I get this code, p171, every so often on my corolla. I have cleaned the MAF and finally changed it with one bought at AutoZone. I still get the code. What should I do next?
View 4 RepliesAfter a new distributor, check engine light coming on, getting a code 52, they (Toyota Dealership) replaced knock sensor. Unfortunately it seems to improve a little bit, but same issues happen; engine not running smooth at times. 94 Corolla. In the 223,000 mile club. 1.6
View 7 RepliesI've been getting a P0133 trouble code on my 2001 Toyota Corolla and am stumped as to what is causing it. I've ruled out the obvious stuff: I replaced the upstream O2 sensor and can vouch for the lack of exhaust leaks, since I replaced the entire exhaust system myself a few months back and checked again for leaks after getting the code a few weeks back. I haven't replaced the spark plugs yet (they're definitely overdue) or cleaned the MAF sensor (I've heard that these could be the culprits) and will probably do both this weekend.
View 3 RepliesI have a 2002 Toyota Corolla. On a hot day (the first in a while), I got a check engine light for P0125. I'm going to clear it and see if it comes back. I think it is a false alarm for insufficient engine coolant. If the code and check engine light come back, what should I do?
View 10 RepliesStill P0303 code after: New spark plugs, new spark plug wiring, new coils, new injectors, full tune up. 99 Corolla 147,000 miles. What else could it be? o2 senor? or maybe intake manifold leak? valve leak? what am I missing?
View 1 RepliesI've been chasing this P0171 code for over a year now. STFT is normal plus minus 5 but LTFT won't go below 21.1%. At highway speeds the lowest the LTFT will go is 10-15% then goes back up to 21.1% at idle.
Things I've done:-
- New the air intake gasket to the Orange one
- Cleaned the MAF sensor
- New PCV
- Smoke test reveal nothing (vacuum is at 21-24 in-Hg) (did not smoke test the exhaust yet)
- Changed to used fuel pump. Funny thing here is that now when I shift the car to park the STFT steady increases to 25%. The old fuel pump never done this. But the car feels like it has more power now.
- New gas cap
- Cleaned TB
- Cleaned fuel injectors and flow tested
- New A/F sensor and downstream O2 sensor
All parts were either genuine Toyota parts or OEM Denso. My next course of action is to buy a new Denso fuel pump or replace the ignition coil pack.
About two weeks ago, while driving on a hot, humid summer night, the check engine light in my 1998 Toyota Corolla came on. The following day, I took it into my mechanic, who plugged it in and came up with the code P0441 (Purge flow fault). He told me it was likely related to the fuel vapor canister, though I see this can also have to do with vacuum lines for the purge valve and canister or a bad purge valve itself. My gas cap was, and had been, tight, so it wasn't something as simple as that.
Reluctant to deal with this immediately, I went back to driving it, and lo and behold - the light went off after several days! Unfortunately, the light came BACK ON after several more. And most recently (a few days after coming on again), the light has now gone off!
Both times the light has gone off, the weather has been rather wet, but otherwise, there doesn't seem to be a clear pattern. What this on again off again pattern might say about the problem?
I have a 2003 Toyota Corolla, mileage app. 106,000. Check engine light first came on when driving to destination 40+ miles away (most of my driving is shorter, around-town trips). My mechanic said code is P0420 and so they reset it and said if it comes on again that I need a new cat converter. It did not come on until about 6 weeks later when I was on a longer trip again (had driven about 40-50 miles). Can you tell me if the P0420 code absolutely means that a new cat. conv. is needed or if it could possibly be a sensor or something else hopefully less costly than a new cc?
View 3 RepliesI have an 05 Toyota corolla, and have the check engine light on, I scanned it at autozone and error code is P0171 - System Too Lean (Bank 1). Which shows following possible causes: Faulty MAF, O2, fuel injectors blockage etc. On recommendation from the guy in autozone, I added fuel additive to clean the fuel line/ injectors. The check engine light went away for 9 months. But it is back on again. Tried putting in fuel additive again but the light remains on.
View 5 Replies2006 Toyota Camry 4 Cyl Manual Transmission. I'm getting a PO017 code - Engine Coolant Temperature (ECT) Circuit Low Input.
The dashboard temp gauge reaches a red H at low speeds. After about 15 minutes of driving, the car overheats and shuts down when the car slows down. I wasn't at home and didn't have coolant, so I put water in the coolant reservoir. 15 minutes later at home, the car overheated and shut down. The water in the reservoir was boiling and steaming.
