Yesterday I was driving down the road when my gauges on my 99SE started going crazy. They would spike up and down and then get stuck at 110 mph and hot on the temperature gauge and fuel went to zero. Also I noticed when I coasted to a stop while still in gear the car would stall out and I would have to start it again. (Manual Trans) It has come back on a couple of times but never for long. Now they are stuck at the bottom, no readings from any of them. Although the Seatbelt lights and ABS lights work on the dash. Any Ideas???

 

eh maybe im not understanding correctly if ur in gear and u come to a stop w/o engaging ur clutch car is suppose to stall. if u meant it with ur clutch engaged than nevermind what i just wrote.

 

Its weird, I engage the clutch as I am comming to a stop and I stall. But when the gauges work the car does not stall. Only when the gauges aren't working

 

Is your battery light on?

 

could be the ECU...my .02

 

No Battery light. As a matter of fact I just replace the Battery and Alt 5 weeks ago. No problems after that until yesterday

 

any codes.?

 

I have not had a chance to pull the codes yet

 

I would check the connections at the battery, try pulling/moving the cables. Check that the negative cable from the battery has a solid and clean connection to the body/frame of car. Also do the same with your alternator connections. Why did you get new battery and alternator? Were you having a similar problem before? It could be that an unstable 12 VDC is causing your problems. Try moving some of the cables while the car is running and see if it happens.

If you have a voltmeter measure the voltage at the battery terminals and than measure the voltage from the positive terminal to a good ground such as the engine or body of the car. Your readings should be very similar, if not youn have a connection problem.

 

Have any mods or other electrical work been done to the car? I just find that the Maxima electrical sytems are pretty reliable..... until someone works on them.

 

Fuse # 40 provides power to the gauges and other circuits, Again you should measure a similar voltage from F40 to ground as you do across your battery. If not, poor connection somewhere.

 

also known as "meter" IIRC

 

I replaced the alt because it went bad on me and as for the battery, I got a steal on a red top. Everything is tight.......I took the lead off the battery and let the ecu reset itself and the gauges now work. I will keep an eye on it for the next few days and keep you guys posted. Thanks to everyone for the advice.


I will keep fuse 40 in mind Nopike............good lookin out

 

Sorry, but from looking at the wiring diagrams in the FSM the ECU has nothing/or very little to do with the fuel, temp, or speed gauges. The only thing really common to those guages is 12VDC and ground provided by your battery/alternator that is why I would suspect something there. I could be wrong, let us know what happens.

 

I am having the exact same problem with my car. If you find out what the prob is. Any info would be greatly appreciated. Thanks.

 

I heard of this problem happening almost exactly as you described on a GMC Envoy when the vehicle speed sensor went out.

 

Any update opm45? I am having the EXACT same issue?