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ok i have a curve neck ze in my 96gs OBD 2 i have the klo2 vaf sensor everything runs fin start up is good but when i start driving and when i stop my idle starts jumping from 1000-1500 sumtimes it will settle but 95% of the time it will be jumping like that ppl always look at me and stuff cuz its so noticable from outside all you hear is vroom vrooom vrooom what cold the problem be i am pretty sure its not because its obd2 cuz many have done this swap and no1 seems to complain could it be vacume?

Sounds like a vacuum leak. I had the same problem not long after my swap. A small vacuum hose had come off around the back of the manifold going to the actuator for the charcole canister (mounted on the firewall). Not saying its going to be the same hose, but sounds like a vacuum leak somewhere.

yeah thats what i am thinking too i am gonna chack all of my vacume lines