DTC 1174 and 1175 - BMW Forum - BimmerWerkz.com
5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

 
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#1 (permalink) Old 04-17-2008, 01:04 AM
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Jakers is on a distinguished road
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DTC 1174 and 1175

I am preparing to sell my 97 540i with 126K on the odometer. The car has two problems that I would like to fix before I sell it.

The primary issue is that the check engine light keeps popping up. I have scanned the codes and keep getting 1174 and 1175. I clear the codes and the car runs fine for a few day and then the codes pop back up. I just replaced the precat o2 sensors with a pair of new Bosch sensors.

Any suggestions?
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#2 (permalink) Old 04-17-2008, 01:10 AM
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sp0rky is an unknown quantity at this point
Could be a vacuum leak or MAF as well as a bunch of other similar things.

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