transpar_nt

This weekend I'm swapping a b18b into my 92 civic, but there is still one part I'm lost on. For clarification, the head and block are from a '97 ls, but the intake manifold is from a '90 ls. (It's a long story. Before you tell me to just get an obd1 IM, I don't live in a big city and don't have access to one right now.)


{pic borrow from ThE bEe GuY}

1) What are the two sensors that are just to the left of the map sensor, on the firewall to the right of the intake manifold?

2) Do I need both of them? (Someone said I don't need one of them but that doesn't sound right...)

3) The DA has one plug for both of the sensors (2 wires to each), but my EG has a 2 wire plug to the evap sensor, and another 2 wire plug that connects to the back of the IM. The B18 intake has no place to plug this connector into, so could it be that the extra sensor on the DA is just inside the IM on the EG?

I know what I'm doing with the rest of the sensors and vacuum lines, but have no clue what to do about those two sensors (vacuum lines and electrical plugs). Someone please help me. I'm getting really desperate and don't know anyone locally that knows anything about hondas. Can anyone explain the extra electrical plug on the back of the EG's IM (where there is none on the DA IM)?

EDIT: Yes, I made a thread about this in the Hybrid forum a while ago, but it just doesn't get enough views there and I need to know this asap!!


Modified by transpar_nt at 6:31 PM 12/1/2005

2lua

those two sensor a vac. switches for egr.

transpar_nt

I figured out the answer to question 3, and you answered 1. I'm still unsure on question 2 though. Do EG's only have one egr vac switch?