve open all the time so I put the old one back in and well same thing I get a cel code 12