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JFairman JFairman is offline
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,128
I think just "cracking the sensor plate" to turn the pumps on would still shoot some fuel out the injectors. Thats about whats happening when you are turning the car over on the starter motor to start it.
It's easy to just reach around to the back of the CIS assembly and unplug the blue plug next to the sensor plate with the ignition on and motor off. Doing that wil turn on the fuel pumps.

Your question about checking the control pressures with motor on or off is a very good one. The voltage in the entire car will be somewhere around 1 to 1.75 volts higher with the motor running and it seems that would speed up the fuel pumps raising fuel pressure.

Then again I havn't checked that, but I will one of these days...
Old 07-31-2008, 04:58 PM
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