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View Full Version : BMW e46 Codes P0170 P0173 P1188 P1189 P0304 P0305 SOLVED



vicbimmer
04-12-2011, 12:44 PM
Mi 323i was throwing this CEL codes P0170 P0173 P1188 P1189 P0304 P0305 the car was giving me a hard time, rough idle, the shaking was really bad and the gas power almost none !!!
Changed Fuel filter, 2 Coils, air Filter, spark plugs, it was good like for two rides then it comes again with the same problem !!!
Finally checking some forums got some tip so I ordered and changed the complete 5 CCV system hoses (one of them was cracked burned) and the MAF boot intake (it also was cracked ant letting air leak through it)
after replacing that hoses OMG what a difference the car was smooth the engine sounds great like new and the CEL codes went off automatically and hasnt come back !!
Hope this helps for any of you out there having the same problem !!!

jc1863
04-30-2011, 08:54 PM
I am having the same problem. Where are the hoses located?

dworthy
04-30-2011, 09:16 PM
Mostly under the intake, you don't have to remove it, just everything around it. Check ECS tuning, they have a kit for 200 bucks or so.

danewilson77
04-30-2011, 10:37 PM
Thanks for the data Vic. Well done...researching and repairs.

Eurodriver20
05-01-2011, 12:36 AM
Thanks for the help.