Golf IV R32 :: Odd Code Combo - P2181 And Cylinder 2 Misfire
Oct 28, 2013
Started happening recently where I can't bring her past 5k without misfiring on cyl 2 and throwing the p2181 code. I changed the coil just to be sure, but I do know my coolant sensor wires were a little snug from the TB being so close.
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PO302 CODE . Lets hope that it's only cylinder 2 coil or spark plug !
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2000 Jetta GL 2.0 AEG. I am receiving the P0304 which I have identified as Cylinder misfire #4. I read on some previous posts that I cannot be the distributor because if it was I would be receiving misfires on two cylinders. The spark plugs are OEM NGK and have been replaced recently.
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Alright so my car is popping up 4 codes.
P0411 - Secondary Air Injection System Incorrect Flow Detected
P0300 - Random/Multiple Cylinder Misfire Detected
P0302 - Cylinder 2 Misfire Detected
P0303 - Cylinder 3 Misfire Detected
Vehicle: 1999.5 VW Jetta MK4 2.0L GLS (AEG)
The P0411 code I have had for a while now and I been lacking to fix it. I pretty sure I can get this fixed but it doesn't cause problems so I haven't paid to much attention to it. Anyways, the other day I noticed a puddle of coolant under my car so after checking it out, the water pump was leaking so I bought a new one and replaced the old one. However, during the replacement process I had to remove the timing belt and I accidentally turned the top pulley about 1 notch and didn't notice at the time. After putting everything back on, I turned my car on and the engine sound a bit weak so I ran for about 10 minutes around a couple blocks.
I instantly noticed that the car had no power and it took me a long time to speed up. When I got back, I plugged in my scanner and I only had the same P0411 code and nothing else. After carefully reviewing the camera I had recording during the water pump replacement, I notice I had turned the top pulley a bit so I went ahead and removed the timing belt, readjusted it, and it worked! I was excited that the car was working fine again. Soon after, I headed out to take a drive and noticed after 60MPH the car didn't have much power. The car still accelerates after 60MPH, but extremely slow. As soon as I arrived back home, I plugged in my scanner and that is where I seen the 4 codes. Now my question is what could have caused this? Could I have damaged something when I ran my car with the incorrect timing?
Things I have done so far:
-I checked to see if I left anything unplugged.
-I checked for any vacuum leaks
-I checked my oxygen sensors so see if I was running rich/lean
Things I will do after work today:
-Check the spark plugs
-Check spark plug cable for damage
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I recently changed my spark plugs + coil packs in my 01 1.8T because it read a couple cylinder misfire codes. Drove it for a few days out of curiosity plugged the code reader in again and it's still reading misfire codes. What could the issue be still?
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I own a BMW not a VW! My 19yr old daughter purchased her first car a few months ago, an '03 Jetta 2.0L with approx. 170,xxx miles. Just after she got it we pulled a P0420 code, but it ran fine so we haven't worried too much about it. I've cleared that code and after about 2 weeks it will come back. Last week it started to have some issues with rough idle, stumbling/hesitation. I pulled the codes yesterday an in addition to the catalytic code is a cylinder #3 misfire P0303. I thinking the 2 codes are not related. I'm assuming the typical things to look for on the misfire are coil, wire, plug? Looks like the coil on this engine is a combined unit so no switching coil packs to see if the miss follows a bad coil pack.
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She is a 1999.5 Golf 2.0 (although, she just has a rabbit symbol on the hatch, is she a Rabbit or did someone remove the Golf badge?) I just bought the car, with less than 160,000 miles. The dome lights work sometimes, Door Ding works intermittently as well, but sometimes will "glitch" in other words it will be making the sound but it kind of stutters? Odd? The horn sometimes works, however it is very silent? Check engine light is on with a camshaft position sensor code and miss on cylinder 3. Someone told me to replace the "109 relay"... could this be the problem or is this the CCM?
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2000 Jetta 2.0 cylinder 2 misfire. Replaced plugs and wires. No check engine light but code is pending and there's still a misfire. Need to smog
Replace coil pack?
Swap fuel injectors and recheck?
