Problem with Idle after Supercharger Rebuild

**GoBlueDawson** · 01-31-2013

I rebuilt my blower, and snout over the past couple weeks, and put in some new stock injectors which solved my 6th cylinder misfire problem. I also switched out some of the vaccum lines with some I had purchased from ZZPerformance. Now the car sputters like a cammed out muscle car between 750 and 1000 RPM bu..bu..bu...bu, and it wont read boost on the center led display, but the car drives and pulls just like it use to so I'm confused. I can hear a hiss near the boost bypass valve so I swapped it out and its still doing the same thing and I checked all of the vaccum lines. Please help

**BillBoost37** · 01-31-2013

Sounds like you left the map sensor disconnected from the vacuum line. It's in back of the charger.

**Scottydoggs** · 01-31-2013

check the fat vac hose from the top of the TB, it loops back to the evap on the back of the engine, you cant always see the crack but can hear it.

after i did my lim job mine broke, did the same thing. sounded like it had a big cam.

**GoBlueDawson** · 02-01-2013

Dang you guys are good I unbolted the MAP sensor and didn't even notice the vacuum Line, where does the other end of that vacuum line go is my other question?

**Erik Adam Rodriguez** · 02-01-2013

nipple under the snout

**BillBoost37** · 02-01-2013

Remember that T under the SC snout, it should go from that T to the map sensor.

**GoBlueDawson** · 02-01-2013

Alright so what does the other sensor back by the MAP sensor connect too?

**Scottydoggs** · 02-01-2013

**BillBoost37** · 02-01-2013

What year are you?

If you have two map sensors, one stays open, one gets a vac line. Otherwise..the other dealio is the evap or california emission bs

**GoBlueDawson** · 02-01-2013

Its a 1998 I took a picture of it, how do I post it into this thread?

**BillBoost37** · 02-01-2013

You load it to a hosting site like photobucket and then link it in

It'll have a red electrical connector ...that's evap.

**GoBlueDawson** · 02-01-2013

Check out this photo from Snapbucket: ? Sensor On Back Of SC Photo by ectrojan1918 | Photobucket heres what im talking about whats the left side connect to?

**BillBoost37** · 02-01-2013

Pissed myself about the gloves.

That's evap. See the diagram above where the line leaves the evap and goes to the throttle body...that's what should be connected to that. Use regular rubber hose to make that connection again.

Meanwhile..what's it connect to..nothing..it's broken!

**GoBlueDawson** · 02-01-2013

What's the deal with the gloves?ha $5 bucks at any farm supply store perfect for bailing hay ha, I don't get what is broken I unbolted that, and the vacuum line is off but the barb is not broken. I may sound like an idiot right now but I'm running on no sleep in the past 45 hours

**BillBoost37** · 02-01-2013

the line should be attached to the piece that is attached to the soleniod. No biggie. Reconnect it and smile.

The gloves caught me off guard. I'd expect to see Bert or Ernie at the other end of those gloves...lol

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