eggmaneddie

2000 maxima gle 3.0.. cannot get the check engine light to turn off.. problem codes indicate coil packs.. it would idle very very roughly.. trouble codes indicated ignition coils... replaced coil packs with aftermarket... light went off and idle issue resolved for only a short time, maybe a couple thousand miles.. light came back on and rough idle issue came back.. trouble codes indicated ignition coils.. replaced aftermarket coils with genuine nissan.. replaced MAF.. replaced cam sensor.. idle issue went away and car was running good for about a couple thousand miles but check engine light still on.. initially changed the coils myself using aftermarket parts.. then took it to the dealer who changed MAF and cam sensor.. however that did not work so they told me i had to use genuine nissan coils.. i purchased genuine coils and replaced them again myself.. car ran good for a couple thousand miles with no idle issues and good response but the check engine light stayed on..
today, however, the car had no response when trying to accelerate although idle was OK, and was unable to climb a small to medium mountain road.. i had to pull off the road because the car would not climb.. i know the motor mounts need to be replaced.. could the electronic motor mounts be causing these issues and burning out my ignition coils or other electronic parts?

DennisMik

iTrader: (2)

The motor mounts will not cause any other problems, they only affect themselves.

What check engine code(s) are you getting? Are you getting P0300 (multiple misfires) along with a P030x (x = 1 through 6) codes or are you getting the deadly P1320 code?

Link to the service manual for these codes:
http://boredmder.com/FSMs/Nissan/Maxima/2000.5/EC.pdf

For the P030x codes, page 378 list these things as possible causes:
* Ignition coil
* Improper spark plug
* Insufficient compression
* Incorrect fuel pressure
* The injector circuit is open or shorted
* Injectors
* Intake air leak
I The ignition secondary circuit is open or shorted
* Lack of fuel
* Drive plate or flywheel
* Heated oxygen sensor 1 (front)

For the P1320 code, page 585 list these things as possible causes:
* Harness or connectors (the ignition primary circuit is open or shorted.)
* Power transistor unit built into ignition coil
* Condenser
* Crankshaft position sensor (REF)
* Crankshaft position sensor (REF) circuit

Here is a link to a thread about someone with a similar problem to yours:
https://maxima.org/forums/5th-genera...unting-me.html

fat_kid

iTrader: (13)

You need to unplug those motor mounts before you have a problem though

eggmaneddie

fat_kid.. are saying if the mounts are unplugged it would cause those issues?

DennisMik

iTrader: (2)

The motor mounts will not create/cause any of the problems that you are having. If the motor mount goes bad in one certain way, it is possible that it will cause a transistor chip in the ECU to burn up. Even if that does happen, it will have nothing to do with your ignition coils or no power problems.

fat_kid

iTrader: (13)

No

+1 on that. They can lead to other problems. Bad problems.