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Old 01-03-2008, 01:44 AM   #1 (permalink)
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Date registered: Mar 2006
Posts: 19
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Wired an Apexi Fuel/Air Controller to my 97 E320

This is awesome, it has a voltage multiplier that tricks the MAF into sending a higher airflow reading into the ECU and that makes it send more fuel. Ive heard the AFR on the e320 is pretty lean at like 14 sumthin hopefully this will help. It was cool checking out the ECU wires and stuff. Im 17 so doin this kinda stuff is new to me but it was amazing i learned so much in terms of how the car is wired and what wires to what.

The point of the this is to go ahead and get the electronics out of the way when i turbo charge this car.

I will disconnect all the wires from the connector and run them through the firewall tommorrow assuming theres a hole big enough somewhere.

Its a little messy and ive got some loose ends to cover but it works

Apexi Unit, cant wait to play with this thing

Heres a bonus, no check engine light even after 5 minutes of various RPM testing
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Old 01-03-2008, 01:44 PM   #2 (permalink)
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Date registered: Mar 2005
Vehicle: '01-E320 & 02-ST2
Location: Adrift on an island...
Posts: 7,846
Hey, Pro60, I'm glad you had fun with your project. Please take a moment (after you finish pulling wires through your firewall) to complete your BW profile re: vehicle and location, that can be useful going forward.

AFR in the range of 13.5-14.5 (depending on the engine) is about right for normal cruising, if you go too rich or too lean you'll trash your O2 sensors and Cats as well (aside from the obvious violations of federal and perhaps state emission laws).

Take care and enjoy the ride,
Greg
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