CEL came on 4 codes P0113, P0118,P1298 &P1509 All at once

hey folks only 2nd issue in 160,000 miles .
If this is the wrong place moderators please move it to proper place .

P0113, P0118,P1298 &P1509 folks like title says CEL came on with 4 codes all at once
07 Tacoma 4.0 4wd Auto trans @ 160,000 miles never a issue til today . I'm a old school mechanic where you dove in & works with what you knew about cars & engines . If you got stumped you pulled out the old Sun Electric Engine scope & started looking at spark lines & such & found your problem there . This code reader stuff is new to me .

Here's what I found & what I think I will do , unless you guys have better info for me .

P0113
Intake Air Temp.Circ High Input 16500 The idle has been higher thatn normal after starting , mostly when cold but sometimes when warm . Plan to clean MAF & throttle body tomorrow .

P0118Engine Coolant Temp.Circ High Input 16504 I am low on coolant , I was thinking of changing the coolant tomorrow . Is there any secrets to bleeding the coolant after a change ?

P1509
Idle Air Control Circ. Electrical Malfunction see P0113 I've also read that you start from the muffler & start replacing things all the way up to the heads & head bolts . I'm wondering about that one .

P1298 Is that something to do with the built in voltage regulator on the alternator ?

thanks
animal

 

I'd have to poke around in some diagrams later to see if they are related, are you sure you have a P1298 and P1509? They aren't in the list of possible codes in the FSM for 07.

Coolant change is as easy as drain and refill, a spillproof funnel makes filling alot easier.

There is a radiator drain and 2 block drains, one on the passenger's side near the middle that's pretty easy to get to and one on the driver's side you can see through the wheel well but it's a pain to get to, if you open all 3 drains it takes almost exactly 2 gallons so you will need a gallon of full strength Toyota Pink and gallon of distilled water or 2 gallons of pre-mix.

 

Thanks for such a quick reply . The 1509 & 1298 are on my code reader , I just reached out to my son to ask him about clearing the codes & trying again thinking those codes may be still in the reader from several years back . Right now I'm trying to find out if my NAPA store has the correct antifreeze & if they have jugs of 100 % . I live off grid so I have plenty of distilled water to mix my antifreeze with .
thanks
animal

 

How old is the battery?

 

Battery is @ 3 years . Never had to jump , had 12/48 VDC this AM when I checked .
thanks
animal

 

If you have scan tool look at the intake air and coolant temperature when the engine is cold.
They should be the same or close to the outside air temp.

 

Following after, If you see an impossible temperature like -40 or crazy high then I would trace the wires and investigate for rodent damage of the sort. If not I would try running it with a sensor at a time unplugged thats throwing the code and see if it runs better unless you get your hands on a wiring diagram

correction:unplug the sensor with the key off and engine off before starting

 

Thanks folks , my son will be back sometime tonite with the good code reader so we'll double check the codes . just as I got back from town with the antifreeze it started dumping so I didn't get much done today . Can't complain we still need the rain ,
thanks
animals45

 

I kind of suspect Ground Point EE on the back of the passenger cylinder head although I would expect it to be setting O2 sensor and EVAP pressure sensor codes too if that ground was bad as they all share it.

 

Didn't get a lot done today , I did get the radiator & engine drained of old coolant . Got in the neighborhood of a bit over 2 gallons & have to think there's still some left in the heater & heater hoses ? My temp gage has never passed midway , I'm kinda thinkin I may change it while I have no coolant to spill cause I'm wonderin why it didn't show it was gettin hot but the computer said it got hot ? I have the throttle body off & all cleaned up , question on the gasket/o-ring . I have a new one , should I coat it with oil before I install it ? I have new spark plugs so I figure I'll be putting them in since I have almost everything assessable except # 6 . I'll try & see if I cant separate one of the heater hoses so I can get the heater cleared out . Hopefully my back will cooperate more tomorrow so I can get this unit back on the road . Deer season opens on Saturday so I need my truck , it's the only vehicle out of my hunting buds that I can get in or out of .
thanks for the pointers
animals45

 

There will be a bit in them but if the cooling system hasn't been neglected and your heat works good I wouldn't worry about it.

P0118 (Coolant Temp Sensor Circuit High Input) is when the voltage on the Coolant Temp Sensor Circuit goes above 4.91v (open circuit or bad sensor ground) not from an overheat condition.

Your talking about the Throttle Body gasket? If so no you don't put anything on it.

 

OK yea I was meaning the thick quad ring looking unit . So the first issue I have had with this truck is getting the heater to blow warm air . I have to go through all sorts of monkey motions to get warm air after the truck warms up . But that should be for another thread .
thanks again
animals45

 

That could be an actuator problem but it wouldn't hurt to flush the heater core since you are changing the coolant.
https://www.tacomaworld.com/threads/2nd-gen-information-diagnostics.784008/#post-28042158

 

Well , I'm up & running , so far no codes . The idle still seems off a bit & will stumble pretty bad when I turn on either the AC or move the heat control to Defrost . I'm pretty sure on these trucks when ya turn on the Defrost it kicks in the ac compressor ? I have a gulp spot ( for lack of better name ) if I tap the throttle real quick . It kinda acts like a vacuum leak , but I was very methodical when I took things apart & I think I only undid 3 vacuum lines & they way I did it three was only one place for each line to attach . My kid took a vid so I'll see ifin I can attach it here . Do these engines have cam chain tensioners ? I have a kinda ticking sound , that has the same sound as my old Datsun 2000 had til I changed the cam chain tensioner . OK I just tried to upload the engine vid which show the gulp/flat spot but it has the wrong extension , so we'll have to work on that on our end .
thanks
animal

 

Did you unhook the batter for a few min to reset the PCM?

The 4.0 is generally pretty noisy so a light tick at idle is normal.

Videos aren't supported on Tacoma World, you have to put them on a video sharing site and post the link here.

 

NO we didn't unhook the battery . He cleared the codes with his reader , which is a better one then the one i have .SO your saying that I need to disconnect the battery7 let it sit for a while & then re hook & start ?
thanks
animal

 

Yes that will reset the PCM and allow it to relearn the idle.
Just note coolant temp must reach about 174F before it will begin to learn the idle speed.

 

Is the air filter clean?

 

Yep , air filter clean . Did a quick test drive & lost the accelerator pedal , engine still running , but low idle . Did a restart & got turned around , lost pedal again another restart & made it home . His reader was plugged in the whole time so when he gets off work @ 5 PST we'll have him pull the codes & will update here .
thanks
animals45

 

So codes after disconnecting battery
2103
Throttle Actuator "A" Control Motor Circuit High
There was a 2111 code but it disappeared
P2111 which cleared himself , from what we read we supposed do forget about the P2111 until the P2103 is fixed ?
Throttle Actuator Control System - Stuck Open
According to my tach I'm trying to idle @ 500 rpm ,real rough & no accelerator pedal .
The only electrical I undid was for the MAF sensor & the throttle body . When I reinstalled the throttle body I tightened / torque in a criss cross pattern .
When I was cleaning the throttle body I was careful not to open it very fast .I guess I'll pull the throttle body tomorrow & check the gasket/o ring
thanks
animals45