I have an 05 accent that overheats on short rides, it smells of antifreeze when you pop the hood. There are no visible leaks, and the antifreeze level is good.
Also the check engine light is on and is outputting a P2096 code.
I'm stumped as to what this problem could be, at first I was thinking thermostat or some kind of clog or something like that, now I'm not so sure.
In my quest to get my girlfriends car working, I'm encountering several hurdles, but this one is quickly the most expensive waste if the wrong parts are installed. The car is running rich and rough, lacks power. Here is what I have
Code P2096 - Post Catalust Fuel Trim System Too Lean. The manual indicates: Faulty PCM, Faulty Cat, Faulty rear o2 sensor, or hole in the exhaust line.
When I replaced the o2 sensor, I reset the OBD system and the car ran like a dream for about a week, then same problem, started running rich and rough again, a huge loss of power as well. It doesn't smell like a bad cat, I've replaced to o2 sensor.
Car Throwing This Code ... P2096 Post Fuel Trim Too Lean-B1 ...
View 8 RepliesOur 2005 Hyundai Accent GLS refused to start yesterday. It seemed like the engine was struggling to turn over. It took about 10 minutes and then the engine FINALLY started. CEL came on. We drove about 1 mile and back, and the engine seemed fine. We even turned the car off, and turned it back on with no issues.
We took it into the shop but it's been about a day and they can't replicate the issue.
FYI, the CEL code is "P2096" (Post Catalytic Fuel Trim Bank 1 System Too Lean). This has prompted the garage to look at the fuel pressure system.
Historical Issues:
1. Last year, we found out that the car had minor issues trying to start up. Specifically, it takes an extra second or two for the fuel to be injected into the engine upon start-up.
We would mitigate this by: sticking the key in > turning the key halfway > wait about 2 seconds > then turn the key all the way.
I wonder if this starter ignition or fuel injector is wearing out.
2. About 2 months ago, the car started to struggle when it came to changing gears -- especially on the highway when trying to reach the 4th gear. The car would also randomly jerk regardless if we were decelerating, accelerating or maintaining speed.
Around that same time, the car struggled to go uphill (especially on a very steep highway hill that's near our house). The CEL would flash and we were constantly nervous that the car would simply die and roll backwards.
It seemed like a transmission issue but the garage we took it to replaced the coils, wires, plugs, and vacuumed out excess carbon dioxide buildup. Since doing so, the car was running perfectly.
This is in regards to a 2007 Accent 111k miles, about 3 weeks or so .. I had a p0420 code, and replaced the downstream o2 sensor, and the CEL went off, and gas mileage went up. Now today I got p2096 code. Seems to mirror the p0420 code. So now I am thinking the catalytic converter.
So my questions are:
There are two catalytic converters right? one would be the exhaust manifold and the other would be half way through the exhaust system after the two o2 sensors?
Which should be replaced in regards to p2096?
Could anything else be causing this code?
Currently throwing both P0441 and P2096, just prior to this I was also throwing P0442.
Read around on web and decided the simplest thing it could be would be the fuel cap, may as well start there. Owners manual even recommends changing at 90k. Got a replacement from advanced (which is supposed to be built to OEM specs), re-set battery light stayed off, attempted to pass emissions but a few systems were "not ready". Was good for 80ish miles. Light came back on throwing P0441 and P2096. I re-tightened fuel cap and re-set battery, light went off.
Did some maintenance; spark plugs, air filter, oil/filter change and replaced the leaky oil pan. Keep putting on miles hoping to get to the recommended 200 mile mark before stopping by the emissions testing facility, 105 miles after re-set same codes came back. I'm almost positive I replaced a o2 sensor 2ish years ago for emissions. Also there is an obvious exhaust leak which could be a culprit. I seem to remember reading somewhere that a weak battery can cause problems with fuel pressure... not sure if it's true or not but for what it's worth I do know my battery is on it's last leg.
