View The Full Version : problem smell unburned gasoline bmw 325i after replacing cam shaft
tuommo89
17-06-2014, 15:28
hi all, I have a problem, after the change of cams (284?/272? the shooting starts at middle rpm , 3000/3400giri say) my bmw e30 325i 170cv 0261200382, the smell of benza unburned and does not hold most of the minimum ( grumbles too)
as I ruler to adjust the map? why? I would also like to get him a nice mapping to adjust with the cam new, thanks
I also wanted to know if it was possible to eliminate the lambda probe from the map
I attach the file
tuommo89
18-06-2014, 14:56
anyone? =(
hftdelta
20-06-2014, 21:15
If you have the smell of gasoline after you have changed the cams, recheck the timing, maybe with a protractor and comparators
tuommo89
20-06-2014, 21:37
then not ? the problem of the map, or better to say, you can't solve in other ways besides lowering the gasoline from the map at low rpm.....
making a nice map you can retrieve qlks with the map - cam - manifolds, stainless steel filter and sports?
hftdelta
20-06-2014, 22:08
With the map ecu, exhaust and filter you can get nice results, and the problem is that you feel buzza of gasoline after you have changed the cams, and this is not going well, you can reduce the gas to a minimum, but you would have 2 problems: 1 does not solve the problem correctly and if then maps the centralna addition to increasing the performance, increases the problems. 2 would you like to lean the ratio specchiometrico, with the potential for problems, even serious ( piston holed heads, burned, etc.....). Remember that smagrendo risks of raising too much the temperature in the game. I first sistemerei all ****llo meccanic, and only with sure 1000% that everything is ok, I would go play ecu
macinische90
20-06-2014, 22:16
with the map ecu, exhaust and filter you can get nice results, and the problem is that you feel buzza of gasoline after you have changed the cams, and this is not going well, you can reduce the gas to a minimum, but you would have 2 problems: 1 does not solve the problem correctly and if then maps the centralna addition to increasing the performance, increases the problems. 2 would you like to lean the ratio specchiometrico, with the potential for problems, even serious ( piston holed heads, burned, etc.....). Remember that smagrendo risks of raising too much the temperature in the game. I first sistemerei all ****llo meccanic, and only with sure 1000% that everything is ok, I would go play ecu
report specchiometrico??????? Ahahahaahhahaahahahah
hftdelta
20-06-2014, 22:36
report specchiometrico??????? Ahahahaahhahaahahahah
Scream of fear or because they did not know what to
tuommo89
20-06-2014, 22:53
and how do I do it? in mechanical does it quietly or we want a workshop, beautiful kitchen?
tuommo89
20-06-2014, 22:54
and anyway was not stoichiometric?
cinqueturbo
21-06-2014, 02:08
But this range, with these intersections from 284?/272? for what use is that?
the cio? road use slalom climb or trail? where lai found the supplier for that use tell recommended?
give us some info in pi?..
not that we are always with these 325i between your hands..;)
tuommo89
21-06-2014, 02:34
Then ? for street use, let's say, makes it the most? brutal thrust from the 3300/3400 rpm up top, under do not need Xk car having a 2500cc has already? a good pair
cinqueturbo
21-06-2014, 02:39
Then ? for street use, let's say, makes it the most? brutal thrust from the 3300/3400 rpm up top, under do not need Xk car having a 2500cc has already? a good pair
Ok..
with that driver the open?
why? I had to manually select..
B380_425?
tuommo89
21-06-2014, 02:45
It is with that, I'm tt equal say to the driver, if I'm not mistaken
cinqueturbo
21-06-2014, 02:53
It is with that, I'm tt equal say to the driver, if I'm not mistaken
Ok..Pity that Winols does not help with this file, and not or the damos ..
however, with tita to the maps for injection to a minimum
to made some test?
smagrendo as you thought you or touching the advances?
tuommo89
22-06-2014, 01:18
no, I have not tried, I'm not straight edge so much =(
the lambda probe can be ruled out from the map?
rdponline
22-06-2014, 08:27
before starting to map trying to solve the problem, you need to recheck good timing, mounts protractor and comparators, the first stages well, well, and then do the map, also check the rim that is what you have written on a slip of paper that comes from trees. If the 2.5 you have 2 vanos and if the 3500 you keep only 1, that engine please?
cinqueturbo
22-06-2014, 10:45
no, I have not tried, I'm not straight edge so much =(
the lambda probe can be ruled out from the map?
