Check Engine light @ 75k miles

Poke Runner · 09-26-2004, 05:46 PM

Does the check engine light automatically come on @ 75k miles? Does it do this to get you to take it to the dealership to get the 75k maintenance?

I found the list of codes to run the self diagnostic, that's my next step.

Everything seems to be running smoothly.

thanks

This ad is not displayed to registered members.
Register your free account today and become a member on Yotatech!

Gadget · 09-26-2004, 05:50 PM

No, it is telling you something is wrong. The check engine light means you should get the engine control system checked and repaired.

Gadget

Rick F. · 09-26-2004, 05:54 PM

I see that you have an Amsoil air filter. $10 says that your MAF needs cleaning. It's pretty simple. You'll find writeups in the Tech section for the 3rd gens.

Bob_98SR5 · 09-26-2004, 05:54 PM

betcha its your front 02 sensor

bob

Poke Runner · 09-26-2004, 06:28 PM

"I see that you have an Amsoil air filter. $10 says that your MAF needs cleaning. It's pretty simple. You'll find writeups in the Tech section for the 3rd gens."

That makes sense. I think I've had the AMSOIL filter in for a while and its due for a cleaning.

thanks

halza · 09-26-2004, 08:27 PM

o2 sensors need to be replaced most likely, don't go to the dealer they'll rape you, I just did mine a few months ago when my toy hit the 100k, it was the 02 sensor.

kevin444 · 09-26-2004, 08:46 PM

Quote:

Originally Posted by halza

o2 sensors need to be replaced most likely, don't go to the dealer they'll rape you, I just did mine a few months ago when my toy hit the 100k, it was the 02 sensor.

When i bought my 2000 4runner sr5 it haf 104k miles. The seller told me the check engine light and got that fixed. I told him what was wrong and he said something o sensor. SO well thats good enough to me that he's saying oxygen sensor!.

SloPoke · 09-26-2004, 08:53 PM

It could be something as simple as your gas cap gasket, an o2 sensor, your cat. conveter pluggin' up, the the big vac. line into the air box isn't connected or is pinched, ect. ect. ect.

Gadget is right. You should get it checked.

SpecializedBrder · 09-26-2004, 09:03 PM

Is there such a thing as catalytic converter cleaner? because mine is definietly clogged or not working right and my engine is throwing a code for it and getting it cut off is gonna be a pain.

SloPoke · 09-26-2004, 09:31 PM

You sure your code is the cat and not the o2 sensor?

Your cat is flanged so it's just a simple unbolt and bolt replacment. Why's that goina be a pain?

X-AWDriver · 09-26-2004, 09:49 PM

Quote:

Originally Posted by SpecializedBrder

Is there such a thing as catalytic converter cleaner? because mine is definietly clogged or not working right and my engine is throwing a code for it and getting it cut off is gonna be a pain.

Convertors don't get clogged with "stuff" so to speak,when they are "clogged" it usually means the ceramic material has broken apart or in cases of running high exhaust gas temps then the material can actually be melted. Replacements are usually under $100.

SpecializedBrder · 09-26-2004, 10:03 PM

My 3rd gen 2.7 has the catalytic converter welded to the downpipe

kevin444 · 09-26-2004, 10:48 PM

Quote:

Originally Posted by SpecializedBrder

My 3rd gen 2.7 has the catalytic converter welded to the downpipe

please buy my LC headers and High Flow Cat

That will take kare the problem. Ill throw in a e10 torx socket!

MTL_4runner · 09-27-2004, 05:51 AM

Quote:

Originally Posted by Bob_98SR5

betcha its your front 02 sensor

bob

I'd bet money you're right.

Only way to know for sure is to pull the actual code number and post it when you get it.

SloPoke · 09-27-2004, 03:31 PM

Quote:

Originally Posted by kevin444

please buy my LC headers and High Flow Cat

That will take kare the problem. Ill throw in a e10 torx socket!

How much you need to get for your LCE header and hi flow cat?

Would you seperate? I NEED a hi flow cat but would only LIKE a header.

SloPoke · 09-27-2004, 03:33 PM

Quote:

Originally Posted by SpecializedBrder

My 3rd gen 2.7 has the catalytic converter welded to the downpipe

It came stock welded up?

