Didn't even think of that, I guess I just figured it might be like the ones in the 03 Pathfinder I have that work after key is off, but once door is open they don't. Will give it a shot later today and let ya know what I find out.

 

Went up and hooked the lift ECU back in and it did the same thing again. The nothing after hooking it up with the battery connected, then worked fine with key on, but still works with key off and out. Gave it about 20 min, and unfortunately it still worked with no key in the ignition. So I tested the lift ECU out of the 95 V8i and nothing with power connected and key off, works fine with key on, and nothing with key off. So the only thing I can figure is something screwy is going on with the lift ECU on mine, but I cannot fathom what as both me and my mother who used to do soldering for a living could find anywhere that could be causing it to allow constant power. Going to test further with the one out of the 95 V8i tomorrow, and have everything hooked up and let it sit for a couple days and see if battery starts to go dead. Probably won't be another update before Sat. so I hope you have a happy Thanksgiving.

 

So went up today to try the battery, cranks over fine, doesn't seem to be any discharge going on, however there is now a rather large problem. It no longer fires, and it did when I parked it there, so I checked spark and for whatever reason the first 3 from front to rear on drivers side have no spark. Didn't bother testing past that point as they are brand new plugs, and wires. So I went and tested the power for the coil pack assembly, and it's getting power, but that is about it. Gonna have to wait till Monday to do a test on each one of the packs to see if they are actually sending spark out. Not sure why it decided to go all wonky as I didn't touch anything related to the spark, or starting of the car, well other than to test the ignition fuses to see if they were reason for battery drain. Well hope y'all have a good one, and hopefully will figure something out next week.

 

I have a very similar issue. Even after a new alternator which i thought was the issue. I'm going to start messing with it this week, if I have any luck I'll let you know

 

Thanks, I would greatly appreciate it. So I went out and tested the coil pack to see if it's sending out spark the ol fashioned way with a bolt and screwdriver, and the first 3 I checked did nothing. Checked the plug again, one wire has power with key on, and when cranking, the rest nothing, meaning the light on my tester didn't light up. So still not sure why it suddenly decided to do this, or what could be causing it, as I didn't touch any of that. Attempted to swap the old window lift,abs,and other computers that were originally in it back in, and no change. Then did a test with all of em out, same results, but at least the battery isn't drained down like it would have been. So I think I found the battery drain, now I just gotta try to figure out why it's refusing to start and no spark. Any help or suggestions would be greatly appreciated, even more so since now the 03 Pathfinder is constantly throwing miss fire on cyl 3, and the 02 Frontier won't even turn over with a good battery in it. Sometimes I hate cars, and think I should get rid of em all, and just go buy something pre computers :P

 

for the Rover does the starter try? If not I'd start checking relays. Those early 2000s nissans are a pain, the pathy could have a faulty distro

 

Remember the ECU controls the coils spark by switching the negative (ground) to the coils, so a test light probably will not show. 12 V power is constantly supplied on the red wire(s). A test light connected between red and any coil ground wire (any of the other coil wires) should flash while cranking or running.

 

It sounds like it is turning over fine, and I tested the fuel rail, and it is for sure getting fuel. Going to go out later and recheck fuses, and the plug order as I am fairly certain that I got em back in the right order when I pulled the coil pack out when doing the o2 sensors. Also going to try another battery just in case, as I saw some posts on one of the other LR forums where someone swapped the battery and it started right up. I did check spark on the first 3 plugs on the drivers side the other day but got nothing from all of em. Will try the test light thing you suggested John, and let you all know what happens. I am hoping it's something simple and it will fire right up.

I don't know what they were thinking on a lot of that 2000s Nissan stuff, other than making it completely more complicated than it needs to be, but think I got em figured out. The Pathfinder is a bad coil pack on cyl 3, and the Frontier had a badly corroded 100 amp battery fuse, so ordered parts for both of em. Another confusing why Nissan moment, the battery fuse bolts in, ok, but you have to pretty much pull the under hood fuse box apart to get to the bolts, oh and one bolt is a 10mm, the other is a 8mm.

 

I think johnzo might be into something, try a New ecu

 

I don't think we need to jump to the ECU yet. More often than not, it seems on this forum, crank-no-start problems are caused by a faulty crank position (CKP) sensor, although could be other issues. That's why troubleshooting was invented.