[njsteve]

I had a separate post looking for TCS info so I thought I'd co-post it here, with the results. Here was the original link: http://forums.maxperformanceinc.com/...d.php?t=508684

Here was my question:

"I am trying to make sure I have everything on my car that should be on my car. (1972 T/A 4550 HO 4 speed). In checking the 72 repair manual it says that there should be a TCS (temperature controlled spark) two pronged temperature switch on the passenger side cylinder head. Mine does not have one (could have been removed by a previous owner) but it does have the single lead (green wire) temp gauge sensor on the driver's side head. The reproduction harness has this blue and yellow lead connector that reaches to the exact spot where the switch would be. My question is this: Should there be a two pronged temp switch on the pass side? and if so does anyone have a part number for it? (I would imagine it is different than the idiot light switch as the TCS switch works as an on/off switch for the TCS system once the engine hits a certain temp range."


Thank you to everyone who assisted me in this quest. I love this website!


I just found an NOS three pronged TCS sender unit #6490384 on ebay for $30. The guy had it listed as a regular auction under the part number only, with no application identified, so it slid under the radar of most Poncho guys I guess. I emailed him to see if he had a buy it now price and he said OK to $30. I installed it today and the wiring harness is now complete for the whole TCS system. Oh, happy day!