This is just in case it helps anyone. Gotta 94z28, been doin the low rpm hesitation thing for awhile. After reading a lot here (thank-you very much guys) I disconnected the air pump, have a good fuse and relay in. I also found that if I simply touched the wiring clip going into the MAF sensor the car would die. Tapped the Maf w/ screwdriver, and car would not die. It was only when I touched the clip w/ 3 wires going to MAF. I secured the wires a little more. These things cleared up the hesitation, and a lot of the "revving up at stop lights" problem. You guys know any more about this problem? Car wants to GO when stopped in gear.
Thanx a lot, you guys give good advice.
Jason

 

what do you mean "secure" the wires? Do you mean tape them down or something?

 

ya pretty much. I think its the yellow(signal) that is not completely attached. Taped around the wires and took the clip apart, put it back together. I dont know if it was that or disconnecting the air pump that did more of the fixin. I also diso'd the neg. on battery overnight as final step to reset computer. Seems to run ok, nice and fast.I'm trying to sell it.CHEAP! 94Z, $4500 in Tucson, az