Symptoms of faulty TPS?
08-27-2008, 03:42 PM
#2
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Location: maple ridge, British Columbia, Canada
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Symptoms include:
- Wandering idle ( 800 at one stop light, 1000 at the next)
- Bad mpg (lol?)
- Poor throttle response
- Lack of drop in idle when TE1 and E1 connectors are jumped
Unplug the TPS and if it runs better, you got some work to do.
- Wandering idle ( 800 at one stop light, 1000 at the next)
- Bad mpg (lol?)
- Poor throttle response
- Lack of drop in idle when TE1 and E1 connectors are jumped
Unplug the TPS and if it runs better, you got some work to do.
08-27-2008, 03:52 PM
#3
Registered User
My issue is (and I have a bad TPS I tested it) is that the truck idles fine on a cold start but as soon as it warms up and I go into driver the truck starts to shake/run like crap.
08-27-2008, 04:09 PM
#4
Contributing Member
I had all the symptoms listed about when my TPS took a crap...
Like Jay said, I unplugged mine and left it unplugged for 3 days till I got a new one cause it ran so much better.
So try that first and see what happens.
Good luck
Like Jay said, I unplugged mine and left it unplugged for 3 days till I got a new one cause it ran so much better.
So try that first and see what happens.
Good luck
08-27-2008, 04:25 PM
#5
Registered User
Ya I don't think my TPS is as bad as that yet...when I unplug my TPS the car runs worse and I don't accelerate well at all either.
08-27-2008, 04:36 PM
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might not only be a tps issue.. on my trail rig i unplug the tps it runs great,,plug it in it runs like ass.. so i dont plug it in!
but this is a 22re
but this is a 22re
08-27-2008, 04:51 PM
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haha.
Glad someone posted this. I think mine is crapola also. Tried to adjust it via 4crawlers site but my volt meter won't give a steady reading so I think it's gone.
Mine is hard to start, will turn the key upwards of 5 times and then when it does decide to run it will shudder for about 10-15 seconds then jump up to 1500 RPM. Once it warms up it will settle at 1000, and when it has been running I sit at stop lights and it drops to 7 or 800. Now that I know you can disconnect it, I'll try that tomorrow
Glad someone posted this. I think mine is crapola also. Tried to adjust it via 4crawlers site but my volt meter won't give a steady reading so I think it's gone.
Mine is hard to start, will turn the key upwards of 5 times and then when it does decide to run it will shudder for about 10-15 seconds then jump up to 1500 RPM. Once it warms up it will settle at 1000, and when it has been running I sit at stop lights and it drops to 7 or 800. Now that I know you can disconnect it, I'll try that tomorrow
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08-27-2008, 05:07 PM
#9
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haha.
Glad someone posted this. I think mine is crapola also. Tried to adjust it via 4crawlers site but my volt meter won't give a steady reading so I think it's gone.
Mine is hard to start, will turn the key upwards of 5 times and then when it does decide to run it will shudder for about 10-15 seconds then jump up to 1500 RPM. Once it warms up it will settle at 1000, and when it has been running I sit at stop lights and it drops to 7 or 800. Now that I know you can disconnect it, I'll try that tomorrow
Glad someone posted this. I think mine is crapola also. Tried to adjust it via 4crawlers site but my volt meter won't give a steady reading so I think it's gone.
Mine is hard to start, will turn the key upwards of 5 times and then when it does decide to run it will shudder for about 10-15 seconds then jump up to 1500 RPM. Once it warms up it will settle at 1000, and when it has been running I sit at stop lights and it drops to 7 or 800. Now that I know you can disconnect it, I'll try that tomorrow
I also found it a LOT easier (3VZE) to take off the throttle body and use my ohmeter to measure what needed to be measured. I was able to re-use my throttle body gasket as well.
Last edited by BoostinChick; 08-27-2008 at 05:08 PM.
08-27-2008, 06:01 PM
#11
Registered User
BoostinChick...
This is debatable, but I believe you may be seeing the results you are by unplugging the TPS is because it's on the same circuit as the auto tranny. I'm forgetting at the moment exactly how this is, but it has some management over the tranny and consequent engine load. Sorry for the vaguery. I suppose I should get more details, but I'm feeling too lazy at the moment.
08-27-2008, 06:03 PM
#12
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08-27-2008, 06:09 PM
#13
Contributing Member
08-27-2008, 06:32 PM
#15
My TPS worked just fine .. along with other units I tested .. my problem turned out to be the throttle body . throttle body shaft bushings to be exact ..
seems with th 260K I have on my unit , like a carb , the shaft bushing have warn , and now creating a vac issue .
seems with th 260K I have on my unit , like a carb , the shaft bushing have warn , and now creating a vac issue .
08-27-2008, 06:38 PM
#16
Registered User
Wow....that's a new on me. Never heard of that happening. Something to keep in mind, I guess.
So, how'd you figure out it was the shaft bushings? What clues were there?
So, how'd you figure out it was the shaft bushings? What clues were there?
08-27-2008, 08:59 PM
#19
Registered User
No, it's not me....although, rather similar in features. I'm much thinner, though. And, were that me, I wouldn't be wearing underwear.(Too much info?
)About the avatar and where it came from........that's courtesy of a4runnerfreak....aka Tony the Mobster. I thought it was funny and too much like my silly side. So, there it is. Viewable for all. I've been pondering a change, though.
08-27-2008, 09:04 PM
#20
Contributing Member
No, it's not me....although, rather similar in features. I'm much thinner, though. And, were that me, I wouldn't be wearing underwear.(Too much info?
)About the avatar and where it came from........that's courtesy of a4runnerfreak....aka Tony the Mobster. I thought it was funny and too much like my silly side. So, there it is. Viewable for all. I've been pondering a change, though.
