Throttle Linkage Pic or Diagram.

[Arachnoid86]

Hey Y'all! Does anyone have or can point me to a pic or diagram of how the throttle linkage rods are connected from the firewall to the throttle position sensor for a 2L Bosch 86 Spider Veloce? And one other question, where does the negative (black) battery cable connect under the hood??

Thanks for your time...

[Tifosi]

Quote:

Originally Posted by Arachnoid86 Hey Y'all! Does anyone have or can point me to a pic or diagram of how the throttle linkage rods are connected from the firewall to the throttle position sensor for a 2L Bosch 86 Spider Veloce?

[ghnl]

Try these threads: 1987 Spider Throttle

Resisting Gas Pedal

Stuck accelerator

And, to get technical, your Spider has a Throttle Position Switch, not Sensor...

As Tifosi says, the negative battery cable attaches to the trunk floor near the battery. There is (or is supposed to be) a ground strap from the bellhousing to the body in the transmission tunnel.

[Arachnoid86]

Thanks for the quick response Tifosi. From your advice, I have successfully installed the throttle linkage. In reference to my second question about the battery cable, I've got a thick black cable, looks about like a 10 gauge or thicker that runs from the truck area along the bottom of the passenger side of the car then it routes up by the bell housing and then up along the firewall and reaches to just under the plenum. Is this supposed to connect to the starter solenoid main?
Thanks again for your time.

Oh yea, the reason I had taken the throttle linkage out is because I was having issues with those sticky firewall rubber bushings for the accelerator rod feed through. By un-welding then re-welding an end on that firewall rod I was able to replace those rubber bushings with two skate board wheel bearings I special order for the diameter of that rod. Don't know if they work yet but damn the action is smooth right now......

[Tifosi]

Quote:

Originally Posted by Arachnoid86 I've got a thick black cable, looks about like a 10 gauge or thicker that runs from the truck area along the bottom of the passenger side of the car then it routes up by the bell housing and then up along the firewall and reaches to just under the plenum. Is this supposed to connect to the starter solenoid main?

[Arachnoid86]

Mucho Thanks Tifosi, I was hoping I could get one last question answered and you seem to have a great intimate knowledge of the Alfa autos. I've got a red with a black stripe wire with a female spade connector on the end that originates from the passenger side firewall and extends to about half way down the block. Any ideas where this might connect?

[Tifosi]

Quote:

Originally Posted by Arachnoid86 I've got a red with a black stripe wire with a female spade connector on the end that originates from the passenger side firewall and extends to about half way down the block. Any ideas where this might connect?

[Arachnoid86]

Thanks again for the quick reply Tifosi. I found the Starter Solenoid ignition signal wire by measuring the voltage during the turning of the key. But I think you're onto something about the oil sending unit though. I think I have only two female spade connectors that are not in a plastic connector shell on that side of the engine. I'm going to try and find the oil sending unit to make sure it either has a wire on it or needs this one. This one did measure about 8 - 9 volts as soon as the ignition was turned to the on position. Thanks for sharing your knowledge.

[Tifosi]

Aha!

According to the 'P4.pdf' attachment in this post by papajam, one of the wires that goes to the oil pressure gauge is indeed red with a black trace. (I realize the schematic is for a late S3 w/monopod, but that bit of harness is almost surely the same on the dual pod)

[papajam]

Quote:

Originally Posted by Tifosi ...one of the wires that goes to the oil pressure gauge is indeed red with a black trace.