hatzie
I'm Awesome
I thought the Hayes 4W ABS started in 1995, didn't think they offered anything other than RWAL before 1995.IS there any reason you can't just manually activate the pump motor by putting 12v to the pump motor pwr pin and ground the GRN pin on the Kelsey Hayes unit for 92-94?
There are a bunch of little hydraulic pumps in the 4W ABS module. They have to be operated in sequence.