Hi everyone,

My 95 Maxima Gle is driving me nuts.

Brief history: The car sat for a couple years because it wouldnt start. Recently I have tried to resurrect it with no luck. The previous owner thought it may have been the crank position sensor, which was changed and it didnt help. The car used to have problems starting up when it was cold and/or when it hadn't been started for a couple of days. Eventually it would happen more and more until it would never start.

What I have changed so far: plugs,the crank position sensors, and cam sensor, ECM, all 6 coils, and coolant temp sensor. The harnesses plugging into the sensors all check out ok.

The problem that I have noticed is very bad spark scatter while watching the plugs fire when hooked up to the coils and grounded off on the valve covers. To double check this, I reinstalled plugs and hooked up a timing light. The light goes crazy (almost constantly on) and doesn't flash like you would expect while turning the motor over. You can also hear smal backfires coming up through the intake while turning the motor over and stepping on the throttle.

Im guessing maybe the signal plate (A/T) is magnetized, but how could i check it to make sure?

Am I missing anything else that could cause this? I'm at wit's end with this car. All help is gratefully appreciated.

 

maybe this is a dumb suggestion, but if it sat for a few years, maybe you should change the battery and put in some fresh gas in addition to all the other things you've done?

 

the car has had all the basics taken care of. Brand new battery, new fuel, car has fuel pressure, new air filter, cleaned IAC. etc. the tune up was the first thing that I had taken care of. Thanks for checking though.

 

Dead ECU perhaps?

 

there is an ignition circuit condensor that you could check, also did you also replace or check the camshaft position sensor?

 

Try running some additional ground wires between the trans and engine. Or directly from the batt to the engine.
There were some problems with grounding from the trans to engine(the main ground is located on the trans).
Hope this fixes it.

 

ill look at the condensor, and the camshaft position sensor is new. thanks.

 

Ill try the groundstrap tommorrow. If its something that simple......

 

How would I check the signalplate to make sure that's the problem??????

 

The main ground look like it connects to the tranny because its hard to see it clearly but it really goes straight to the engine.

How would the signal plate get magnetized? If it is I have one I'll send to you cheap.

 

Thanks Broaner,

Ill look at the car on friday. How much are you looking to get for teh signal plate?

Thanks.

 

Cheap. I pm'ed you back. It is riveted to the flexplate so I'll send both. You realize that removing the tranny and torque converter is required right? Lets bring this to my FS/WTB thread in my sig.