I think once it registered both left and right at the same time. I've taken the car to the toyota dealership twice and they don't have a clue. Greydog I think you are on the right track. You may notice the hanger bracket on this side is missing. Symptoms: I started throwing these codes every 500-600 miles earlier this spring. One of the symptoms of a leaking intake gasket is the engine running rough when started cold. Other than the light , the fj is in really good shape and well cared for.
This problem is common in many European vehicles, e. I set my scanner to graph the rear O2's. They will provide valuable info! I was wondering if maybe the cats are fine and it just has bad O2 sensors? When the car is accelerated, the throttle valve opens and allows more air to flow into the engine. The point I am trying to make is the electronics in today's vehicles are very sensitive. P0504 Toyota Description In addition to turning on the stop lamp, the stop lamp switch signals are used for a variety of engine, transmission, and suspension functions as well as being an input for diagnostic checks. A leaking purge valve, as well as brake vacuum booster can also cause this problem.
This tells you where to start testing. Toyota service information does note this in their description of the code, however many techs have replaced ecm's only to find out later the o2 sensor or ckt was causing the fault. The information I found was more than a silver bullet. Once the manifolds are extracted use a 22mm wrench to swap them into the new ones. My check engine light kept coming on bc of the gas cap. The first time I saw this car was from a referral by my local trans shop. Now the light is on and he has to liquidate everything to settle the estate with the rest of the family.
I have a 2006 toyota 4runner sr5 v8, 4wd with 74000 miles. A clogged up catalytic converter can be verified by measuring the intake vacuum and the exhaust backpressure. Unfortunately there is some small credence to the part about different brake pads. A: Check the throttle body, if it's dirty, clean it. You also need to unbolt the flange at the back of the Y-pipe.
I have Aldo alerted the dealership about this. So that definitively narrows it down to the primary cats not working at all. They did mention something about a possible break light switch issue. I come across this post in the techhelp archive Ok, now I have something to go on. Two socket sizes are used: 14mm with various extensions to disconnect the exhaust flanges and anchor brackets; and 12mm to remove 6 nuts on each manifold. The dealer sounds like they are not willing to investigate, and there are test procedures for these, so they may be trying to wait out the warranty or just lazy.
I feel like something is wrong with the abs bc I frequently skid in the rain and abs kicks in with light pressure slowing from 20 to 10 mph. But what would need replacing if it's the abs system?? Bank 1 Sensor 2 P1200 Fuel Pump Relay Circuit P1300 Igniter Circuit Malfunction - No. Common symptoms include: - Stalling - Difficulty starting - The engine starts and stalls - Lack of power - Unstable idle Because the mass air flow sensor readings are used to calculate the engine load, the traction control system may stop working and the traction control warning light might also come on on the dash. This week it has happened three times. A faulty airflow sensor is very common in many cars e.
The shop I was dealing with was at their wits end, replaced 8 coils and problem is solved! I had a guy come in all pissed off, because his 4Runner wouldn't pass emissions. Seems the guy forgot to mention it had been smacked hard enough in the front that the insurance company wanted to total the truck. . The intake boot must be inspected for cracks and rips. Ditto on the installation process. I'm planning to take it back for a 3rd time here soon as I am keeping a journal for when the lights come on, but wanted to educate myself first before bringing it in. He stated that in rare cases the coils back feed the pcm and shut it down setting multiple codes.
The lights will go off if I restart my car. It would be ideal if I could buy it right and do a little work to get it up and going. It started with hesitation on startup very low idle for 2 seconds , mainly when the car had been sitting for a couple hours. It seems that problems with the O2 sensors can cause this code to set. None have occurred when raining.
A discrepancy in voltage levels between the main cpu and the sub cpu. They change out he sensor causing the P0138 code, reset the system and have had no further problems. Now, is there anyone out there that has any knowledge as to what may be the cause of my warning lights coming on? For this reason, this code may very well be considered one of the most serious codes. I open the hood, fully expecting to spend hours tracking down a small leak, with our smoke machine. Please click for details prior to bidding. The connector may have a removable cover.
I started to bolt this flange back too early and had to undo it again to get the pass side manifold to seat properly. I know the rears are O2 and the fronts are heated sensors. Other possible sources of vacuum leaks must be inspected. The airflow sensor readings at different rpms e. Symptoms: The engine computer uses the mass air flow sensor signal to determine how much fuel to inject. Oh and it has 120,000 miles on it. Below you will find the most complete list of Toyota trouble codes available.