Replaced bad solenoid still won't pull in

[cmar143]

Working on a friend's 98 ds and solenoid was only getting a variance of voltage across large posts so I changed solenoid. Now it still won't pull in. When I measure volts across 2 small posts I don't get any voltage when I step on the gas however I get 50v when I put one lead to B- and the other to small post and step on gas. Also what I find weird is there is 50v across 2 large posts with gas pedal up and resistor disconnected. I tried 2 different solenoids to rule out a bad one out of the box. Need some help on this one

[Sergio]

It looks like the OBC is not providing the negative side of the solenoid activation circuit.

Disconnect the yellow wire from the small solenoid post and run a new wire from that solenoid post directly to B-.

[cmar143]

Thanks sergio will try today. If that does work I assume that obc will have to be replaced or bypassed with an automatic charger?

[cmar143]

Running b- directly to solenoid worked so I a, going to get automatic charger tomorrow. I plan on cutting black wire coming from charging outlet and crimping a ring terminal on it and running to b-. My only question is does yellow wire on small solenoid post get taped off or stay on along with jumper from b-? I am assuming ground to obc no longer matters.

[Sergio]

You can completely remove the OBC, but you do need a wire from the solenoid small post where the yellow wire was connected to B-.

Check with Scottyb for a DPI charger.