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When i got my 2000 jetta vr6 it has a CEL for misfires. Searched this board and google already. Im thinking injectors (havent checked yet) I noticed something weird the other day. At a light i get the CEL flashing. Then after a bit it will come on and stay on. I plugged in my generic reader and deleted the codes. When the CEL is on I get loss of power and hesitation. When its deleted the car runs better. I get my power back. I looked in the coolant tank and see no bubbles. Could this be the ECM? Im still going to get injectors but want to buy the gasket and anything else I am going to need to put it back together. I already cleaned the MAF, replaced some vac lines, coil pack, wires and checked plugs (gapped at .28) ...
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My CEL is on and the code is a p2181 (cooling system performance). My car isn't overheating or taking too long too warm up, so I'm guessing its not a bad thermostat or water pump. I want to replace the ECT sensor, but I haven't found any instructions for doing this on the 2.0TSI engine. Aren't there 2 ECT sensors? One on the lower radiator hose and one on the thermostat/water pump housing.
Lower radiator hose ECT sensor: [URL] .....
Thermostat/water pump housing ECT sensor: [URL] ....
Which one do I need to replace? The radiator hose ECT sensor seems easy enough to access, but I'm not sure what needs to be removed to replace the sensor on the thermostat housing?
I noticed that the temperature isn't always sitting at 190. It will drop slightly below on occasion for short periods of time. Could this actually be a thermostat issue?
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CEL came on yesterday and pulled P2181 which looks like it could be a bunch of different things. Taking it to the shop tomorrow morning so any guesses? BTW I would attempt the easy things first but it is my daily so.....
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So after 1.5 years of owning my R I got my first CEL. The code is P2181. I did some searching and this is a problem in the coolant system.
In the previous posts about this these were the possible problems:
1) Coolant sensor
2) Thermostat
3) Bad fans
4) Coolant mixture
5) Water pump
I checked my car and I have the updated green coolant sensor. My question is should I just get a thermostat and replace that or should I replace the green coolant sensor with another one? Do the green ones go bad?
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So this seems to be a common code that is thrown when you near 100k miles, I'm at 77k .. This thread seems to be the most organized [URL] ....
"Long story short, there are 5 main reasons this problem can pop up, listed in order of likelihood, least to greatest:
1) Coolant sensor
2) Thermostat
3) Bad fans
4) Coolant mixture
5) Water pump "
My issue is that the only ones I'm (probably) able to rule out is coolant mixture and bad fans. My radiator fans do turn on from time to time, so I thought I'd ruled that out (unless it would throw a code for not turning on at appropriate times?)
I heard of a test to turn on your AC and see if they turn on, but my AC hasn't blown cold air like ever, so I don't know if that affects the test (probably not?)
A couple years ago I had a shop replace the original thermostat with the new one, or was it the coolant sensor, or both (ugh, I don't remember!) That leaves thermostat, coolant sensor, and water pump.
I guess my main question is is there anyway to find out which it is between these 3, without spending so time, money, parts etc? It doesn't seem the coolant sensor is easily accessible for one.
My car has been really slow recently but I also need to change the spark plugs, I'm doing that this week. I cleared the CEL/P2181 code and it returned a few weeks later,
I'm starting to change my mind about this car being easy to maintain/reliable, I'm always on time with maintenance and with only 77k miles on a 2004 car.
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Had a P2181 come up twice now... both on startup on a cool morning. Came on again this weekend. Monday morning I noticed a small coolant leak under the front of the car directly in line with the passenger headlight, but it only leaks if I park the car with the front down a slope. I parked uphill on Monday night and no leak in the morning, but I backed in facing downhill on Tuesday and had a small leak when I checked late last night.
So, last night I broke out the UV/black light -- G12 seems to fluoresce yellow'ish. I couldn't see much, so it is a small leak. There is some wetness on the bottom passenger side of the rad that's dripping over the back side of the front bumper/lip. No wetness around any other hoses, thermostat housing, temp sensor, turbo lines. But that's all from the top view. No time yet this week to get it up on stands to pull the bumper/splash shields for a closer look either.
