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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Mechanical Maintenance and TSBs: Break-in / Oil & Fluids / Servicing / TSBs and Service Bulletin > Thoughts on why my car keeps switching to eco pro - non psi related
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      09-12-2018, 05:56 PM   #1
mbanks21
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Thoughts on why my car keeps switching to eco pro - non psi related

All my tires are at 36-37 psi, no warning lights or low tire pressure lights at all. It's completely random, I can be driving in sport or comfort and it kicks down to eco pro. I switch it back and it does it again. Sometimes if I restart the car it works fine other times it doesn't. Could a tpms be faulty yet not signaling a warning?
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      09-12-2018, 05:58 PM   #2
mbanks21
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Another thought is I have the maf sensor unplugged from the injen intake, are those two things linked in any way?
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