|
|
|
#1
|
|||
|
|||
w210 td not boosting
my 99 e300 td
started yesterday on the way home from work noticed it didnt pull and needed more revs to get on the hwy. has power and runs good but doesnt have that extra juice the turbo added. done/checked: -no codes -ic piping is good and rubber is new. -turbo spins freely -new fuel filter -fresh oil -exhaust seems to not be plugged any ideas?
__________________
1993 e300 1995 e320 1994 e320 2006 s500 4matic 2004 Jeep wj overland 2001 Ducati 748 2004 Honda shadow aero |
#2
|
||||
|
||||
does the 99 have more than one fuel filter?
have you tried driving with the fuel cap off?
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#3
|
|||
|
|||
You didnt mention this on tb. Are you getting any boost at all? Id check your egr.
|
#4
|
||||
|
||||
As above, the EGR might be dirty, or a bad MAF ( but this will throw a code) or a Waste gate transducer that is leaking or bad ( but this should give some code too)
Olivier
__________________
E300TD year 2000. RUSTY SOLD cost a fortune to maintain on the road but run well on WVO Second Merc died due to corrosion ( NOT rust) How can mercedes get away with that for so long? Third lasted a month then went away... Fourth now... Corroded too... |
#5
|
|||
|
|||
take the gas cap off completely? i'l give it a try..there are 2 fuel filters..the spin on was changed 10k miles ago..the other one hasnt been changed in 50k mile but i checked it and the screen was clean.
Quote:
i was thinking the egr or wastegate too. still zero codes..no unusual smoke or roughness in the engine(runs and drives as a perfect running n/a). just no boost pushing the engine. i'll take a closer look at things this weekend when i have more time.
__________________
1993 e300 1995 e320 1994 e320 2006 s500 4matic 2004 Jeep wj overland 2001 Ducati 748 2004 Honda shadow aero |
#6
|
|||
|
|||
Low quality Bakersfield air? Haha. Lemme know what you find.
__________________
Jesse. '80 300sd modded everything begging for more fuel. '98 f-250 psd, d60 elocker front, intake, exhaust, dp tuner F5 etc.. '70 f-250 '83 242 Volvo project '66 volvo amazon '10 fuso FE-180 service truck, welder, compressor, 3500lb crane, oil tanks, etc... |
#7
|
||||
|
||||
Make sure the rubber line did not crack or come loose from the MAP sensor. This will cause the exact symptoms you're experiencing.
__________________
-Evan Benz Fleet: 1968 UNIMOG 404.114 1998 E300 2008 E63 Non-Benz Fleet: 1992 Aerostar 1993 MR2 2000 F250 |
#8
|
|||
|
|||
map sensor? is that on the intake manifold?
__________________
1993 e300 1995 e320 1994 e320 2006 s500 4matic 2004 Jeep wj overland 2001 Ducati 748 2004 Honda shadow aero |
#9
|
|||
|
|||
the map sensor is near the firewall, engine side, foreward the brake master. it has one electrical connection and a rubber hose running from the map to the egr under the intake. check the rubber hose to security and cracks as mentioned above. there is a handy diagram on the passenger side ecu "weather box" with the components and the locations. check all of the hose connections at the egr transducer, too. if the transducer's vacuum supply is disconnected you'll have boost issues.
|
#10
|
|||
|
|||
Same symptoms on my 99, a vacuum line had comeoff. make sure something didn't come loose.
|
#11
|
|||
|
|||
ok so i drove with the gas cap off, checked the map line and it seemed ok. was attached and no cracks. i pressure checked the vac line and it held pressure. theres a auto parts down the street so i replaced the line anyway. i also cleaned the maf for ****s and giggles. everything seems unchanged after checking the maf sensor.
__________________
1993 e300 1995 e320 1994 e320 2006 s500 4matic 2004 Jeep wj overland 2001 Ducati 748 2004 Honda shadow aero |
#12
|
||||
|
||||
Check for vacuum at the wastegate. There should be full vacuum (or close to) at idle. If you don't have vacuum there, try swapping the wastegate and EGR transducers (they're the same) and see if you either get a code or it starts working again.
There are two paths to check on in this situation: One, the turbo actually isn't boosting and two, the ECU isn't seeing the boost that's there and not fueling for it. For emissions/anti-smoke purposes, the ECU will only fuel the engine beyond a certain extent until it sees about +3# of boost.
__________________
-Evan Benz Fleet: 1968 UNIMOG 404.114 1998 E300 2008 E63 Non-Benz Fleet: 1992 Aerostar 1993 MR2 2000 F250 |
#13
|
|||
|
|||
Quote:
__________________
1993 e300 1995 e320 1994 e320 2006 s500 4matic 2004 Jeep wj overland 2001 Ducati 748 2004 Honda shadow aero Last edited by speednjay; 09-01-2011 at 08:09 PM. |
#14
|
||||
|
||||
Probably P0243, relating to the interaction between the MAF and the EGR. That's starting to lean in the direction of a bad transducer.
Did you get your boost back after the swap?
__________________
-Evan Benz Fleet: 1968 UNIMOG 404.114 1998 E300 2008 E63 Non-Benz Fleet: 1992 Aerostar 1993 MR2 2000 F250 |
#15
|
|||
|
|||
Quote:
i check the wastegate rod and it move freely then checked it with vacuum, it seems to work as normal. i think my egr might be plugged causing the boost sensor to get no readings.
__________________
1993 e300 1995 e320 1994 e320 2006 s500 4matic 2004 Jeep wj overland 2001 Ducati 748 2004 Honda shadow aero Last edited by speednjay; 09-03-2011 at 12:40 AM. |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|