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IanS
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1998 3.3l low drive idle and cutting out
IanS replied to Kyleblaqk's topic in 96-2004 R50 Pathfinders
Kyle, I had something similar that took me way too long to chase down. My 99 Pathy would behave wonderfully when cold, then after about 30 mins, I would stop at a stoplight, in Drive, even with A/C on and the idle would fluctuate and then drop to 500ish and stay there, feeling like it was idling weirdly, like it wasn't smooth and it was going to die soon. I got a few check engine lights for Misfire in Multiple Cylinders, Running too Rich or too Lean, and after quite a while I got a Cat code. Finally, after replacing the MAF sensor and cleaning it multiple times, checking for evap system leaks, turning the distributor a bit to increase idle, cleaning the intake manifold multiple times, checking the IACV, messing with fuel pump and whatever other random things I could come up with I decided to check the O2 sensors. Unplugged the upstream ones and went on a drive. No change in the bad idle. A few new O2 sensors later, no idle issues. I'm curious to know if you have the same issue.