[Williamantelope]

2005 Nissan Murano I had my ECU go out replaced it a few months later it went out again replaced it now I’m not getting power to one of my coil packs

 

[MuranoSL2003]

2005 Nissan Murano I had my ECU go out replaced it a few months later it went out again replaced it now I’m not getting power to one of my coil packs

How many miles?

Check for shorts somewhere... Also check grounds to be sure they are intact, clean, and snug. A bad or missing ground somewhere can send current to the wrong place... Start with the negative battery cable. Inspect and clean the connection under the battery and at the CVT, replace it if it looks the least bit corroded.

I would check your alternator output as well. It should be around 14.4 volts or so just after starting the engine. Anything higher than the than the mid to high 14 volt region means the voltage regulator has failed.

 

[chidog]

Too many 1 posters never come back.
I just have to ask how did you know your ECU 's needed to be replaced? "Not getting power to one of the coils" Or signal? Since I have not dealt with the engine much on these cars, are they 2 or 3 wire coils? 2 wire has external igniter, 3 wire internal.