Recent content by Hiccup

I can't hear my IAC clicking when the engine is running, even with the hood open. It can only be heard once the engine is off and the ECM tells it to open fully, which results in several clicks after the engine is sut down. If you hear clicking with the engine running and the hood closed, I...

On the U.S. models clicking is normal operation for the Idle Air Control Valve (IAC) and indicates it is working. If the unit does not click several times after the engine is stopped it is faulty. I wouldn't know if this applies to cars DU. HTH

I am planning on 2" pipes into a center 2.5" converter & pipe. You're right on with it wanting more fuel: it just started throwing a code 25 (too lean) yesterday.

Thanks for the reply. Yes, the stock cats were deleted for a giant single, and yes, it didn't leave much of a center section. As for the pipe sizes, you're preaching to the choir! I have been following most all your post here & on CL. I don't want to make an extensive post, so let's just...

Interesting. How is your design different from the racing merge collector? Have you seen or tried the y-pipes from Dr. Gas? (www.drgas.com) If so, what do you find lacking? I ask because I just used one of them. I installed the S&S Headers on my 1993 SC400 about 2 weeks ago and used 2.5"...