My 88 2.1 4spd. starts and runs good...but after about 20 miles on a trip
it starts to die..it's as if the air or fuel is being cut off.

Then I open the engine compartment, and throttle it by hand it seems to
"snap/pop" in the air intake...as if something is snapping shut???not sure
if it is popping back from the engine...and as the seconds tick by, and I
keep giving it trhottle it dies down and then stalls.

Here's the wierd thing. When I turn off the ignition, it starts right up
and runs fine for about a minute then she starts to die again.

It's done this a couple of times in the last month, but came out of it,
but this last time it just wouldn't straighten out...

Any help/info would be great.

John Wallace
Rumford, Maine