should get that timing belt done asap.

you can pop off your upper timing cover, get your motor to TDC, and make sure your valve timing is correct and nothing jumped a tooth.

i'm pretty sure those cars are map sensor, and they tend to come apart. we've also replaced a couple of those cam/crank angle sensors. see if it's misfiring, you can just let it run and pull the plug wires off 1 by 1 so you can see if it's got a cylinder that's not firing/ and which cylinder it is to then determine if it's not getting fuel/spark/compression.

gl
Dave