HDP

iTrader: (2)

Is the BAC valve (bypass air control) the same thing as the ISC valve (idle speed control)? Also, is a BOP (block off plate) required on the UIM (upper intake manifold) for the air tube coming from the catalytic converter? Thanks.

books

iTrader: (8)

I'm not certain the 3rd gens use the acronym BAC. It does have a device called the Air Bypass Valve (F-77 service manual). The idle speed control valve is located at the back of the UIM. If I recall correctly, it has a white connector (page F-83 of the service manual).

HDP

iTrader: (2)

What about the BOP for the cat pipe? Anyone?

AgentSpeed

I thought that BOP was on the upper part of the LIM. I believe I put a BOP on mine when I removed my cat.

Did you get my PM yesterday by the way???

HDP

iTrader: (2)

Ahhh, you're correct it is on the LIM.

Yep, I got it.