Tweecer guys, and other tuning gurus. Important question.

[RydeOn]

I know this has nothing to do with mustangs but this is very simular to what you guys do and I ask your help. I hooked up a Split Second FTC which is very close to a Tweecer in a TRD blown Tacoma. When I hooked it up I used crimp connectors to hook up this unit to the wires on the ECU. These look very professional and easy to work with no mistakes in such a tight area. My tuner said that I need to ditch these and said using these will cause problems in calibrating things and improper sensor readings. He said I need to get rid of all the crimp connectors and soldier the wires together instead. Does this sound accurate? It doesnt to me because I thought this was the right way to hook sensitive electrical equipment up. What do you guys say before I go tear into this again?

 

[WhiteDevil]

Thats funny i have always heard that soldiering was the way to go on important electrical things.

 

[Michael Yount]

I have done about 95% of my car building over 35 years without soldering. I have rarely had a bad electrical connection.

I also use a special pair of electrical pliers designed for crimping stay-cons. If you size the connector for the wire properly and use the proper crimping tool, there's no reason to have a concern.

And soldering isn't without risk. Heat can get to devices that weren't designed to cope with such heat. When I have the wiring out of the car, and can clearly isolate (physically and thermally) the connection in question, I'll use solder and heat shrink covering. But those circumstances haven't presented themselves very often over the years.

 

[OinkAodeOink]

to do it right, i would recomend soldering and then heat shrinking the wires.

Its about resistance.. Those conectors most likely have a greater resistance then a soldered conection would. Now if you gob on the solder, and make a horrible mess, you defeat the purpose.. Im sure you know how to solder.

 

[RydeOn]

Welp, I soldered and heat shrinked the wires. Truck is going to hit the dyno on Monday morning, so well see what happens.