TBI and CustomEFIs question

[Mastiff]

I switched to TBI from carb on my 83 K5 using a kit from CustomeEFIs. I just figured out today that his harness doesn't even have a wire for the crank signal to the ECM. I learned this because I was trying to figure out why it was starting kind of hard. I know some other guys here bought stuff from CustomEFIs, did you notice this issue?

Anyone know enough about TBI to know whether the crank signal makes a big difference? I can run the wire if it'll help, it would just be a pain to add the pin and split open the wire loom and all that.

 

[sweetk30]

you should call them back and ask them why its gone and we need to fix this.

i had a wire harnness from street and performance for my 4l80 swap and it was missing the aldl conector and the brake light switch wires. i ran it for 1 week before i realized it and almost burnt the tranny up because of there stupid misstake. and thay made me wait 3-4 days for the parts to fix it. when thay shoild have sent them next day.

 

[Mastiff]

Well, it's not really a business, it's a guy working from his house or something. I'll never get a new harness. Especially since it's been a year too. It'd be easier for me to run a wire than replace the whole harness anyway.

 

[Thunder]

Ummmmm... GM TBI does not have a crank siginal sensor. I imagine that is why there is no crank siginal wire. It uses the magnetic pick up coil in the distributor for all its timeing settings

 

[Mastiff]

They called it "crank signal" on the diagrams. It's the indication that the starter is active. You know... cranking.