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Old 02-06-2013, 03:11 PM   #81
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It's been 3 days and roughly 160 miles since the TPS install and so far so good. Still have the IAC disconnected and will look into replacing as soon as possible. I truly appreciate all the assistance from you guys (JP2, CBO, Raq, skinny, etc.) and will return the favor as/when possible (still learning about these engines you know). Now it's off to chasing oil leaks and raising that rear end back to stock. thanks again, James
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Old 02-06-2013, 03:16 PM   #82
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Thats awesome news! :-)
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Old 02-06-2013, 04:44 PM   #83
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I'm glad it worked.

One thing I've found from working on these trucks is that throwing money at expensive sensors does not always work.
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Old 02-06-2013, 11:53 PM   #84
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Quote:
Originally Posted by jp2code View Post
I'm glad it worked.

One thing I've found from working on these trucks is that throwing money at expensive sensors does not always work.
I hear you. With help from you guys, i tried to rule out everything possible before forking over $$ on this sensor. One thing i forgot to mention prior to purchasing the new tps was the condition of the old one, particularly where the wires enter the sensor body (or, gel material). I noticed there was a gap (or breech) that might have allowed moisture or other contaminants to enter which might have damaged or caused some form of intermittent issue. James
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Old 04-06-2013, 03:39 AM   #85
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Any update on this? I am having the "bucking" issue myself. Did the tps solve that problem?
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Old 06-05-2013, 08:25 PM   #86
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I had a 1995 Nissan Hardbody that stumbled upon acceleration when cold or when under load going up a hill, occasionally barked out the intake, bucked, had lost power overall, etc. the problem started out mildly and inhtermittently and got worse over a year and a half. I checked the sparks by having a timing light inside the cab. It had no misses. the fuel pressure remained steady at 32 psi. It had new plugs and wires and a cap. the timing advanced normally. Checked for vacuum leaks, sprayed carb cleaner in the throttle body and down the MAF sensor hole in the TB. I checked the codes (despite the CEL light not being on and found it had stored a code 14. Speed sensor. it is on the side of the trans. The speedometer does work. removed and ohmed out the speed sensor and it seemed to be working (changes resistance when spun). Unplugging the tps and driving had some effect. The position of the pedal also had a noticeable effect on the symptoms. I checked out the changing ohms produced by the TPS with an ohm meter and it seemed to be intermittent. I compared it against a new TPS and it was different, so I replaced the TPS. it improved things slightly, but ther were still definitely major symptoms left over. unplugging other sensors (MAF, IAC, AAC) had no effect (other than turning on the CEL) We then replaced the MAF with a used one from a dead truck...kind of on a whim, really, and that was it, totally. The truck resumed running perfectly in an instant. The CEL never came on over the course of the year, by the way.
I hope this helps someone. I spent (wasted, really) 8 hours was not able to diagnose the problem. I solved it by allowing Anna to install the MAF based on a guess from our friend Tim. Divine providence.
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Old 12-25-2020, 06:43 AM   #87
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Mine will crank but switch off but it will run for 10-20 seconds then just dies can not figure it out
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Old 12-25-2020, 03:38 PM   #88
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Quote:
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Mine will crank but switch off but it will run for 10-20 seconds then just dies can not figure it out
Sounds like maybe a fuel issue. Maybe the pump is going out. You should start a new thread and thoroughly describe your problem for better help.
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Old 12-26-2020, 11:51 AM   #89
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Builds pressure, but cannot maintain pressure once running?
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Old 12-27-2020, 05:20 AM   #90
89'HBV6
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Quote:
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Mine will crank but switch off but it will run for 10-20 seconds then just dies can not figure it out
That's called (IIRC) dieseling.

https://axleaddict.com/auto-repair/W...-Keeps-Running
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