The car when first start up runs rough when it first starts up but runs good after warms up. 2.8 engine has p1188 and p0170 engind code replaced few hoses, looks like the o2's have been replaced, has black smoke, tryed a new maf meter still runs rough at cold idle and cleaned air control valve after cleaning air valve still idles rough when cold but not as long any help on this car will help,
SOURCE: Help 10 codes on 323i!
These codes will have to be cleared and the car driven through a drive cycle, maybe a couple of times, is the check engine light off? Also you should check your MAF sensor it may need to be cleaned or replaced and makes sure there are no holes in your intake tubing. Hope this helps, let me know.
SOURCE: p1188 and p0170 on bmw z3 roadster
p1188 is fuel pump and p0170 is same problem but with air flow sounds like drawing in too much air and not much fuel. pump might be shot.
hope this helps
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the mas air flow was replaced and no differant the codes come back on after 2 drive cycles
the intake tubing was smoked also no leaks
what should the front o2 sensor read at idle , the intake was smoked again no leaks the fuel filter was replaced , the idle air control valve was replaced would not move still idles bad when cold, air cleaner was cleaned again need to know what 02 is supose to read at idle when cold and tps reading
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