924Board.org

philk · Joined: 05 Apr 2012 Posts: 33 Location: Austin, TX

JoeC -
that's my plan at least the jumper cable part...I will try the solenoid tip too now..

still though those cables need to come out..insulation is cracked and pieces are off...

are the speed and reference sensors the same type of sensor ..ie. 2 of those sensors are used...and also plugs that they connect to ... I can't find a reference for them..where to get new ones if needed...I guess they plug into the DME..
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1987 924S project car (aka clunker)

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

yes they are the same part, yes they send their information to the DME plug, pins 8 and 27 speed, 25 and 26 refrence. Pinouts for dme plug here

http://www.frwilk.com/the944/connector.htm

You can get the sensors lots of places, a post from Rasta stands out in my mind,

http://www.924board.org/viewtopic.php?t=35471
_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold

philk · Joined: 05 Apr 2012 Posts: 33 Location: Austin, TX

Joe-C -
thanks, I have found sources for the sensors, and the DME page you've linked, but I'm more concerned about the connector and wire going to the DME not coming from the sensor...they're frail looking too..

I found references to "Bosch OEM Miscellaneous Electrical; Terminal Repair Kit For 2 Prong Bosch Injector Type Plug" but I thought,. from the wiring diagram that the sensor connectors are 3 prong..plus I probably need to replace the entire wire path to be safe

all the wires are old and some have been chewed on by rodents..

AutohausAZ had the cheapest sensors by far...so thanks for sending that along..previous cheapest was in the $90s
_________________
1987 924S project car (aka clunker)

philk · Joined: 05 Apr 2012 Posts: 33 Location: Austin, TX

Joe-C - did the jumper cables to the starter, and it started...it did have at least one non-crank, but I think that's cause I didn't have the best connectons with the jumpers..

but it did start several times..

there are no coverings on the solenoid terminals..that doesn't sound very safe..need to get some boots for them..
_________________
1987 924S project car (aka clunker)

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

philk · Joined: 05 Apr 2012 Posts: 33 Location: Austin, TX

Joe-C - thanks for the advice..I'll stick to battery cables for the time being..any advice on how to get at the battery ground connection at the rear of the engine?...there's a hose I need to remove and the sensor connections
to get to it from above...that's probably the best approach no?
_________________
1987 924S project car (aka clunker)

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC

philk · Joined: 05 Apr 2012 Posts: 33 Location: Austin, TX

edredas - question was for anyone...

thanks for the picture..I knew the location of the connection..I can see it sort of...my plan of attack was to remove the bracket holding the 2 sensor plug connections above the spot, and then trying to remove the hose..that should give me enough access to get at the nut holding the ground cable...

don't want to disconnect the sensor plugs cause I think they'll fall apart ..not quite ready to remove the head, but might need to ll
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1987 924S project car (aka clunker)

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

I dont remember just what I disconnected to clean my grounds, but I do remember that I did it without removing the intake manifold. The rubber hose is to your heater, and the plastic valve on it controls flow to the heater core. If at any point you feel like disconnecting the cable that goes to the valve just keep in mind it can be a pain in the ass to get clipped back on.
_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold

philk · Joined: 05 Apr 2012 Posts: 33 Location: Austin, TX

Joe-C - I planned on just removing the hose and moving it out of the way..don't really want to disconnect more that I need to...that and the bracket holding the sensors..
_________________
1987 924S project car (aka clunker)

philk · Joined: 05 Apr 2012 Posts: 33 Location: Austin, TX

follow up on my starting problem - went under to remove battery cable off the starter, and found that the nut holding the battery and altermator wires to the starter was loose...way loose ...tightened it up and it starts now...so I'm gonna go slow with the cable replacements...but, the issue of the shorted HD light still remains ... do I just replace and hope for the best or trouble shoot? THen how to proceed...measure votages on the connectors?
_________________
1987 924S project car (aka clunker)

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

I would say take your headlight switch out and take it apart. It is not that hard to do, you can get to the release tabs for the switch by reaching up under the dash. It should pop out fron behind and drop down so you can unplug it from the harness if I remember right. The inside of the switch has sliding type contacts that wear over time. If your switch is stuck you will just have to take it out and take it apart and see wtf.
_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold

philk · Joined: 05 Apr 2012 Posts: 33 Location: Austin, TX

JoeC -
Did that couple weeks ago and it looks as if something in the switch shorted...plastic is melted...the HD motor relay seems okay - took it out and applied 12V to it and it seems to switch properly..the fuses are okay....bought a new switch but am reluctant to put it in ...could the short just be the contacts loosening and shorting together in the switch or is that unlikely?
_________________
1987 924S project car (aka clunker)

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC

The switch only has positive wires. The grounds are at the headlights. If the switch arced and melted, there is something wrong somewhere and it will only happen again.
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'84 944 -White, Brown interior
'84 944 -Red, Automatic
'86 944 -Garnet, Fully loaded, Koni suspension
'87 924S -Red, 300hp 951 swap
'87 924S -Red, Project Car
'88 924S -Red, Daily Driver

philk · Joined: 05 Apr 2012 Posts: 33 Location: Austin, TX

edredas , thanks -- that's interesting...if the wires carry enough current to melt the plastic you'd think the fuse would blow first wouldn't you? it'd have to be an amperage higher than normal carrying capability, to heat up the metal contacts in the switch they're decent sized..guess I have some investigatin' to do..
_________________
1987 924S project car (aka clunker)