Wouldn't there be less amp draw with the lower Ohm of 1.5 vs. say 10-11 Ohms (resistance)? I was never good at math.VStar650CL wrote: ↑Fri Jan 01, 2021 7:08 pmHopefully the ECM driver isn't blown, that 1.5 ohms equates to 9.3 amps @ 14V, which is pretty close to the limit for the internal MOSFETs. They don't have short-circuit/overload protection. So if you change out the solenoid and the code is still present, check voltage on the drive side of the solenoid with the IVT active. You should see "middle" voltages. If it stays at or near the power rail voltage, the ECM is cooked.
No. I'll use V for voltage, A for current, R for resistance instead of the engineering E, I and R. Ohm's Law says:
Got it. Electrical math is even worse for me. Crossing my fingers the new VVT will work and the ECM is still a happy camper. I read back on your ground issue postings. I think I'm going to add an extra ground strap on my Xterra before problems start up. I installed a grounding kit years ago on a club members X.VStar650CL wrote: ↑Fri Jan 01, 2021 7:51 pmNo. I'll use V for voltage, A for current, R for resistance instead of the engineering E, I and R. Ohm's Law says:
V = A x R
A = V / R
R = V / A
We're solving for current A, so 14 V /1.5 R = 9.33 amps. It's supposed to be about 6.5 ohms, so when healthy, 14 V / 6.5 R = 2.15 amps.
I read that post too. I've heard of people that had that problem. I keep up on mine and have upgraded my battery terminal to a full brass HD marine type terminal. I have a spare battery fuse terminal I carry around with me just in case. Heard many that blew that too. Pretty much melts down into goo.it helps my friend is a master tech at a Nissan dealer and warns me what not to do. I just wish he could bring his Consult home with him. My new neighbor is a traveling service guy for Ford and he told me he can upgrade his scanner next week for Nissan so he can scan it for me if things don't go as planned.VStar650CL wrote: ↑Fri Jan 01, 2021 9:15 pmSpeaking of ECM's, on an Xterra, worry as much about the hot battery terminal as the ground bus. The ECM location and wiring are almost identical to the Frontier, and when it comes to hidden corrosion of the terminals, what you can't see can hurt you: