Accent LC (2000-05) :: Code P1128 - Long Term Fuel Trim Too Lean
I found on internet loads of comment about this error code, but in my case the only bad thing is with fuel consumption - about 9-10 litres (!) for 100 km on motorway. Normaly it should be about 6-8 litres.
The error means: "P1128 is "Long Term Fuel Trim Too Lean". Which means the air/fuel mixture is leaner than the HO2S can compensate for."
Idle is working correctly (i think thats to do with MAF), engine start without any problems and overall car running smooth.
What can cause a bad fuel consumption? Is anything to do with a lambda (O2) sensor or it could be something else?
Accent LC (2000-05) :: Overheating With P2096 Code
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.
Accent LC (2000-05) :: Code P2096 - Fault In Exhaust Line
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.
Accent LC (2000-05) :: Engine Wouldn't Turn Over For 10 Minutes (CEL Code P2096)
Our 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.
Santa Fe (CM - 2007-12) :: 2008 - CEL On / Fuel Trim System Lean At Idle
I just got this 2008 santa fe a month ago from the dealer with 80.000 miles , and then yesterday the check engine light came on, i took it to auto zone and the put the computer and this 2 codes came up:
P2187
Fuel trim system lean at idle
explanation
the average long term fuel trim values at idle are more than 30% for 10 seconds
probable cause
- low fuel presure
- failed MAF sensor
- large vacuum leak
- cylinder misfire due to ignition system failure
P2189
System too lean at idle bank 2
explanation
failed MAF
probable cause
- low fuel presure
- vacuum leak on engine
- failed HO2S ( heated oxygen sensor-bank2 )
Accent MC (2006-11) :: Gas Mileage Went Up - Code P2096
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?
Accent LC (2000-05) :: Check Engine Light Error Code P1128 / Too Lean Intake System
This is the infamous error code many Accent owners might have experienced it. The code refers to "Too lean intake system". People try to replace all kinds of parts like ECM, MAF, O2 Sensor, TPS, Fuel Pump, Fuel Filter, etc. according to my research. I just bought a 2001 Accent and the P2188 light came on. I wrote an email to Hyundai Corp. Asking what would be the most likely part that will cause the (P2188) check engine light to come on.
View 3 RepliesLexus RX 2004-09 :: Off Idle System Too Lean - Gas Pedal Long Term Fuel Trim Jumps To 29
Have a system lean code popping up. long term fuel trim at idle is 14. No misfire counts. adjusted fuel trim from full rich to lean still no misfire counts. When on test drive and found after accelerating on the freeway soon as i take my foot off the gas pedal long term fuel trim jumps to 29 and multiple cylinder misfires start to occur. I take car off freeway and at stop light can feel misfire and fuel trim still at 29. coast it into the shop and at idle LTFT down to 10-14. Sprayed brake clean all over intake manifold but wasn't able to register any change in fuel trim. Fuel pressure is within spec. Cleaned MAF and Replaced with known good. LTFT still high
View 2 RepliesAccent LC (2000-05) :: Throwing Codes P0441 / P2096 And P0442 - Exhaust Leak?
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.
Accent LC (2000-05) :: Vibration Sounds Like A Plastic Trim In The Dash
Here goes, I just took ownership in the last month of a Hyundai Accent GS(2000). Car's been going great, but I have now found an annoying issue with a vibration coming through the dash. When I'm accelerating in all gears (and esp up hill when the car is under pressure), a Vibration starts in the dash and stays until I am roughly over 3000 revs. I'm in Ireland, so the car is Right Hand Drive. The Vibration sounds like it is coming from behind the speedo clocks near to windscreen.
So far, I have removed the Center Console and Stereo and the Vibration stays there. I've reached in behind the console and cant find any vibration there. I have also driven with the speedo clocks removed and putting my hand into the space trying to find the vibration.....but no joy.
The vibration itself sounds like a plastic trim in the dash (or behind the dash), but it has my stomped! Can it be something in the engine causing it? Engine ticks over fine, not lumpy in anyway.
Ford Fuel System :: 1988 - Got Code 41 - Lean Miss At Idle - ECM Or Injectors?
