My car qualifies for mismatch of t.b. connectors(tin-gold). Car currently has ''trac/failsafe'' off and on--waiting for it to reappear, so I can take it to dealer for codes. Even if it's not the t.b. connectors, what is your opinion on replacing the connectors anyway? Is this something that will eventually cause a problem in the future, or could this never be a concern? I've seen the info from tb 303-58, on how to do it, but is there any other pictures/videos or write ups on instructions

 

Time is not a friend of dissimilar metal connections, so in general it is a good idea.

A TINY amount of Oxgard paste, applied to the pins would probably be effective also, but may need to be renewed every couple of years. GB® Ox-Gard® Anti Oxidant Compound (OX-100B) - Electrical Tools - Ace Hardware

When using this it is important not to use too much, because it is conductive and can cause shorts if it gets on the plastic housing.

 

Good day :

I would suggest replacing. I had an intermittant trac/reduced perf fault and when it did come in the code pointed to the tbody. After cleaning and making sure all the connectors were tight around the tbody I thought I had it. It came back and I read in this forum about cleaning the connectors to the ecu ( computer ) and tightening a ground strap. These were both located up near the fire wall on passenger side under black plastic cover. The ground strap being underneath The ground strap was loose. Since fixing that and cleaning connectors the fault has not. returned.