Running Lean on start up
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Running Lean on start up
Recently my IX has decided that it wants to run lean on cold starts. My O2 will read below 20 for 3-5 minutes then the engine will rev up to 2,000 RPM and the AFR will correct itself. After that initial 3-5 minutes the car seems to operate fine and the AFR stays around 14-15.
Any ideas on what to check?
Any ideas on what to check?
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To follow up on this. If I let the car warm up it'll idle and drive fine; however, if I shut it off and start it back up in the next couple of minutes it'll barely drive and shows running lean. If I let it sit for another 2-3 minutes at idle then it drives fine. Thoughts?
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The tune is about a year old now. I should have mentioned this started around the time I decided to mount my pump / e85 switch and managed to blow the fuse to the ecu which prevented the car from starting. Is it possible this could have had an effect on the tune?
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