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  #1  
Old 11-30-2012, 06:18 AM
mnementh mnementh is offline
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Default 93 Maxima No start.

Hi all -

Ex-professional mechanic here, trying to help the neighbor lady out.
She has a 93 Maxima 3.0-V6/AT that has had intermittent shutdown/no start since she got it; now it won't start at all. It died on her in an intersection and she cranked the battery dead trying to start it; one of her other neighbors said it was out of gas.

Recharged the battery and put 5 gallons in it; spent some time verifying the fuel pump was operating before I discovered that this car doesn't prime the pump at ignition turn-on like most American cars. I have good fuel pressure at the rail, good spark, but intermittent/weak signal on noid lights at the injectors.

I'm guessing Cam Position Sensor or Crank Position Sensor; which does this use for ignition trigger? I'm thinking it would be the other of the two since we have good spark which appears to be in sync with HV terminals in distributor cap; probably not a cam timing issue.

Also, I've read here that later models (like 2000-2004) have an Immobilizer device in the factory alarm system which functions by shutting down the injectors, and that these can fail and cause no start. Did they have that on models this old?

Any advice from those with more Nissan experience would be appreciated,

Paul in San Antonio
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  #2  
Old 11-30-2012, 06:17 PM
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Quote:
I'm guessing Cam Position Sensor or Crank Position Sensor; which does this use for ignition trigger?
Camshaft position sensor, which is inside the distributor.

Quote:
Did they have that on models this old?
No, most Nissan started around the 2000 year model.

My only guess is that it has some problem with the distributors, that's probably the most common problem with that year Maxima.
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  #3  
Old 11-30-2012, 06:29 PM
mnementh mnementh is offline
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I was afraid you were going to say that; so crank position sensor probably then... I hope it isn't a total clusterflop to do like the old Chevy V6s.

Paul
*Digs out the Chilton's*
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Old 11-30-2012, 07:00 PM
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Not at all. The distributor it's very simple to replace, but very expensive. I suggest getting one from the junk yard.
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  #5  
Old 11-30-2012, 07:31 PM
mnementh mnementh is offline
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Wait; I must be missing something here. If it gets ignition trigger from the Cam PS, which you say is in the distributor, and we have good spark, then the issue has to be Crank PS, or at least somewhere besides the distributor, right?

Paul
*Cornfuzzled*
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  #6  
Old 11-30-2012, 11:03 PM
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I just say that the most common with a no start situation with the 1993 Maxima is the distributor, which is the the one that includes the "Camshaft Position Sensor". As far as I know there is no "Crankshaft Position Sensor" on the 93 Maxima.

You should download the "Engine Control" section of the service manual for more information. You can download the section free from here: 1994 Maxima Service Manual - Loose Sections - Free with Registration - Nissanhelp.com
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  #7  
Old 12-02-2012, 05:13 PM
raysanders raysanders is offline
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Default 93 Maxima No Start

The camshaft sensor is in the distributor !!!!There is not one for the crankshaft, you only have a crankshaft sensor in cars that don't have a distributor!!!

Last edited by raysanders; 12-02-2012 at 05:20 PM.
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Old 12-02-2012, 06:47 PM
mnementh mnementh is offline
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Quote:
Originally Posted by raysanders View Post
The camshaft sensor is in the distributor !!!!There is not one for the crankshaft, you only have a crankshaft sensor in cars that don't have a distributor!!!
Tell GM that. ;)

As for not in 1993 models; well, the Chilton's for this shows a Crank Position Sensor on the Emissions Controls Page for the 93-94; but now I'm thinking this was a transition year switching from the VG30E to the VE30DE, and of course I got the bastard child.

I found a post referring to disarming the Factory Security with the driver's door key; I'm going to try that next time I can catch up with her. Can't hurt to try the stupidly easy thing first.

If the CPS is in the distributor, does it use that to trigger the ignition or does it use a reluctor for the spark and modify timing with reference to a degree wheel like the old Mitsubishis used to do?

Thanks,

Paul
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  #9  
Old 12-03-2012, 12:07 AM
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It's similar to the Mitsubishi setup; in fact, some of the distributors were made by Mitsubishi! If you have a distributor, then you have the VG30E. The VE30DE was only used in the 92-94 SE models and had individual coil packs (or coil-on-plug) and a power transistor.
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Old 12-03-2012, 04:27 AM
mnementh mnementh is offline
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Quote:
Originally Posted by smj999smj View Post
It's similar to the Mitsubishi setup; in fact, some of the distributors were made by Mitsubishi! If you have a distributor, then you have the VG30E. The VE30DE was only used in the 92-94 SE models and had individual coil packs (or coil-on-plug) and a power transistor.
Now THAT makes sense. Then we COULD have good spark if the reluctor assy is functional; but if the degree wheel is fouled or has a weak pickup, could still have a poor pulse at the fuel injectors. I guess I need to get inside the distributor and see what's what. Or like NissanTech said, hunt one from a boneyard.

Thanks to both of you!

Still gonna try that door lock thing first though...

Paul
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  #11  
Old 12-04-2012, 09:47 AM
raysanders raysanders is offline
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Default 93 Maxima NO Start

Hey Paul , one other check you can make, i found this out the hard way when my computer was telling me all was fine when my maxima just quit like this one is smell the cooolant and it had a gas smell, blown in take gasket!!! just another idea... Ray
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  #12  
Old 12-04-2012, 12:23 PM
mnementh mnementh is offline
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Quote:
Originally Posted by raysanders View Post
Hey Paul , one other check you can make, i found this out the hard way when my computer was telling me all was fine when my maxima just quit like this one is smell the cooolant and it had a gas smell, blown in take gasket!!! just another idea... Ray
That's a good idea; but it wouldn't explain the poor signal at the fuel injectors. I still haven't been able to catch up with her; busy with the holidays and I'm sure she is too.

Thanks!

Paul
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  #13  
Old 09-09-2017, 08:41 PM
That_93maxima That_93maxima is offline
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Did you ever find out the problem im having a similar problem with my maxima
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