So my friend has a 99 civic ex with d16y7 with y8 intake mabifold. It still has the original p2p but doesn't throw any cels(yes it works). Shouldn't it be throwing a cel for vtec? It still has the original y8 harness so the plugs are there just not plugged in. Also the ecu is not chipped and as far as I know it still has the vtec components.

So my two questions are, should it be throwing a cel for vtec? Since its not throwing any cels and running great will it be able to pass smog as long as everything else checks out?

TIA

 

from the looks of it no it will not pass cali smog it will fail visual and OBD check

if its the correct ECU yes it should have a code for (vtec malfunction)

 

So any idea why its not throwing a cel?

 

CEL actually work? Really though, if what was said above is true this is all moot.

 

Yes cel works fixed a couple codes yesterday. Car runs great no problems and no cel. Like I said I was expecting for a vtec cel

 

Only thing I can think of is possibly the vtec components have been removed from the ecu?

 

I guess if you can add them you can remove them as well. Crack it open. Take a pic.

 

Alright I should have a pic up later today, thanks grumble. Also I take it if I put in the y7 ecu I'm going to get a code for the iacv correct?

 

 

Any help?

 

If youre not getting any codes you should be fine. I dont see why it would put out more smog.

go for it OP. I passed with a Y8 intake manifold, didnt you post in my thread?

 

No I don't think I posted in your thread. You passed but were using a y7 ecu correct? Even if it does pass I'm curious to why it doesn't throw any cels with the p2p. Can anyone tell me if they ecu pictured above still has the vtec components installed?

 

Need help

 

No one can tell me if the vtec components are still in this ecu?

 

?????

 

..........

 

Mods can you please move this to engine management and tuning please