My d15z1 manifold cracked on me recently and I couldn't find one to replace it. So I took the complete exhaust manifold, catalytic converter, down pipe, and muffler off may DX hatchback I have sitting for parts. Both cars are 92-95 hatchbacks. When I got it hooked up I took the car for a drive and started to smell smoke. The catalytic converter was glowing red and smoking. I really need some help on what is happening with the cat. Any suggestions or knowledge will be GREATLY appreciated.

 

You are running lean. Did you do any changes at all to the engine besides exhaust swap?

 

yes. I changed the head gasket... the timing is off...

 

There you go.

 

you are a life saver! I'm going to fix that tomorrow. I let you know how it went. thank you!

 

Lol I didnt do anything, you solved it yourself!!

 

lol i wouldn't have thought of that right away though. I still haven't fixed the timing!! I hate having other things to do!

 

so i guess not a complete life saver. I followed this thread on adjusting the timing http://www.hondacivicforum.com/forum...ustment-16210/ After I got the timing right I gave the car some gas and right away it started idling high then low. did I do something wrong or is it another problem.

 

IACV

 

...my envy for eg is dying lol.
im going to try to clean the iacv today....

 

Tonight I made sure everything on top and under the engine was hooked up right and came across a hose mid engine wasn't plugged in.... I redid the timing and the idle stopped "hunting", but! now when I give it a little gas it wants to idle real low then die...I don't have a CEL at all... I've looked online for some reason it's doing this and haven't found anything. Do you guys have any suggestions? please and thanks!

 

So as an update. I have my car running smoothly once again! but the CEL turns on after a bit of driving. The car isn't over heating. So i'm thinking it's the vx O2 sensor. I have to drive kinda far to get to my dx so I wanted to ask if I should get the O2 sensor from the dx and connect it on my d15z1 engine

 

Shouldnt be a problem...

 

okay. well it's been a couple of days and I haven't seen the CEL come on so I don't know what's up with my car...