I am little concerned tho as there's some wetness around the valve cover and when I pulled the oil cap my eyes suggested a bit of fluorescence under the cap and inside the valve cover. I'm a little worried oil and coolant may be meeting up somewhere... And to think... I was just in the process of getting geared up to do brakes and plugs before getting a modest tune (stage 1).
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Like the title states, I've got P2181 (coolant system performance) CEL on again. I've had this code before and finally had everything serviced. It was off for 5k miles! I've spent a lot of time diagnosing this on the previous occurrences, and was 99% certain it was the thermostat due to the coolant temp dropping a notch or so when engine braking* on the interstate for more than a few seconds.
The current issue is mainly that the car will not heat up quite as fast, but it will not go lower from engine braking for a good chunk of time. I'm getting fairly poor MPG compared to what I was getting a month or two ago. The major changes are winter fuel blends and winter tires, which I'm sure affect the MPG a little, but I would hope not as much as I am seeing. Old average was around 27mpg combined and 30 or so for mostly highway, now I'm getting 24 tops. This is likely due to engine temps not being up to allow for most efficient fuel burning.
First plan is to change the CTS and see if that will fix it. If the code comes back after that, I'll have to check the thermostat and coolant mixture, but I wouldn't expect it to last only 5k miles.
Current: 105k
Thermostat and coolant changed at 100k
Water pump at 80k
CTS sometime around 70k
Engine braking lowering temp due to no fuel being ignited and coolant still circulating through the system if thermostat open.
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Last night on my way to go get hammered the check engine light popped on...
"Cooling System Performance"
I have read a few different post, and the last one I read referred to his radiator fans. I know for a fact one of them isn't working and I haven't replaced it yet because it hasn't advisable effected my driving.
So my question is what could be causing this? Also I'm not sure if this matters but my a/c doesn't work either.
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The code in question is:
18613 - Performance Malfunction in Cooling System
P2181 - 008 - Implausible Signal - MIL ON
Long story short, there are 5 main reasons this problem can pop up, listed in order of likelihood, least to greatest:
1) Coolant sensor
2) Thermostat
3) Bad fans
4) Coolant mixture
5) Water pump
It's a fun catch-all code that can be thrown from any of those. Given that our cars are approaching the 6 year mark, the coolant sensor & thermostat are the most likely culprits. Most of us up on maintenance have already done the green-top sensor, so it's probably the thermostat. In which case, here is the official changing the thermostat DIY: [URL] .....
If you get this code, first check your fans. They're running? Okay, change your sensor & clear it. If it comes back, change the thermostat. If it still comes back, which has been known to happen, investigate further. [IMG] [URL] .....
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I am having a misfire code on the #1 cylinder. Its not bad but I really want to nip it in the butt before it goes out completely. I was told to try and get some of the older style coilpacks that bolt on and go with them. Can I put them on my 03 passat 1.8t.
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1989 Nissan pathfinder. 6cylinder - VG30i - Manual trans - Throttle body injected. No CEL.
I've been trying to diagnose a misfire on my 89 Pathfinder during my lunch breaks. I just changed out the the plugs, dist. cap, dist. rotor and wires. Still misfiring.
When it starts-up the misfire "putt" is random, but once the idle lowers to about 1k it gets very rhythmic and just sounds like part of the idle and the car vibrates a little too much. Stinky exhaust (obviously) but no blue smoke or anything.
Finally bringing the car home to do some diagnosis over the weekend. Next I'm going to do some cylinder compression checks and vacuum checks. Probably check fuel pressure too. Is it odd that I'm not getting a cylinder misfire CEL code? The manual lists the code type.
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So I have A 2000 Chevy and i keep getting a code saying i have a misfire on cylinder 8. i have replaced the spark plug, i have replaced the coil. this code is still showing up. what else could this be?
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Have '01 SE. yesterday I got a misfire in cylinder 4 (code P0304) the service light blinked on and off 3 to 4 times than stayed solid. changed plugs and boots about 1 to 2 months ago, didn't change coils and they r not in the best shape but didn't have money to replace at time. So I replaced the coil for #4 and it still runs rough with code, plug has some ware but looks fine.
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