Lexus IS Forum - View Single Post - My Is dosent rev past 3000 rpm
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post #3 of (permalink) Old 06-13-2012, 01:32 AM
Join Date: Aug 2009
Location: Pittsbugh PA
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A bad MAF will cause this too. See if you can read airflow on a scanner. Check your OBD fuse otherwise it said it "wasn't ready" because you had just previously erased the code. The scanning of the sensors resets after x many miles and x many startups. Don't erase them until you know what they are. They will lead you to the problem.

Edit: You could also be in limp mode and have a bad positioning sensor. Here is another same issue but was MAF.

Need codes plz.

'02 IS300 MSM LSD

Last edited by jasonm4; 06-13-2012 at 03:21 AM.
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