TexasPthFnder95 Posted November 17, 2010 Share Posted November 17, 2010 Ok so today my truck started shaking severly at start up and had a very rough idle and the check engine light would light up the after about 15 seconds it would clear up light would go off and truck would be normal I really need some help with this its got me stumped i even changed the battery ground because it was almost corroded in half (the wire) i thought it could have something to do with it but apparently not... Link to comment Share on other sites More sharing options...
sewebster Posted November 17, 2010 Share Posted November 17, 2010 Any trouble codes stored in the ECU? Link to comment Share on other sites More sharing options...
TexasPthFnder95 Posted November 17, 2010 Author Share Posted November 17, 2010 Any trouble codes stored in the ECU? I havent checked it yet it just started doing this today. And do you mean checking it with a scanner? Or is there another way, sorry ive never had engine troubles before but its probaly something to expect at 231,000mi Link to comment Share on other sites More sharing options...
adamzan Posted November 18, 2010 Share Posted November 18, 2010 Sounds like what my truck was doing a little while ago. I checked codes (pinned thread in garage, go look) and came up with 51 injector circuit. I waited till I had a 1/4 tank left, put 2 bottles of injector cleaner in and haven't had a problem since. Link to comment Share on other sites More sharing options...
Precise1 Posted November 18, 2010 Share Posted November 18, 2010 Yes, you read the codes by counting the blinking lights on the ECU and then looking them up on a chart. Not the most convenient, but you don't need any tools or equipment to do it, just the code list. That is the best place to start most of the time... B Link to comment Share on other sites More sharing options...
TexasPthFnder95 Posted November 18, 2010 Author Share Posted November 18, 2010 Yes, you read the codes by counting the blinking lights on the ECU and then looking them up on a chart. Not the most convenient, but you don't need any tools or equipment to do it, just the code list. That is the best place to start most of the time... B Thanks for the help but where can i get the chart? Link to comment Share on other sites More sharing options...
sewebster Posted November 18, 2010 Share Posted November 18, 2010 http://www.nissanpathfinders.net/forum/index.php?showtopic=21 Link to comment Share on other sites More sharing options...
TexasPthFnder95 Posted November 18, 2010 Author Share Posted November 18, 2010 (edited) http://www.nissanpathfinders.net/forum/index.php?showtopic=21 Mine was the 51 injector circut i changed the battery ground and connections and put fuel injector cleaner and octane booster haven't had problems with it again... I hope its good to go and it was just a random malfunction Edited November 18, 2010 by TexasPthFnder95 Link to comment Share on other sites More sharing options...
nitrohazelton Posted November 21, 2010 Share Posted November 21, 2010 I had the same problem in my 95. Same code and rough idle, etc. Just poured a bottle of Seafoam in the fuel tank and drove it like I stole it. Problem solved. Link to comment Share on other sites More sharing options...
TexasPthFnder95 Posted November 25, 2010 Author Share Posted November 25, 2010 Well i went and had a dianosis done on it and it turned out to be the EGR valve. Now im wondering should i clean this one or pay the $130 for the new one They said it could be an electrical problem or it could be clogged/stuck open Link to comment Share on other sites More sharing options...
ahardb0dy Posted November 25, 2010 Share Posted November 25, 2010 with the truck running you should be able to press up under the EGR valve ( press on the diaphragm), when it is pressed up it should change the idle, if the diaphragm doesn't move that would be a problem as well Link to comment Share on other sites More sharing options...
mooreoffroad Posted January 12, 2011 Share Posted January 12, 2011 had the same problem put a new fuel fillter in and havent had a problem since Link to comment Share on other sites More sharing options...
Dowser Posted January 12, 2011 Share Posted January 12, 2011 On both my previous pathfinders I've owned,(a 91 and 92) the EGR's were stuck. I ended up replacing them both and that particular problem went away. Link to comment Share on other sites More sharing options...
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