[saki302]

Hello!

Over the last week, I've popped an 0120 error code twice.

I think this is a TPS sensor code. Other than popping the check engine light, the truck seems to run fine (though it pops into 'limp home' mode until I turn on and off the ignition 3 times).

Do I need to replace the TPS sensor, or is ti possibly something else as well?? I think Conicelli has it for $40 or so.

Thanks in advance!

-Dave

 

[LavosTRD]

Hello!

Over the last week, I've popped an 0120 error code twice.

I think this is a TPS sensor code. Other than popping the check engine light, the truck seems to run fine (though it pops into 'limp home' mode until I turn on and off the ignition 3 times).

Do I need to replace the TPS sensor, or is ti possibly something else as well?? I think Conicelli has it for $40 or so.

Thanks in advance!

-Dave

since when do our trucks have limp mode?

 

[ShowStop]

Hello!

Over the last week, I've popped an 0120 error code twice.

I think this is a TPS sensor code. Other than popping the check engine light, the truck seems to run fine (though it pops into 'limp home' mode until I turn on and off the ignition 3 times).

Do I need to replace the TPS sensor, or is ti possibly something else as well?? I think Conicelli has it for $40 or so.

Thanks in advance!

-Dave

I've never heard of "limp home mode" on our trucks. Anyways, yes that code is for an issue with the throttle position sensor. If there is no problems with the ECM or wiring, then the sensor needs to be replaced.

http://65.200.1.6/FSM/Repair_Manual/03tacoma/di/eg5vzfe/cip01202.pdf

 

[DriftinCO]

The TPS for my truck was $72 from the dealership...compared to $187 at the Moab OffRoad store this past week. Yeah, the mech thought that might be the "problem" but it wasn't. Whew!

 

[saki302]

I was reading through my friend's FSM for 1998, and I thought I saw it mention a 'limp home' type mode for several failure types including the 0120 TPS code, until the code reset itself with the ignition being turned on 3 times snd the sensor within specs.

If it's most likely the TPS sensor, I'll order one in a day or two.

-Dave

 

[saki302]

fixed!

An update:

I used my multimeter and found out the TPS sensor gave a reading of .53 at idle. If it goes below .5 it trips the CEL. I jsut loosened the TPS sensor and rotated it a tiny bit int he housing to tension it more, whoich brought the idle reading to .60. This fixed the problem- woohoo!
I guess the slight change is enough to offset any power fluctuations throughout the drive.

-Dave