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Old 08-23-2013, 10:31 PM
97 SL320 97 SL320 is offline
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Join Date: Jan 2012
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Quote:
Originally Posted by thayer View Post
how do you kill power to the injectors?
The injectors on your car have solenoid coils. I'd have to see a wiring diagram but usually one wire goes to +12V and the other to the engine computer. The computer grounds this wire to fire the injector. If you shut off the +12V they won't spray fuel. The computer opens the ground to shut off the fuel, doing it manually is easier on the + 12 V side because all of the injectors are tied together on that side.

Quote:
Originally Posted by thayer View Post
I'm assuming close throttle is to let completely off the pedal.
Sort of closed, you will want a smooth transition between fuel off and fuel on.
Quote:
Originally Posted by thayer View Post
I never shut down the engine, just let it idle.
This keeps the lube circuit going but the planetaries are still spinning wildly and will fail. Think about driving 65 MPH in first gear.

Quote:
Originally Posted by thayer View Post
By the way, the engine is getting additional fuel in the space in the pedal without friction. I ended up going much faster than when I was in neutral.
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