I'd like to avoid unnecessary fixes, it's only my winter car so as long as it's nothing major I'm not going to dump money in it. I'm going to take a guess and say the check engine light is coming on when these systems become ready. Plan is to try this re-set one more time hope for the best and if not replace exhaust or at least repair leak. Not sure on my next step for P0441 though. Vehicle is a 2004 Hyundai accent with 86k on it.
Car heats up (dial at 3/4 temp.) with A/C on at highway speeds. Turn off A/C and temperature drops back to normal (in between the two dots). Everything appears to be in working order.
View 18 RepliesGot a cel yesterday, got it checked out it read a P2096 fault code. The car runs fine, cleared the code it came back later in the day.
View 5 RepliesFor three months. I have a problem overheating false indication. I changed the water pump, the thermostat, the cooling radiator, the temperature sensor.
When driving with more than 110 kilometers, and turn on the lights, the temperature rises. The same is done with any electric charge, air conditioning etc.
If I reduce the speed of about 70-80 kilometers then the temperature begins to fall.
Note that I measure the temperature on the temperature sensor base, with a digital thermometer and while the temperature gauge was almost in the red field, the temperature showing the digital thermometer was 88-90 Celsius degrees.
2005 Accent Hatchback... As of Friday I noticed my vehicle had been overheating. The coolant levels haven't seemed to change but this is a recent issue so there still may be a slow leak I'm not noticing.
I let the car idle to normal operating temperatures over the course of 17 minutes. While warming up the top radiator hose became warmer, and eventually hot -- the bottom hosed seemed to stay cold and didn't appear to change in temperature.
After reaching normal temps I let the car sit another 3-5 minutes to watch the temp gauge, which did not move. I drove the vehicle stop-and-go 5 laps around my complex(about a mile). There was no noticeable change in temps.
I then turned on the AC which blew ice cold and did another lap. After the first lap the gauge began to rise fairly quick. I immediately turned the AC off and drove the rest of the 2nd lap. The temperatures continued to rise throughout the 2nd lap. I parked with the gauge at about 62% assuming normal temps to be 50% (middle of gauge).
Once parked I checked the hoses. Top hose was hot, bottom hose cold. Coolant tank was at the HIGH mark previous to it being on the LOW mark before the car was started. The oil is at the same level as it was when I changed it a couple months ago, and it looked clean.
Before I started the car I also noted that the radiator was filled to the top. As mentioned OIL looks clean, coolant looks clean. No unusual smoke coming from exhaust or engine.
I've done a lot of reading and some information suggest that the thermostat might be stuck closed. Other post say that if the thermostat was stuck closed the top hose wouldn't get hot. But, these are also post for other vehicles so that might vary here.
My 2000 Accent with 164,000km is not overheating but is dumping coolant into the reservoir so that the radiator is about a quart low. I did have a few problems with it overheating in the past month, but that was solved by thermostat removal (always above 80F here). I stopped before the overheats reached the redline and allowed the engine to cool before continuing, no known adverse performance during the overheats. No water in oil.
Failed troubleshooting:
Drained and replaced coolant x3
New radiator cap
* No thermostat.
My truck ('10 4x4 w/5.4l, 65k miles) gave a P2096 this past weekend. Cleared it and drove around for a while. Today it threw the same code. No other codes present, just P2096.
I did look under the truck and it seems pretty easy to get to the two sensors. Is it worth swapping them to see if the code changes to the other side?
Truck idles and accelerates just fine. Fuel mileage seems to be down a bit, but the air filter is very dirty and I will be replacing that this week.
I have seen you can check the sensor by heating it and measuring the voltage. Seems easy enough to do, but do you create other problems from that?
I did notice that the connector to the mass air flow sensor is cracked, probably from checking the air filter. I would think if that was the issue it would be showing some MAF code.
I have a 2003 Accent and it has been over heating constantly for about 5 months. After it started, we replaced the main radiator hose, thermostat, radiator cap AND a head and head gasket. It worked for about 2 weeks and then over heated again. It seems like there is too much pressure somewhere because the lid for my reservoir shoots off and all the coolant comes out. I'm just not sure where to look for a clog since it is coming out of the reservoir. It also recently started having transmission problems(?) or that is what I think it is... It won't go in reverse and has a hard time shifting sometimes. I'm not sure if it could be related or if it is the tranny also.
