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Old 12-20-2014, 02:10 AM   #1
redlineslash
 
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Default hesitation and stalling

Just finished putting my 93 pathfinder back together and I've got a real bad hesitation when I open the throttle, then when hold steady at 2000 rpm it will either fluctuate from 2000 up to 3500 and or sputter out and stall. Not showing any codes and fresh tune up. I've tried cleaning the MAF, swapping out the TPS, and couldn't see any big vacuum leaks. I took a couple videos of it but I don't know how to post them up on here
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Old 12-20-2014, 01:22 PM   #2
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post the vids on youtube. that is what i do. are the plug wires and dis cab/button in good shape? are you running NGK plugs with the proper gap? the plugs alone will make one of these trucks run like shit and im not kidding. they gotta be NGK for some screwball reason.
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Old 12-20-2014, 02:23 PM   #3
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Yeah cap/rotor/wires are all in good shape. New plugs also. Funny enough as soon as I uploaded the video a bunch of IAC videos come up so I may just pull the plenum off again and check/replace that even though I did clean it pretty well knowing that I had this issue before it was torn apart.

Here's the video
http://youtu.be/N3mbtwAdPPw
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Old 12-20-2014, 03:50 PM   #4
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have you tried some seafoam? that shit works wonders. get the can that has the tube, so you can do a good induction cleaning on the throttle plate and inside the intake as well.

the can is like 10 to 12 bucks at autozone and walmart. read the directions on the can. its not hard to do at all.

i would also unplug each connector under the hood one at a time and make sure non of the connections are corroded. that is a known problem with the D21 and WD21 engines.
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Old 12-21-2014, 02:30 AM   #5
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Funny enough I just used Seafoam for the first time yesterday on another car and that stuff is fantastic.

I might run some in the case and then run some through a vacuum line. While it was apart I went clean freak on everything. Tons of sludge throughout.

I know everything directly attached to the battery cables need work also. From sitting the cable ends are pretty rusty.
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Old 12-22-2014, 03:09 AM   #6
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yeah that seafoam is one of the best chemicals on the market today. there is a thread i started many moons ago that is buried now, but it discussed everyones favorite chemical, additive and product to be used on anything automotive.
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Old 12-22-2014, 11:53 AM   #7
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I've always been skeptical of additives simply because I grew up with the mindset that they were band aids for the bigger problem. Like head gasket/radiator "stop leak"
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Old 12-22-2014, 03:43 PM   #8
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Quote:
Originally Posted by redlineslash View Post
I've always been skeptical of additives simply because I grew up with the mindset that they were band aids for the bigger problem. Like head gasket/radiator "stop leak"
I agree but in my mind seafoam is a cleaner, maybe I am wrong.
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Old 12-25-2014, 05:17 PM   #9
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Quote:
Originally Posted by redlineslash View Post
Just finished putting my 93 pathfinder back together and I've got a real bad hesitation when I open the throttle, then when hold steady at 2000 rpm it will either fluctuate from 2000 up to 3500 and or sputter out and stall. Not showing any codes and fresh tune up. I've tried cleaning the MAF, swapping out the TPS, and couldn't see any big vacuum leaks. I took a couple videos of it but I don't know how to post them up on here
I too have a 93 pathy bought/found in a virgin state(no mods done to it) it even had the original air cleaner. It has some hesitation in the throttle response when I put in drive and after I get to speed the abs light comes on. How do I fix these problems?
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Old 12-25-2014, 07:07 PM   #10
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the ABS sensor is on the rear end, just behind the driveshaft flange.
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