| [ http://www.twinturbo.net/net/viewmsg.aspx?forum=technical&msg_id=782765 ] [ http://www.twinturbo.net/net/viewmsg.aspx?forum=technical&msg_id=920429 ] [ http://home.swipnet.se/e-solutions/ ] Also look into the service manual for idle issues [ http://300zx-twinturbo.com/cgi-bin/manual.cgi?list=efec&dir=&config=&refresh=&direction=forward&scale=0&cycle=off&slide=67&design=default&total=190 ] As you can see idle issues could be many things and resolve starts with a systematic inspect and clean or replace. Check for vacuum leaks as noted by na300zx. My NA pulls 20.5"Hg at idle and 21.5" Hg at 2000 rpm all with a very steady needle and I don't have idle issues Clean the throttle bodies with cat and sensor safe spray and tooth brush clean MAS conector and the sensor (careful here to get the right spray - radio shack connector cleaner and just spray it thru the screens and let sensor drip dry) coolant temp sensor corrosion at connector PCV's semi plugged. Replace with OEM valves and hoses corrosion at injector connectors, bad if corrosion has crept up the wire from the connector and no way to see this unless you replace the connector by cutting the wires. If connectors have lots of green corrosion most likely the wires corroded perhaps about 2" in? injectors going out - ohm them to see if 10 to 14 ohms. Do this when connector unplugged and only use a digital meter. coolant thermostat not operating properly faulty EGR valve and carbon restricted passages etc .......................
ZUL8TR in Orlando,FL |
23:20:52 03/03/10
