jafdem Posted March 17, 2004 Share Posted March 17, 2004 I just bought a performance chip and it is supposed to plug into the IAT (Intake Air Temp.) Sensor. The directions say to plug into the two holes. But, there are 5 holes. Can anyone help? Thanks Quote Link to comment Share on other sites More sharing options...
bartkat Posted March 17, 2004 Share Posted March 17, 2004 Apparently you have one of those resistors that changes the IAT signal. My suggestion would be to get your money back or sell it to someone else, because if it does anything it will just make your engine run too rich and waste gas. Quote Link to comment Share on other sites More sharing options...
_DAG_ Posted March 18, 2004 Share Posted March 18, 2004 Hey, dude if i were you i'd invest in a header, intake, exhaust, and then go for the apexi s-afc. This will greatly improve your power. Quote Link to comment Share on other sites More sharing options...
jimcyzfr1 Posted June 4, 2004 Share Posted June 4, 2004 :( okay you need to sell it back it does not work an dturns on the check engine lamp. I work for nissan dealership and installed myselt the z1 module you speak of. I used snap on vantage scanner to get wiring diagram and prior to install took readings to see if it would even work. prior to install at full operatint temp intake air temp read 110 deg. with ambient "outside" air temp of 72 degrees. installed sensor as per instrucs and used wire diagram for proper 2 wires out of the 5. car started ran fine but check engine lamp on after 3 runs of less than 5 minutes. I then took after reading "note I cleared the intake air temp sensor code prior to retest" at full operating temp intake temp in scanner read 43 degrees out side air temp at 71 degrees. so yes the module tricks ecu that air going in is cooler but turns on the "cel" so what good is it? sell it not to mention the guy i bought it from will not respond and failed to respond at all even after I gave him the details I just posted to you guys. take their other sug, add header, down pipe, o2 simulators to keep "cel" off and go with srt intake with ecu piggyback kit. Quote Link to comment Share on other sites More sharing options...
Steve@Lextasy.com Posted June 11, 2004 Share Posted June 11, 2004 Yes that Z1 resistor is a POS. Get this IS300 SRT intake with a real ECU piggy back or this intake Injen intake for your IS300 More parts for your Lexus performance parts for IS300 here Quote Link to comment Share on other sites More sharing options...
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