mccldwll Posted September 9, 2008 Share Posted September 9, 2008 '05 RX330 When initially start from cold, runs at about 1600 rpms for first minute, then drops to around 900-1000. Is staying so high that long normal to get up to operating temp? Thanks. Quote Link to comment Share on other sites More sharing options...
blk_on_blk Posted September 9, 2008 Share Posted September 9, 2008 Probably not. You may want to clean your MAF. It sounds like you may have a sensor that is a little askew and it's reading high/low/slow upon start up. The MAF is a good place to start. Usually they just get gummed up an a good spray with electrical cleaner is enough to improve their response. Quote Link to comment Share on other sites More sharing options...
bokch0y Posted September 10, 2008 Share Posted September 10, 2008 It's normal. Both my IS and RX at initial startup when cold outside run at revs around 1400-1600 for a minute or so and slowly drop. From what I understand this is due to the cold start valve opening up, correct me if I'm wrong. But it isn't something i'd be concerned about. Quote Link to comment Share on other sites More sharing options...
Running Ox Posted January 7, 2009 Share Posted January 7, 2009 same thing here. waiting for solutions. Quote Link to comment Share on other sites More sharing options...
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