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Poor performance & strong fuel smell

sprinthead

By sprinthead,
in 90-95 WD21 Pathfinders

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sprinthead NPORA Newbie

sprinthead

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I'm currently on holidays and am getting a strong smell of fuel on occassion when I turn my defroster on. I am assuming it is coming from underhood as I have it drawing outside air, not on recirc mode. I see no fuel filter, fuel rail hose or other leaks. What could I be missing ???

 

My truck also seems to have lackluster get up and go sometimes when in any gear. I gave it a full tuneup, have yet to run computer diagnosis checks to see if maybe the O2 sensor is hooped, but if I hold the throttle steady for about 20 to 30 seconds, it clears up and runs great ! I took a look at the O2 sensor before I left and it looked pretty dam old and crusty, so I am suspecting it isnt either heating up properly or is causing the computer to go in and out of closed/open loop. If it gets me back the 800 miles home, she will definitely get a good going over, but my tailpipe also seems to be rather black indicating over-rich fuel to me. Any thoughts ???

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GrimGreg NPORA Old-Timer

GrimGreg

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For the fuel smell, check the clamps on the crossover tube between the left and right fuel rails (toward the front of the engine) common for it to leak there and cause the trouble you describe.

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unccpathfinder NPORA Old-Timer

unccpathfinder

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For the fuel smell, check the clamps on the crossover tube between the left and right fuel rails (toward the front of the engine) common for it to leak there and cause the trouble you describe.

 

2nd that...my 95 does it every winter...

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