2001 Mazda Tribute Electrical Connector to Fuel Injector

I have a 2001 Mazda Tribute (V6 3.0 similar to the escape) with 135,000 miles on it (daughter's vehicle while she is going to college). The car / truck would hesitate bad and turn off when it was cold outside but was fine when the engine warmed up. After doing a bit of research I found out it was the upper and lower intake manifold gaskets that needed to be replaced. I did the work myself and the results were great. Ok now for the question: I took the upper intake manifold out and replaced the gaskets. I did the same for the lower intake manifold which was attached to the fuel injectors. When disconnecting the electrical connectors from the electrical harness all but one of the connector’s locking click tabs broke off. I guess the decade of heat made that part brittle. When putting everything back i used cable ties to lock the connectors in place so that they would not vibrate off while driving since the locking tab was no longer functional. Do you all think this is adequate? The ties used are vinyl and are rated to 185 degrees Fahrenheit. Does it get any hotter than that 2 or so inches from the engine top? Both upper and lower manifolds are made out of some sort of black plastic (maybe polyethylene). I know they make ties where you can special order them that go up to 300 degrees Fahrenheit. To do this I would have to take the upper intake back off. Should I do this? My other option is to replace the whole wiring harness or buy the repair kits that they make. Both of which are kind of costly. What do you all think??? your cheapest and most efficient route would be to order new plug connectors. you can find them for cheap and they are easy to replace.

Here a link to some for a little over 20 bucks.
just make sure to compare the plugs and that they are identical.
http://cgi.ebay.com/ebaymotors/FUEL-INJ ... ccessories You should be alright. We get those sometimes too and we usually put a dab of silicone on the outside of the connector halves to keep them from backing off. The tie trick will work also. Sometimes you run into that on older cars and you can't get the connector without buying the whole engine harness or the parts have been discontinued. Older Chrysler vehicles were really bad about connectors snapping off or falling apart in your hands. Thanks for the input. Do you recommend puting a silicone sealent or a silicone gasket maker outside of the connector halves. I think the sealant is safe for plastics, don't know about the gasket makers but the gasket makers are rated for higher temperatures, like 700 degrees for the ultra copper one.

Thanks in advance for your assistance! The ultra black Permatex silicone gasket maker you can get at any auto parts store will work just fine. It won't harm plastic parts and you can put a little dab on one side of the connector and it should hold. You don't need extreme high temp silicone. If it got up to 700 degrees around the injector, that means your engine is on fire.Car Repair Talk's forum.