1996 BMW 328 FAILURE EMISSION

Tiny
ISAACX55
  • MEMBER
  • 1996 BMW 328
Engine Mechanical problem
1996 BMW 328 6 cyl Two Wheel Drive Manual

my BMW failure the emission test and the computer shows the PO170 AND PO173 codes. They told me that has a rich mixture and unburned fuel! What I can do to fix it? I think is a some sensor because it dont has a vacum liks and the car runs perfect!
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Tuesday, July 14th, 2009 AT 8:34 PM

8 Replies

Tiny
RASMATAZ
  • MEMBER
Possible causes include a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode
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Wednesday, July 15th, 2009 AT 5:15 AM
Tiny
ISAACX55
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I changed the senssors, the o2, and the fuel pressure regulator and I still have the same problem. What suggestions or what other solutions are there?
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Sunday, July 19th, 2009 AT 6:05 PM
Tiny
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How about the rest of the stuffs do they checked out also?
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Sunday, July 19th, 2009 AT 7:57 PM
Tiny
ISAACX55
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Does the coolant really hav to do anything wit my problem? My car tells me to check the levels of the coolant but the levels are all fine or is it possible that its the cars computer and the code was PO600
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Monday, July 20th, 2009 AT 2:51 PM
Tiny
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P0600

This code indicates that the computer PCM has lost of serial communication link, the PCM will need to be replaced to repair this problem.
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Monday, July 20th, 2009 AT 2:56 PM
Tiny
ISAACX55
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What is PCM?
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Monday, July 20th, 2009 AT 3:02 PM
Tiny
RASMATAZ
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The computer-PCM (Powertrain Control Module)
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Monday, July 20th, 2009 AT 3:04 PM
Tiny
ISAACX55
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I reprogramed the computer, the specialist told me to check the basics first and go from there, like check spark-plugs, coils, any vacum leaks which I alredy did and he told me that the oxygen sensors are reading to rich, besides those two codes two new other codes appeared P1188 and P1189 sometimes it detects the cylinder codes as a problem but it goes off right awway sometimes two codes and other 3 or more what do you recomend doing from here?
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Thursday, July 23rd, 2009 AT 2:55 PM

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