om602.982 (290tdt) black smoke, emission problem
om602.982 (290tdt) black smoke, emission problem
rotary pump, drive by wire.
he cant pass the emission test, to much black smoke, 0,8 and the limits is 0.2.
while testing they floor the pedal enough to make the engine hit max rpm and then releases trottle..
steps tried.
driving like a madman before the test didnt improve the value much,
what steps can be taken to reduce the amount of black smoke, mixture in fuel? removal of lines to alda? (would the ECU go bananas?)
thanx in advance
---------------------------------
daily driver
w115 240d 72hp 3.07 rearend
w123 om602 turbo 200whp 7.5mm pump fivespeed 3.07 rearend
+ a few more.
mbturbo.com
swampmonkey
04-24-2013, 12:23 PM #1Hey there, a friend have one of these 2.9 liter 5 cylinder engines sitting in his w210..
rotary pump, drive by wire.
he cant pass the emission test, to much black smoke, 0,8 and the limits is 0.2.
while testing they floor the pedal enough to make the engine hit max rpm and then releases trottle..
steps tried.
driving like a madman before the test didnt improve the value much,
what steps can be taken to reduce the amount of black smoke, mixture in fuel? removal of lines to alda? (would the ECU go bananas?)
thanx in advance
---------------------------------
daily driver
w115 240d 72hp 3.07 rearend
w123 om602 turbo 200whp 7.5mm pump fivespeed 3.07 rearend
+ a few more.
mbturbo.com
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
04-24-2013, 12:34 PM #2Adjust a ton of slop in to the throttle linkage so it only get like 1/4 throttle when it floored? it will be a complete dog
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
Drive by wire the pump won't have an ALDA and there is very little you can do adjustment wise. First place to start assuming the engine isn't a dog would be to get the injectors serviced. You could try some injector cleaner in the fuel but it sounds to me like at least 1 injector isn't happy.
If the engine/pump is fiddled with to pass try and pass the test it will still fail because they will know it isn't revving properly. Apart from that its drive by wire so nothing to mess with.
Drive by wire the pump won't have an ALDA and there is very little you can do adjustment wise. First place to start assuming the engine isn't a dog would be to get the injectors serviced. You could try some injector cleaner in the fuel but it sounds to me like at least 1 injector isn't happy.
putting something under the pedal only giving it 2/3 could work if they doesnt notice, but i think they will.
injector cleaner it is then, what would be an approximate price for a new set of injectors if it doesnt work?
---------------------------------
daily driver
w115 240d 72hp 3.07 rearend
w123 om602 turbo 200whp 7.5mm pump fivespeed 3.07 rearend
+ a few more.
mbturbo.com
swampmonkey
04-24-2013, 01:31 PM #5seems to be an injector then.
putting something under the pedal only giving it 2/3 could work if they doesnt notice, but i think they will.
injector cleaner it is then, what would be an approximate price for a new set of injectors if it doesnt work?
---------------------------------
daily driver
w115 240d 72hp 3.07 rearend
w123 om602 turbo 200whp 7.5mm pump fivespeed 3.07 rearend
+ a few more.
mbturbo.com
You might want to give the engine a full service as well including valve adjustment with it being a 602. If it hasn't been done in a while you never know, it might do the trick.
If you dont have a local shop give http://www.superturbodiesel.com/std/user-1986.html a shout. You won't need new injectors just the old ones rebuilt.
You might want to give the engine a full service as well including valve adjustment with it being a 602. If it hasn't been done in a while you never know, it might do the trick.
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