View 4 RepliesOk had a check engine light. It directed me to replace the IAT sensor.. After some research I found it was integrated into the MAP sensor. Purchased a new sensor and replaced. Drive about 15 miles CEL throws another code. P0106 (sensor i just replaced) faulty Map sensor.
Followed procedure to replace sensor.. unhook battery cable reset ecm. After reset engine is hard to start. Followed by RPM changes (assuming its the ECM re-adjusting). Then CEL flashes 5-6 times and goes out, Drive 15 miles. Map sensor code reappears. (note i only purchased one sensor But repeated install 2 times).
My thought is against wiring. since the codes refer to different signal wires one for IAT one for MAP sensor. Faulty replacement sensor?
2002 Accent 1.6L
I recently got a CEL with a P2096 error code on my 1.8L 2013 Elantra GT auto with 18K miles. This indicates some kind of oxygen sensor discrepancy between the pre- and post-catlyst O2 sensors which could be caused by a bunch of things. I cleared the code and it hasn't returned in a day of driving.
I did a quick internet search and there appears there might be a TSB out for revising the ECU software for this problem, possibly filed under TSB-13-FL-006 or Hyundai bulletin 356015.
2004 Accent - auto. - 100K miles
CEL for code P0304. I thought I had it solved but now it comes on after every fuel fill-up. Its happened at least 5 times or more. I know what the code means (ign. misfire #4 cyl.).
I read and checked what affects the code but this one has me baffled. I thought at first it is the evap. canister but the car takes a fuel fill-up without any trouble and it is not hard to pump it all in and does not give me the code. If I put a bottle of STP gas treatment in the tank it clears the code after about 40 miles driving but it doesn't explain why it sets off the CEL on every fill-up. I also thought I may have sediment in the tank and the fill-up is stirring it up but I have filled her up and various capacities. Also, several weeks ago I got the CEL code P0441 for the purge control valve. I replaced it, cleared the CEL and it never came back on. Fuel filter has never been replaced because it is built into the fuel pump assembly.
Overall drivability and MPG's are not affected.
The MIL light up and I got the P0501 Code. (Speed Sensor. I use a Scangauge II and the Speed is 0 KM/H at any speed. (was working before). But the in dash Speedometer work no problem. I look on the HMAservice web page and did not found where is located the Speed Sensor.
View 9 RepliesFurther reading suggests it could be the fuse blown causing this code, this code was coming up among others with the old lambda, so at least it cleared some codes.
Where is the fuse located for the O2 sensor? Will try that. How much more fuel will it be using also? Used half a tank doing approx 110 miles surely that's not right?
About 3 weeks ago, I purchased a 2001 Accent GL 4dr 5spd from a friend of mine. A few days later, the CEL came on. I went to O'Reilly and got the code pulled, it was for a cam sensor input LOW. I replaced the sensor and was on my way.
Yesterday after starting the car for the first time for a few days (I wasn't driving because it needed a clutch), the light came on. Has it gone bad again or is something causing the signal to be low? Maybe a low output on the alternator or low battery? The interior lights dim slightly when the brake pedal is applied while the car is running.
2001 1.5L 5-speed Accent
I did a search on this problem and found several people posted the same P0121 code. Strangely many people wrote that replacing TPS did NOT fix it. The code came back in 30 miles or so. Most of them didn't follow up what finally fixed it and only 2 people did by saying they got the code cleared by fixing/replacing:
1. Leak in the intake manifold, bad plug wires, etc.
2. New Head & ECM.
Is there any known fix for the P0121 on Accent 1.5L other than above?
So I bought a 2000 Hyundai Accent for my 16 year old daughter and the guy sold me a car that has a slipping trans. So I went to the Autozone and had the codes pulled and it was a P0734 code. I replaced the trans fluid and replaced the internal bearing and shim with the 42220LK kit from whatever it takes transmission parts store. Trans still slips. What else or should I just unload it?
View 3 Replies