starts and dies after lim gasket

[bennyboy131]

starts then revs to 2k rpm, and then dies... i did the lim gasket twice because the first one i put in got twisted. car has been sitting for about 3 months. it has gas and i put seafoam in with said gas (fuel treatment). any ideas?
things done
new lim gasket
new sc gasket
throttle body gasket
o rings for between the sc and intake
o rings for injectors
new silicone vacuum lines
and some more

[BillBoost37]

That's a classic vacuum leak scenario. Check your vacuum hoses, especially the big ones like brake booster and the evap where it goes to the side of the TB (if you have a year with that)

[bennyboy131]

1998 series 2 sc grand prix gtp

[bennyboy131]

I put new silicone lines on everything

[BillBoost37]

OK.. then you aren't gonna wanna hear this, if you goofed a gasket the first time...could you have goofed a gasket a second time?

Did you put in all 12 LIM bolts?

[bennyboy131]

I did and I don't think so

[bennyboy131]

I did all the bolts and I'm checking the vac lines

[dsmuts]

Did you put the coolant o rings in? Where in IN are you located?

[buck531]

Did you tighten the LIM bolts once? twice? three times a lady?

[pontiac4lifesc]

spray some carb cleaner down by the LIM end gaskets, if she stays alive tear her back down and lay black rtv across the ends.

[bennyboy131]

im in nwi in highland

[bennyboy131]

and lim bolts were tightened maybe 4 times to double and triple check they sat right.

[dbextreme]

Check the big vacuum line that goes into the side of your throttle body for your evap. make sure that boot isn't split and it's snug on the nipple.

[Thompsju]

That, or the vacuum line on the back side of your upper intake.

[SDGTP99]

Did you plug everything in??

[bennyboy131]

I plugged everything in and i got new silicone hoses for my vac lines

[bennyboy131]

tried new fuel pump relays and it didnt do anything I did get a p1676 code though