90 N/A NO POWER please help!

[krbZX6590]

car hasn't run perfect since I got it. all of a sudden there is very very very little power it barely made it up a hill...so far I checked all coil packs and spark plugs and they're fine. ran a diagnostics and says nothings wrong. I'm thinkin it might be a bad fuel injector but I'm no mechanic it also takes a lot of effort getting into 1st gear. please throw out some ideas thanks

[nsrZ32]

Check your PTU (its on the right front of the timing belt cover) and make sure it isn't corroded or beat up. Lots of times on Z32's that's problematic.

[krbZX6590]

alright so I checked that out it doesn't seem like its beat up, however I think its time to get a new wiring harness. anyways...I fiddled around making sure all the wires were secure then I went for a drive and something kicked in and it went back to the way it was before, still not runnin like it should tho

[nsrZ32]

Well then its definitely electrical. Glad you were able to find that it was the harness