really big resistor? probably used for dual speed operation. i haven't seen many GMs with that, but fords i've seen with them.

the relay coil draws something like 1/6 of an amp everytime i've put my multimeter to them, so yes, 5 amps should be fine, getting fuses under that is iffy at times, so i'd stick with a common value...

depends on the fan....

with a lot of the GM factory stuff, expect something along the lines of a 40-60 amp maxi-fuse per fan. it only really needs that much overhead when starting to spool up,...

i was gonna say, based on your last post, it sounded like it was functioning exactly as intended...

anyways, 10-15*F above the stat rating is what i do as well, depending on how sticky it is. a...

same as you would with a solid-state relay....

the PCM controls the negative side of the coil(or "coil" in the case of the SSRs), so you give it +12V on the other side of the coil.

on the load...

you need to correct those fan settings....

think of it this way:

when the temp rises above the on-point (80*F), it wants to turn the fan on. then when the fan is on, it will turn it off once...

that's the old way of doing it, which i've never gotten to work...

this kind adds it to the XDF, try making a new item (scalar/table/etc) and you'll see patch as an option(if you're running the...

it works pretty simply, just add in the areas of the BIN that are patched, what they get patched to, what they were originally(if you want to be able to revert it back to unpatched) and you're pretty...

with the new patch item in tunerpro, it can now be done almost automatically.