my car has always seemed to had a low idle since i bgot it and now i have a high idle after doign soem maintenance and returnign parts to stock. i had decided to change the fuel filter and in doing that i broke the fuel pressure gauge plus the fitting that was used for that gauge was weird and didnt want to tighten rigth. so whiel i was at the junk yard i picked up the right bolt for the fuel line and a stock fuel pressure regulator. i have an obd0 ecu but the injectors are obd1 so i picked up a regulator from z6. i had bosch platinum plugs but i switched to ngk due to lots of godo advice. i dont seem to have any vacuum leaks at all btu the idle is high around 1100 - 1500 once warmed up and it varies. anyone have any suggestions?