Ok, just found another difference. The IP's are different.

On the original 85 IP, there is this "sensor" on the back side of it with a round 3 plug coming off it,



It plugs into this on the firewall,



On the 84 SD IP there is nothing...



What is it? what's it do? and do I need it? If I need it, the only way I see of getting it would be to swap the IP's... There are no mounting holes in the 84's to attach it.

Attached Thumbnails

     

So, remove it and the associated stuff?

That is the Rack Position Sensor. the box on the back side of the IP.

It sends a signal to the EGR Black Box behind the Passenger kick panel.

It is all part of the smog emissions on the 85. I thought the 84 had it also, maybe late 84`s had it.


In your other thread you asked about the FW sensor which sends a signal to the black box. this is just another part of the puzzle.

I would say it can be ignored with out any problems, unless you are going to keep the EGR and all the emissions stuff hooked up.

I do know the 85 pump with the RPS can be used in another vehicle w/o the black box. the pumps work the same. the FSM explains it pretty good how it works as I remember.

Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Cool! thanks