those solder joints will get hot enough to not make contact, and off goes the engine. It cools down, the solder joints make contact, and it starts right back up, only to get hot enough to separate again. It will do this until the joints crack enough to never start again...then you are stranded. I keep pushing my luck because I have yet to do either car. You will have to look at those joints thru a magnifying glass to really see how bad they are. I should be doing mine....and will when I tear things down to install the zietronics/dashdaq cause it is only a matter of time. Tighed1 will do it for you if you ship it to him...for just a token... or you could do itself. But, the dealer will never do it, and will tear your car apart looking for a "mystery no start".