1988 F250 351 5.8
I've worked for months on this truck and I now have it in the shop. The truck shows a 41 code and has a lean miss at idle that get worse during acceleration and cruise. The injectors were refurbished 6 months ago and the ECM was replaced 3 months ago. All sensors are new and within specs. Fuel pressure is good and there are no vacuum leaks.
The mechanic has verified that the condition is not electrical related. The O2 sensor will react if carb cleaner is sprayed into the throttle but other wise shows constantly lean. He's now checking all pins at the computer for any off condition. He is suspicious of the refurbished injectors. I'm wondering if the computer somehow went out again. Which way to go or what/how next to test?
Ford - Ranger :: 2000 V6 - CEL Code Saying Both Banks Running Lean
I have a 2000 Ranger, with a 4.0 V6, 4X4, with 175,000 miles and it still runs great except the check engine light is on and it is saying that both banks are lean. I put in new plugs, all 3 O2 sensors, cleaned the MAF and checked for vacuum leaks, all to no avail...
View 17 RepliesPassat (B5) :: Check Engine Light Came On - Code P0171 / Fuel System For Bank 1 Was Too Lean
We have a 2003 Passat 1.8t. Had the Check engine Light come on. Went down to AutoZone and hookeded up the OBDII reader. Came up with P0171, Fuel System for Bank 1 was too lean. Probable causes:
1. Fuel Pressure of MAF (If Bank 1 & Bank 2 set codes together)
2. O2 Sensor
3. Ignition Misfire
4. Fuel Injector Problem
Car has 60K - has always run well. Wife says she thinks it's running a bit sluggish. I rarely drive the car, but I think she's right. Car is not missing or running rough.
I cleared the code & started the engine; Check Engine Light is off; then looked at the codes and I find a P0171 (Pending). She tells me that the light has been on before & then gone away. So I guess it clears itself, but eventually comes back.
Engines - Gasoline - Lights - Nissan - Sentra - Sensors :: CEL Code - Lean Air / Fuel Ratio Mixture
After my 2005 Nissan Sentra check engine light came on I had the codes read. The code is indicating that there is a lean air/fuel ratio mixture. I'm thinking this may be a false positive(bad sensor), clogged fuel injector, etc. The light has gone off and come back on. I live in Utah where the cold weather may play a factor. How to diagnose the real problem, or where I should start?
View 8 RepliesToyota - Corolla - Fuel-economy :: 2005 - P0171 Check Engine Code / System Too Lean
I 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 RepliesNissan - Sentra :: P1273 - Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 1 Code?
I got an 04 Nissan Sentra and I got a (P1273 Nissan - Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 1) code that popped up on it. Looking to see what the probable cause for this code to pop up? Is this a rare code that popped up on this car? There's no noticeable symptoms going on with the car.
View 9 RepliesMercedes-benz - C-class :: 2000 - Fuel Trim Malfunction Cylinder Misfire Detected?
Mercedes Benz 2000 C230 Compressor has fuel problem. Replaced fuel pump pressure checks were normal. Scan read fuel trim malfunction cylinder misfire detected...Where do I go from here?
View 2 RepliesLexus - RX300 :: 2000 - Check Engine Light Code P0171 Bank 1 Too Lean
2000... I have a code P0171 bank 1 too lean. My question is does this exclude anything that will effect both banks? If it was MAF sensor or fuel filter would it set code and say banks 1 and 2 running too lean? In which MAF sensor ohms out correctly. I cannot view fuel trim files. I have looked for a vacuum leak with no luck. I got some cigars to try to smoke it to see if there is any vacuum leaks. Trying to narrowing what i need to checks.
View 19 RepliesFord F-150 - 1997-2003 :: 2000 - Code P1151 Lean On Driver Side - Truck Bog Down At About 50 - 60 Mph
I have a 2000 f150 with a 5.4 past few months it has been throwing a p1151 code meaning it is coming up lean on the driver side. I just changed the plugs and it didn't work, neither did changing the fuel and air filters. cant find any vacuum or exhaust leaks. Replaced a bad injector along with the spark plugs and its still coming up lean.
The truck also seems to bog down at about 50-60 mph if i let off the gas and coast it will drop about 300 rpms. It has me confused and annoyed, i have true duals with glass packs could that be causing it?