Poke Runner · 09-27-2004, 09:53 PM

After work I stopped by Autozone to get the diagnostic run. They do it for free. I was a little pressed for time, it only took 5 minutes.

The code that came up was P0120 which is the Throttle Position Sensor/Switch. A circuit malfunction from what the guy told me.

What does this mean?

Is this something that can create a domino affect to other parts?

They have the part for $79.99. Where does this thing go anyways? Besides my ace if it will include lots of labor.

But the weird thing was that the check engine light turned off when I left the parking lot. Did it do that because the diagnostic was run?

Thoughts?

MTL_4runner · 09-28-2004, 05:32 AM

Quote:

Originally Posted by Poke Runner

After work I stopped by Autozone to get the diagnostic run. They do it for free. I was a little pressed for time, it only took 5 minutes.

The code that came up was P0120 which is the Throttle Position Sensor/Switch. A circuit malfunction from what the guy told me.

What does this mean?

Is this something that can create a domino affect to other parts?

They have the part for $79.99. Where does this thing go anyways? Besides my ace if it will include lots of labor.

But the weird thing was that the check engine light turned off when I left the parking lot. Did it do that because the diagnostic was run?

Thoughts?

That is a pretty rare code for the 4runner but yes, that does indicate a bad TPS (I would get it from the dealer instead tho).
See the link to all the codes here:
http://www.yotatech.com/showthread.p...ighlight=P0120

No, you shouldn't see any domino effect except maybe bad gas mileage.

It goes right on the top of the engine, very easy to get to and replace.
You can see it (black part) attached to the left of the throttle body in this pic:

Usually when they finish pulling the code they also clear it so if the part is still bad you will see the CEL come back on to signal that the problem has not been fixed and if you pulled it again you would see the same code again.

RuffRider · 09-04-2005, 10:16 PM

Did you end up purchasing this part from the dealership? I was curious what one of these cost...

09-26-2004, 05:50 PM	#2 (permalink)
Gadget Registered User Join Date: May 2002 Location: Southern MD USA Posts: 1,531	No, it is telling you something is wrong. The check engine light means you should get the engine control system checked and repaired. Gadget __________________ Underdog Racing Development GadgetOnline

09-26-2004, 05:54 PM	#3 (permalink)
Rick F. Registered User Join Date: Nov 2002 Location: Far western Kentucky (transplanted from central PA) Posts: 1,063	I see that you have an Amsoil air filter. $10 says that your MAF needs cleaning. It's pretty simple. You'll find writeups in the Tech section for the 3rd gens. __________________ '00 SR5, Desert Dune: 4" Deckplate, Amsoil TS-115, Bilsteins, Brembo rotors w/Performance Friction pads, Fiam Highway Blasters, Sylvania Silverstars, Hella Micro DE Fog Lights w/Hella Yellow Star Lamps - SOLD 1/24/09 '08 Sport, Salsa Red: Hella Optilux fogs, Silverstar Ultra Hi beams. Pending: Borla dual catback, CAI, shocks

09-26-2004, 06:28 PM	#5 (permalink)
Poke Runner Registered User Join Date: Aug 2003 Location: Austin, Texas Posts: 53	"I see that you have an Amsoil air filter. $10 says that your MAF needs cleaning. It's pretty simple. You'll find writeups in the Tech section for the 3rd gens." That makes sense. I think I've had the AMSOIL filter in for a while and its due for a cleaning. thanks __________________ 2000 SR5 4x4 Sport 5spd Amsoil Air Filter Michelin XCX/APT 265/75/R16

09-26-2004, 08:27 PM	#6 (permalink)
halza Registered User Join Date: Aug 2003 Location: BAY AREA, NJ Posts: 112	o2 sensors need to be replaced most likely, don't go to the dealer they'll rape you, I just did mine a few months ago when my toy hit the 100k, it was the 02 sensor. __________________ 1997 ltd, 275/70/16 on 16x8 PRO COMP wheels, elbow off mod, amsoil filter, hella fog lights.[font=Arial Black]

09-26-2004, 08:53 PM	#8 (permalink)
SloPoke Registered User Join Date: Oct 2003 Location: BAOK Posts: 542	It could be something as simple as your gas cap gasket, an o2 sensor, your cat. conveter pluggin' up, the the big vac. line into the air box isn't connected or is pinched, ect. ect. ect. Gadget is right. You should get it checked. __________________ Yoats & stuff