When the car is idle, the radiator fan turns on immediately. I noticed the passenger side fan doesn't run. Could the one fan be the problem?
I was also really low on oil and added oil. There's oil on the engine block too. I might have multiple problems at the same time. See pics. [URL] .....
I experienced a misfire code for #4 cylinder on my 2006 Toyota Avalon approx 8,000 miles ago and replaced the three front bank coils with Beck/Arnley coils. I didn't realize they were made in china until they arrived. The car ran fine until today when I got another misfire code for the same cylinder. I still had the two old coils in the garage so I swapped out # 4 and I'm happy to report that solved the problem. My question is should I be concerned that the # 4 cylinder has gone thru two coils in 8,000 miles or chalk it up to cheap chinese crap replacement parts?
View 4 RepliesI have a 07 Sonata V6 that misses only when warmed up, runs fine when cold. code p0301 for cylinder one misfire, I have replaced the plug, coil and injector for cylinder one and still the same. idles and runs perfect when cold, dead miss on number one cylinder when warmed up.
View 1 RepliesSymptoms:
-Car "Surges" at any speed. Loss of power is significant.
-Check engine light is on , DTC code = P0420
Tried:
-Fuel injector cleaner
-Spark plugs replaced around 40k miles ago
-Checked for leaking valve cover gasket (oil in plug wells) None
Can a clogged fuel filter cause this? At idle the car is fine, the symptoms seem to only occur when car is under load (In drive). My son drove this car an it always seemed empty meaning he never put much gas in it.
My Corolla has the P0441 code, but not the typical 0445 code that comes with a loose gas cap. I cleared it and it came back (yes, I checked the gas cap). Googling the issue, I found service bulletin SB 0392-08, which implies the ECM could need to be replaced if the issue is not in the Evap system.
View 1 RepliesI have a 2009 corolla LE with 81,000 miles on it. Today after I got gas, the check engine light came on. I checked the OBD code and it said P0607. I cleared the code and continued to drive it and it ran fine and the light has not came back on yet. I'm a little worried about driving it on long trips now.
View 2 RepliesI have a 2009 Corolla with a 1.8 L. I have the misfire code P0301. I have changed the plugs, ignition coil, and fuel injector on cylinder one. It still has the misfire.
View 5 RepliesI have the code P0500 on my 2009 Matrix. The odometer doesn't function, all error lights are on, the power steering is not completely out but it's reduced. Also, the rear windshield wiper is constantly on. I replaced the vehicle transmission sensor today because I thought that would fix it all. It had absolutely no effect.
View 5 RepliesThe issue with 99 Corolla CE with 147,000 miles....
I have a misfiring P0303 Code - Cylinder #3 Misfire. Here is what has been done in an effort to remedy the misfire. A major tune up, new spark plugs, new fuel injectors, new spark plug wiring, new coil packs, The car runs ok once warmed up but in the morning the engine vibrates until warm and also shivers a little while the car is stopped at a stop light. I have dropped it off at the mechanics a couple of times now to no avail. Once the code is reset it will not display the CEL for a couple of days but the symptoms still remains. The CEL comes back on within 2-3 days with the same code. Really frustrating! Well, at least this time CEL in not flashing like before it comes on and stays on.
2009 1.8 Corolla . I'm chasing an intermittent P0352 code and misfire. Code points to coil pack #2 . Question is, which one is #2 ? I want to swap coils and see if the error follows the coil but I can figure out which cylinder is #2 and since all of the coil wires disappear into a loom, I'm not sure how else to tell.
View 2 RepliesCorolla has this code : B1801
When i erase it comes right back!
Open in (D) Squib Circuit. What to start looking for?
I have a 2009 Corolla S w/ 79K miles on it and recently my check engine light came on with the trouble code P0352. The engine would misfire while accelerating and then was extremely rough when at a stop light. This issue and check engine light have been happening intermittently over the last few days. I don't really know anything about engines/cars but doing some research came back with the following...
Possible causes
- Faulty Ignition Coil 2
- Ignition Coil 2 harness is open or shorted
- Ignition Coil 2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
Basically my question is how do I troubleshoot and figure out what the real problem is? I would rather not buy and replace the Ignition Coil if it is something else. From everything I have seen it seems the simplest method to test the coil is to switch out the ignition coil and spark plug on coil 2 with one of the other 3 ignition coils and see if the the trouble code follows it or stays on 2.