Hey guys,
i finally got around to checking the code my ECU was throwing and it appears to be a: 21 VTEC spool solenoid . VTEC defaintly hasnt been engagaing for a while, because i have really felt the loss of power up top! On the highway onramp today i kept second till 5000rpm behind this other car, then went to overtake him and the engine basically just revved out, making hardly anymore power!

So yes, this code started only after i got my exhaust work done/cooler piping installed. I orginally thought it would be a map code caused by the e-manage, but its not. I gave the solenoid a quick looking over today, looked fine with no leaks. I'm gonna fully check out my e-manage wiring/soldering tomorrow a well as take off the solenoid and clean it, but i was just wondering if anyone has had this code before and solved it! Anythig else i should look for? It worked fine after my conversion, the code started 3-4 days later.