Hello all,

My first real post; been lurking for weeks. Replaced the badly leaking gen 1 fuel head tonight with a second generation unit. The resistance of the heater in the new head is less than 1 ohm; the old one is approximately 150 ohm. I wouldn't have expected the wattage of the new one to be quite that high; but I wouldn't have expected the old to be that low. I am assuming the new to be correct and the old to be sick.

Does anyone know the resistance of the new heaters?

Just checked both of mine are 1 ohm.

_________________
05CRD: GDE Hot ECU & TCM tunes, Provent, Cat filter, Facet lift pump, TransGo kit, Florida TC, Samcos, stainless brake lines, HDS thermostat, Renegade light bar,
RL super sliders, Bilstein adjustables, Al's Gen 4.5 Arms, 235/85-16 Duratracs, DTT rear, Elocker front, EVIC+TPMS, Turbo timer, McNally pillar gauges, Weeks Stage II kit.

I think the resistance is temperature sensitive i.e. that's why it heats.

if it's cold - high resistance - generates heat from the current

as it warms - resistance drops.

although 150 still sounds high

_________________
2005 CRD
stuff
Skeptic quod gratis asseritur, gratis negatur

Follow up - the resistance is about 0.7 - 0.8 ohm. I checked the fuse size later and found it was 20A, which is appropriate. Thanks for the replies.