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#1
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how to upgrade and or disable " factory " air box/computer ?????
Simple question " hopefully " i want to " upgrade " my 1986 300sdl to the custom cold air intake ... BUT ... on the " stock " air box it has connections for computer i assume .... how do i disable / bypass it .... ( if necessary ) or does it matter ????
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#2
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"Computer" is a misnomer. The EGR box isn't smart enough to be called a "computer." The air box has a flap with a potentiometer that tells EGR how much air the engine is sucking in. If you have EGR defeated (and even if you have not) it is unlikely to make a difference if you remove it. You cannot completely remove all of the EGR electronics because the tachometer signal runs through the electronics.
A number of W124/OM603 listers have removed the air box and replaced it with a pipe. This action alone reduces the car's weight by more than ten pounds. Whether the plumbing in the SDL is the same I do not know. Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 Last edited by Jeremy5848; 11-30-2012 at 01:44 PM. Reason: typo |
#3
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it looks the same to me...
I'll take pictures of the two setups tomorrow... side by side... yeah, I've got an SDL now...
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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! |
#4
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Quote:
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2004 F150 4.6L -My Daily 2007 Volvo XC70 -Wife's Daily 1998 Ford F150 -Rear ended 1989 J-spec 420SEL -passed onto its new keeper 1982 BMW 733i -fixed and traded for the 420SEL 2003 Volvo V70 5 Speed -scrapped 1997 E290 Turbo Diesel Wagon -traded for above 1992 BMW 525i -traded in 1990 Silver 300TE -hated the M103 1985 Grey 380SE Diesel Conversion, 2.47 rear end, ABS -Sold, really should have kept this one 1979 Silver 300D "The Silver Slug" -Sold |
#5
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I compared the two, and while they are not the same, they are close. similar bypass methods should work.
the SDL "computer" sits at an angle, and it's longer than the 124 box. but it appears to be the same size fittings.
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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! |
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