i did a swap from a '86 305 tpi to a '89 350 tpi i bought a '89 formula wiring harness complete for the same year setup but dont know if the harness was equipped for the power steering switch could i just change the lines to the regular ones with out the switch or do i need to keep the switch....i might have other questions related to this swap but ill go 1 question at a time please help

 

The electrical connector on the P/S system is a sensor that tells the ECM that there's 'force' being applied to the P/S, thus the pump is using 'power' from the belt system, which can lower the engine RPM - so that sensor is so the ECM knows and can adjust engine idle up a tad to compensate. The A/C system kinda does the same - the ECM will adjust idle up a tad to compensate. So it won't hurt anything to run with it not connected, as long as your car doesn't die on you during a hard turn.

 

i dont want my car dying on a hard turn if i folow the sensor by the way i went to the junkyard found the conector and ripped it out so if my harness has it i should use it and if not what do i do then

 

If the new harness didn't come with one, I wouldn't worry about it. That sensor was needed to help the lower power engines cope with the stress of the power steering pump. I don't even have the provision to do it on my LT1 and its fine.

 

alright i will have a look at my harness in the morning because this is buging me not knowing if it has it or not and if it will cause a driveability issue

 

My '91 L98 doesn't have that switch either.

 

alright thanks for the help thats one problem solved and a couple more to go ill just use my stock steering pump lines with out the switch since they are still connected on the steering grear box but thanks for reals to all of u who helped