On my way home my 92 GVR4 (stock except for E8 injectors, 3g maf, chip) acted like it went into limp mode. This happened on the freeway on ramp, probably not quite warmed up. Would not rev beyond 3k rpm even with no load, and would not exceed about 20 mph. So I pulled over and shut it off. Started it up, and it drove fine again on the freeway the rest of the way (about 6-7 miles). At the end of the off-ramp I had to stop for a light. It did it again, so I pulled of to the side again, and did the restart again. All was fine the rest of the way home.
Right before this happened, I had a bit of hesitation accelerating just after starting out. It has done that a bit lately when not yet warmed up, but seems to go away when at operating temp. No codes, lights etc.