93 j30 Dies

General discussion forum for J30 and M30 owners!
caseyhiggins1
Posts: 3
Joined: Mon Aug 13, 2012 4:11 pm
Car: j30

Post

Hoping someone might be able to steer me in the right direction. I have 93 j30 with 180k miles on it. The last few months it has been cutting out after driving for awhile (length of time varies). It will just start running very real rough then die......when you try to restart, it will quickly die again or not even start. Then, let it sit for a few hours and it starts right back up and runs great. Same pattern everytime. Anybody else have this problem or know what the cause might be?
Thank you,
KC


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Mkiisupra
Posts: 129
Joined: Thu Jan 17, 2008 10:19 pm
Car: 95 Infiniti J30t
Location: Fresno Ca

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Dirty fuel tank clogging fuel pump screen.

caseyhiggins1
Posts: 3
Joined: Mon Aug 13, 2012 4:11 pm
Car: j30

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Thanks for the reply. What makes you think the fuel tank is the problem? Is their an easy way to clean it or do I need to drop the tank to clean it out?

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jdurrty
Posts: 158
Joined: Thu Nov 19, 2009 7:10 pm
Car: j30

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A common problem with J30's pushing 200k miles is the MAF sensor. I can't remember exactly what the correct specs were to test it, but the way I knew mine was going bad was that the same symptoms you are describing persisted with the MAF sensor both connected and disconnected. With 180k miles on the clock, checking your fuel pump screen and installing a new fuel filter might not be a bad idea as well. Hope this helps!

Edit: With the fuel tank being in the trunk, there is no need to 'drop' the gas tank. Rather, when working on the fuel pump, you can access it by removing the back panel in your trunk and with (I believe) a 10mm socket, a crescent wrench, and a little finagling you should be able to get the fuel pump out in under 10 minutes. Supra's post has some pictures and instructions that might prove helpful in accessing the fuel tank:

how-to-a-guide-to-strut-replacement-t566405.html

caseyhiggins1
Posts: 3
Joined: Mon Aug 13, 2012 4:11 pm
Car: j30

Post

I was thinking MAF too. I did clean it but that did not help the problem. Sounds like I should go ahead and replace it. Thanks!


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