I am looking at my Helm's manual, and my setup seems to be different then illustrated in the manual. My map sensor is located on my Throttle Body and my intake manifold doesn't have the PGM-FI logo on it. I went to a couple junkyards to find some parts and it seemed all the other DA's had a different setup. It seems I'm missing some vacuum lines or something. Can you guys check out my pictures and see if you see something abnormal or missing? 1991 LS btw. Thanks

 

just discovered its actually a B18B1 rather than a B18A1 haha looks like the previous owner swapped it. My Helms manual isn't as helpful anymore...damn.

 

haha i was just going to say, might also be from a b20, ya never know. I hate vacuum lines =(

 

That appears to be EVAP purge hardware. Getting any codes?

 

yeah I'm getting a MAP code. it blinks 3 times

 

yes, the vaccuum lines in the pics connects to the purge solonoid. you should be able to find them at the junk yard. i see them all the time there. i just sold the extra one i had the other day.

 

ok thanks, what about the one coming from the charcoal canister?

 

I believe it's "connect the dots" - i.e. the one circled in yellow in the top pic connects to the one circled in yellow on the bottom one?

 

They both connect to the purge solonoid. The one coming off of the IM plugs into the top of the purge and the one coming from the charcoal canister plugs into the bottom of the purge. And you should have a plug dangling from your wire harness in that area to plug into it too. If i were at home, i could post up some pics. I'll try and remember to later if your still lost by then. Hope this helps.

 

who ****ed up your wiring and why is it just sitting there? what did they tap into?

 

looks like a sloppy/unfinished swap

your air intake has an uncapped bung that is letting unfiltered air into your motor, normally it would be connected to the fresh air inlet on your valve cover. What is the deal with the masking tape on the air intake as well?

 

Here is what the EVAP setup looks like on our Civic Si. You should be able to see all the tubing for vacuum, and the electrical:

Hope this helps.

 

cool, thanks for the info! I'll try to source one from a junkyard

Thats for the TPS plug. The previous owner ghetto rigged the wiring and it was just horribly done. I redid the wiring for the plug earlier that day and haven't wrapped it up yet, so thats why it looks so bad. The car isn't being driven at the moment so they're not in danger for now.

it is definitely a sloppy, unfinished swap. The kid I bought it off of was a sketchy idiot. I am getting a hose soon to connect the air inlet from the valve cover to the intake. The tape is to cover up some holes that they drilled in it haha I'm replacing the intake with either a better CAI or just stock intake pretty soon. Just slowly de-ghettoizing this engine