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#1
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Installing a MPGuino to help save fuel on my E320
I am ready to install a MPGuino unit see MPGuino - EcoModder. One of the requirements is to input the VSS/mile into the MPGuino. I also need to know where to connect into the VSS and also into one of the injectors to get a pulse signal. I need to know which wire has the 0 voltage. Or, is there an output connector with all these signals available (my car has a 16pin connector above the battery can this be used?). Also how do I get form the engine bay through the firewall into the cabin with the cable to connect the MPGuino unit. I believe the injectors for this car are Bosch 0 280 155 209 units with 197.6cc/min is this correct?
Vehicle E320 1995 Last edited by whunter; 01-22-2009 at 10:41 AM. Reason: Added year model |
#2
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Whats the point? Why not just pay attention to the economy gauge?
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#3
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I got a ScanGaugeII and I am very happy. My coworker bought one also and he likes it very much. It plugs in super easy, into the OBDII connector. That is what I would recommend.
However, the injector signal will be available from the ECU which I think is inside the firewall, but I am not positive.
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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine) 1988 F150 144,000 miles (leaks all the colors of the rainbow) Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra |
#4
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grommets through firewall
I don't have the electrical answer, but there are three or more rubber grommets through the firewall into the interior with unused holes that you just cut off the tip to use.
"What's the point?" More feedback to save gas and reduce his carbon footprint. "I got a ScanGaugeII and I am very happy. My coworker bought one also and he likes it very much. It plugs in super easy, into the OBDII connector." A 95 E320 does not have OBDII?? |
#5
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95 = obdi not obdii
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
#6
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Get a subscription to alldatadiy.com and you will have more data & wiring diagrams than you will ever need.
But seriously, does your built-in mileage gauge not work?
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"It's not about how fast you can go, but how well you can go fast." Bob in Richmond '97 S320 (LWB), Ruby Red Metallic, 73k miles '97 S420V, Smoke Silver Metallic, 155k miles |
#7
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My '95 E320 SE doesn't have a mileage gauge like my old '87 300E did. Perhaps his doesn't either?
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#8
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The ECu is in that area behind the battery. I think there's a plastic cover above it.
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Prost! |
#9
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The '87 300E had a vacuum gauge, not a mileage gauge.
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Gone to the dark side - Jeff |
#10
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My E320 does not have a Vacuum guage or a mileage guage. OBDII only came out in 1996 for North American cars from what I have read. Part of the reason I bought the MPGuino kit was for interest and economy. I learnt much from building the kit supplied by Fundamental Logic. The theory behind the electronis board and the components are explained extermely well in lecture notes supplied by SparkFun Electronics - News
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#11
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Using MPGuino in a old Mercedes (pre 1996).
Quote:
I have a Mercedes 300E and a MPGuino, which I want to install on it. To get the VSS signal is rather easy, but not the injection signal. We have the same problem. Let us share our experience to beat this difficulty. My car has a "economy" gauge, which provides an idea of economy based on the admission vaccum generated by the engine. However, this variable isn´t always a sign of efficiency or ineficiency, something you car read in an article in Auto Speed of Australia. They explain that very clear. Second, even if that gauge may work sometimes, the visual info it gives is too course, one cannot assess the impact of a single mod on fuel yield in the car based on this gauge. We need more precise information over some, say, 100 km to be sure. Then comes MPGuino to solve it. Then, we need to spot a signal on the ignition system of our cars to be used in the MPGuino device. Do you have any ideas? I have the circuits but they are difficult to me to understand, first because english is not my first language, and second, because mechanics and electronics are not my first profession either. I am a forester. Shall we continue? What have you discovered so far? Looking forward to hear you, OldBeaver Note: Can you tell me what is a "trackback"? |
#12
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Quote:
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Remember, Safety Third! '99 E300 Turbodiesel, '82 300TD, 1996 12V Cummins Turbo, '94 Neoplan - Detroit 6V92TA |
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