Then do as tanno recommended,
review phase,
you have to be certain of the work otherwise brancoli in the dark..
why? do you want to exclude the lambda?
and one thing that is counter productive..
and you manage the fuel mixture that you imposed..
tuommo89
22-06-2014, 12:01
Why? who sold me the engine told me k, the engine was catalytic, but had not pi? put the probe, the Xk was broken and seeing k-nn c were no differences l has more? the shed, now I think k might be ank you the problem, now with the cams that are new, anyway ? a 2500 6 cylinders
but the 2500 170cv, it seems to me to be a 2-valve per cylinder or not?the engine management uses a pressure sensor in the manifold?in this case, with that profile scombini not
just the fuel mixture, practically having less depression at idle and low engine load, the control unit detects a load more? high, and then d? pi? benza.
tuommo89
22-06-2014, 13:27
Then I place the probe and put it on stage? And then the game of the ecu?
tuommo89
22-06-2014, 13:29
The probe ? in the tube where it is linked to the 3x2 manifolds, you ? a 12valvole
once you have checked the phase of the cam you can find someone who has an emulator in real time and map it on to the roller with the player stoichiometric,
this way you get a good result saving a lot of time.
tuommo89
22-06-2014, 15:07
But the lambda sensor, I advice you to restore it to its place? That is, the buy? The phase of the cam I find it in the package of the cam?
overbooster
22-06-2014, 15:32
x me you're a p? too "out of phase" x mumbling so low even spin 12,000 rpm!!! what is the value of depression you have? redo phase, and place the probe, you will manage? only then after when you remap a
tuommo89
22-06-2014, 15:37
Ok Ok, tomorrow, or the. Tuesday? I do the step ? I commend the probe, then it will update, thanks to tt
overbooster
22-06-2014, 23:04
nothing we are here x grow and help one another
for precise timing, I advise you to make it using the data of the new cams for the azata in the intersection.....
of course, both of the valves....just so you are absolutely sure that the cams are the same perfectly...
you have mounted a pulley distribution adjustable??
as you rightly have said if your ecu using the speed/density on the basis of the map of course, by mounting the cam the more thrust you have less depression in the manifolds, and then the ecu detects more load on the engine....
I think what your motronic is provided with the maf and the resulting management strategy....if ? so your maf reads more air to the minimum, and then the ecu greases gasoline...you made a log of the vital parameters before and after fitting cams?
I forgot your maf as well as the entire engine management must be a L-jetronic(or its derivatives) then the maf ? type "scoop" which, among other things, you can also adjust...open the plastic cover above the maf, and you'll find a potentiometer with its "needle" below this you will find a kind of toothed wheel....this wheel acting on the spring of the headstock adjusting adjust the position of the potentiometer, and then tell the ecu how much air it is sucking in your engine and then the ecu adjusts the fuel...
don't mess with the mass air flow sensor, or maf, your problem is not ? unit, but the cams exactly timing the cams.
reposition the cams in such a way that it produces a little less than the junction valves, (delays 4-6 ? the aspiration , and in anticipation of 4-6? the exhaust), and you will see that your minimum goes straight to the place.
and without touching the mappings it the mass air flow sensor you will be out of the mess, with a minimum of the place, the smell disappeared, without popping, and you guide it with satisfaction.
the problem ? he has only one cam for intake and exhaust then or anticipates or delays everything.
then you can? do little, but to put all of the camshaft in the advance of about 6? pu? help, not solve.
the problem remain the cam profile is too large.
effective help can? come from increase the rpm of a minimum of 100 - 200 rpm/1', but it depends on how ? thought the idle speed regulator, if ? with butterfly electronics.
the mapping is very hard to remedy to a problem of the cams wrong.
let me explain: these cams will be good for performance, but are not adeguaste for those in need of to have a smooth idle. are the cams from the track.
Try to decrease the advances of up to 3000 rpm
Analyzes the exhaust gas in the range between the minimum-3000 rpm reading the lambda factor, and adjusts the injection time
As riquadra the high increases the injection time and the advances, increases in the advances of power of 2?-3?Max
but with what logic are you saying these things?
what makes you think that the lambda is not correct already? now?
the mass air flow sensor what we make?
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