Question about 1999 BMW 323i
Posted by Anonymous on
I would recommend checking for an intake air leak. Under the intake is a crankcase vent valve that can rupture as well as lines connecting to it. I would also check the rubber bellows from the air mass meter to the intake and make sure they are not split or torn which is also common.
Posted on Sep 04, 2014
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Posted on Jan 02, 2017
p1188: Fuel Control (Bank 1 Sensor 1)
p1189: Fuel Control (Bank 2 Sensor 1)
p0171 and p0173: These are very common codes on BMW's which can also be false codes, try clearing the codes and run the test again they may not come up again.
p1250: Never came across that....
Posted on Nov 26, 2009
SOURCE: Hi...I am looking for diagnostic
Based on the numerous codes and others who have experienced many of these problems, I would say you have a vacuum leak near the intake. I would also clean my DISA and ICV as well.
Please buy a Peake code reader (No..I don't sell them but I can vouch that they save time and money in the long run. A generic code reader will have you throwing thousands of dollars into repairing your car that aren't needed.). The Peake code reader is BMW specific and gives a more detailed result because the reader scans BMW specific codes that a generic OBD 2 reader can't.
This guy has an excellent video on how to clean your ICV and I think he has one on the DISA (which is next to the ICV):
Hope this helps!
Posted on Feb 10, 2011
Linear 02 Sensor / Compensator Resistor Short to ground
Linear 02 Sensor / Compensator Resistor Short to B+
Fuel Trim, Bank1 Malfunction
Basically you need a new oxygen sensor, The fuel trim code is from the computer trying to adjust the fuel/Air mixture to compensate for the bad signal from the sensor. Just change the one closer to the engine, the one behind the Catalytic converter will thow a different code when it fails.
Posted on Dec 07, 2008
SOURCE: Just got there codes for my 2000
P0304 = #4 cylinder misfires
P0170 = Fuel Trim, Bank-1
P0173 = Fuel Trim, Bank-2
P1250 = this is invalid code for BMW
P1188 = Fuel control, bank-1, sensor-1 (pre-cat sensor)
P1189 = Fuel control, bank-2, sensor-1 (pre-cat sensor)
Vacuum leaks and/or sensor defective for the issues of the codes.
This error codes really need parts to replace. But you have to replace the thermostat first. Then clear the codes and see if any reappears,then replace defective part/s
Posted on May 01, 2012
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