ground ?
ok if i ground the ecu nothing happens at all no light when ignition is turned on no fuel pressure, etc. but when it's not grounded those functions do occur, but i get codes 4 and 20
are u sure u have a good ground?? use some sandpaper or something and clean down to the bare metal, then try it again.
code 4 is crank position sensor
20 is electrical load detector
code 4 is crank position sensor
20 is electrical load detector
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