09-26-2004, 05:54 PM	#4 (permalink)
Bob_98SR5 Contributing Member Join Date: May 2002 Location: Los Angeles Posts: 10,092	betcha its your front 02 sensor bob

09-26-2004, 09:03 PM	#9 (permalink)
SpecializedBrder Registered User Join Date: Aug 2002 Location: Baltimore Maryland Posts: 255	Is there such a thing as catalytic converter cleaner? because mine is definietly clogged or not working right and my engine is throwing a code for it and getting it cut off is gonna be a pain. __________________ 185K Miles and Rising My 4runner 1996 Toyota 4runner Base 2.7 4cyl 4x4 Desert Dune w/Deckplate Mod, BFG KOs,Alpine CDA-7894, Rockford Fosgate Power 500a2 powering an Alpine Type R 15' sub, Rockford Fosgate 200a2 powering 5 1/4 Alpine type R rears, Kenwood KAC-7201 150w x 2 powering front polks,Cosmo Fuel Pressure Regulator, Magnaflow Exhaust,99+ headlights,Hoodscoop, Soon to be turbo(have the manifold, someone sell me a turbo damn it!)

09-26-2004, 09:31 PM	#10 (permalink)
SloPoke Registered User Join Date: Oct 2003 Location: BAOK Posts: 542	You sure your code is the cat and not the o2 sensor? Your cat is flanged so it's just a simple unbolt and bolt replacment. Why's that goina be a pain? __________________ Yoats & stuff

09-26-2004, 10:03 PM	#12 (permalink)
SpecializedBrder Registered User Join Date: Aug 2002 Location: Baltimore Maryland Posts: 255	My 3rd gen 2.7 has the catalytic converter welded to the downpipe __________________ 185K Miles and Rising My 4runner 1996 Toyota 4runner Base 2.7 4cyl 4x4 Desert Dune w/Deckplate Mod, BFG KOs,Alpine CDA-7894, Rockford Fosgate Power 500a2 powering an Alpine Type R 15' sub, Rockford Fosgate 200a2 powering 5 1/4 Alpine type R rears, Kenwood KAC-7201 150w x 2 powering front polks,Cosmo Fuel Pressure Regulator, Magnaflow Exhaust,99+ headlights,Hoodscoop, Soon to be turbo(have the manifold, someone sell me a turbo damn it!)

09-27-2004, 09:53 PM	#17 (permalink)
Poke Runner Registered User Join Date: Aug 2003 Location: Austin, Texas Posts: 53	After work I stopped by Autozone to get the diagnostic run. They do it for free. I was a little pressed for time, it only took 5 minutes. The code that came up was P0120 which is the Throttle Position Sensor/Switch. A circuit malfunction from what the guy told me. What does this mean? Is this something that can create a domino affect to other parts? They have the part for $79.99. Where does this thing go anyways? Besides my ace if it will include lots of labor. But the weird thing was that the check engine light turned off when I left the parking lot. Did it do that because the diagnostic was run? Thoughts? __________________ 2000 SR5 4x4 Sport 5spd Amsoil Air Filter Michelin XCX/APT 265/75/R16

09-04-2005, 10:16 PM	#19 (permalink)
RuffRider Registered User Join Date: Sep 2005 Location: The Rocky Mountains, CO Posts: 28	Did you end up purchasing this part from the dealership? I was curious what one of these cost... __________________ '99 4Runner, SR5 V6 5 speed '99 Jetta TDI, 5 speed

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Engine swap/check engine light?	spacoli	86-95 Trucks & 4Runners	1	11-29-2006 07:39 PM
check engine light	4runnerx3	86-95 Trucks & 4Runners	2	09-06-2006 08:26 PM
Engine Miss/Check engine light - Possibly TPS?	Extremesolo	95.5-2004 Tacomas & 96-2002 4Runners	2	09-17-2005 09:58 PM
check engine light	ajz399	95.5-2004 Tacomas & 96-2002 4Runners	3	03-22-2005 08:12 AM
check engine light + engine miss	descendents	95.5-2004 Tacomas & 96-2002 4Runners	6	11-03-2003 07:51 PM