Power Cuts in and out on long drives

[Ruley73]

Have you ever replaced the plug wires?

What brand of fuel filter did you replace the original one with? The Wix 33931 or Saturn O.E. filters are best. Others may not regulate fuel pressure within the correct specified range (36-41 PSI at idle) for Saturns. All those "others" are also made to work with flex-fuel vehicles which have a higher fuel pressure specification (about 45-50 PSI)

When your SES light comes on, does it blink or just illuminate continuously? If it blinks it is indicating a detected misfire condition.

I would also check for corrosion at the plug wire towers and the grounds on the mounting bolts of the ignition coils & module.

Have you checked your battery & alternator lately? The engine could be starving for power if either one is starting to go bad.

[saturn009]

I was finally able to get the trouble codes even though I think I figured out what the problem is.

Trouble Codes:
P0131 o2 signal low bank 1 sensor 1
P0137 o2 signal low bank 1 sensor 2
P0300 engine missfire detected
P1599 cc Power management mode or engine stall

I did end up taking the gas tank off and it was worth it. The gas tank had crud in it. I thought this might be the problem when it started to act up and I pumped the brakes to shake up the gas tank and it gained its power back. All I did was clean all the crud out of the tank and I havn't had any problems assuming that air pockets in the fuel line are still coming out.