Golf IV / Jetta IV :: Idle At 1200 RPM Way Down To 800 When Starting And Engine Is Cold
Oct 1, 2014
I have a 1.8t jetta that has a weird idle issue when starting and engine is cold it like to idle at 1200 rpm then will eventually work its way down to 800 rpm
I have no cel codes and have looked for vacuum leaks (but may have missed one) ,but if i start the car and it idles at 1200 rpm then i shut it down and start it right after it will idle at 800 rpm as normal.
Its a 1.8t unitronic stage 1 stock everything except e type coils with plugs at .032, Also does not have much pull after 4000 rpm, not to worried but just may be part of the issue....
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After about a 45 minute drive yesterday the EPC light came on, idle went up to 1200 rpm's and when I turned off the car it wouldn't turn on, just leaving the ignition for about 5-7 seconds is when the car finally started.
Today, again after a 45 minute drive the EPC light came on again, same symptoms, except that the car stalled and I had to turn the ignition again about 5-7 seconds for it to start. No other light is on, and the car would start fine after about half an hour rest with no EPC light.
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Recently I believe i got a tank of bad gas. Was having problems starting. Finished it off filled up used injector cleaner and dry gas to clean it out a bit more. Now as I was driving the car would basically stall out but kick back in as I was driving and the EPC light would come on. I've been reading up and most answers are a bad coil pack. I pulled them all out and checked them they all look pretty good. No codes are popping up for it a coil pack. Unless I need a specific VW model computer to check. I'm gonna check the volts on the coil packs today to see as well.
The EPC light does go off after the car sits a while. It comes back after a few miles driving. After the EPC light comes on my car will idle at 1200 RPMs up from 800 when its normal.
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It levels off and idles fine after about 10-15 seconds but sometimes it idles so rough I think it's going to stall.
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When I'm idling and I rev the engine to exactly 1200 rpm i can feel an extra vibration coming from the engine. If i hold it at this rpm it will continue on. now this is not a violent vibration but more so of a buzz i can feel that travels to my steering wheel as well. what could it be ?
Another question is when i travel up my driveway and i hit the sloped curb at a angle i can hear a specific "clunk" sound coming from around the drivers foot well area what could this be? perhaps my axle going bad? I also heard it when I was reversing out of my parking space while turning.
I am new to this car and trying to make sure I'm doing everything i can to put it into good shape.
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Bought my 2006, V6, about 2 months ago. This morning was the first really cold once since I bought the care. When I started it today, the idle speed was about 1200 RPM. It took a few minutes to warm up and then the idle speed dropped to normal. Quick question. Is this normal?
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My 2000 jetta vr6 sounds very terrible when starting it in the morning after sitting overnight..
It only started when the weather has been getting colder it starts great in the warm and after I have been driving it recently.
It idles like crap, sounds like bogging and then eventually will get better once warmer
The other day got EPC light and traction control light and then that went away after a bit of driving now this morning check engine light ...
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Today me and my son installed a new K&N air intake on his 98' passat 1.8t, everything looks good but when you start it up the engine does not idle properly and it now starting to smoke.. Also it is leaking some sort of black gunk out of the exhaust pipe, we didn't drive it but when you give it some gas it hardly accelerates.
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I'm needing cold engine misfire. 2001 escape 3.0 engine 190300 miles on it. I changed the plugs, cleaned the fuel injectors, new air filter, new fuel filter, cleaned the pcv valve and new ideal control valve. When the engine is cold it starts right up but wont idle right and misfires sputters some to but run the rpm's up and it smooths out. drop to idle and it misses. Now when the engine gets to operating temp it seems to run fine. What am I overlooking to find the problem?
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Vehicle: 2006 Mk IV Golf 2.0 GLS With 82766 mi
Back story: I purchased the vehicle from my dad who did regular maintenance except that somehow spark plugs and wires slipped through the cracks until now. A few months ago (while I was in training) it apparently started showing CEL but the few times it came on, my wife said it just disappeared. Two weeks ago, it came on again and I had the code read which came back as P0420. I took it in and they replaced the rear cat after which it ran well for a few days. Then the CEL came on again but went off before I could get out in the shop. This weekend I went ahead and changed the oil and may have over filled it slightly. The next day I went to change the spark plugs and after changing 4, 1, 3 it started to miss fire in 4 and 1. I reset both spark plugs and got 4 firing again, but 1 remained bad. With a friend I determined there was a weak spark in 1 and changed the wire but no change.
Current situation: As it stands now, it's still miss firing. The worst seems to be between 1200- 1800 rpm and if I keep it above there the light will stop flashing and even turn off on some cases. I've read that heart mixed with moisture(I just moved from AZ to WA) can lead to a cracked coil pack or that the injectors can go bad. Should I just take it to vw specialist?
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I have a 2003 golf 1.8t and the car shakes when launching from a stop. it shakes as long as the rpm is below about 1200. i have an o2 b1 s1 error. also the car is not performing well and seems like it doesn't have enough boost although the boost is reaching its max amount. the car is mapped at 1.3 bar. so does the o2 sensor cause such issues or is it something else ??
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Is it normal for my 2003 Jetta 1.8T to have trouble reaching operating temps from a cold start when letting it idle in the driveway with outside temps of 30F?
I recently had my thermostat replaced because my coolant temps never reached operating temps even when driving on the freeway.
Now with the replaced thermostat it reaches close to 190 after around 10 minutes of driving but if I am starting a cold engine and stay idle in the drive way it will not heat up to 190 even after 10 minutes.
When I tried a cold start with just letting it idle in the driveway for 10 minutes my check engine light came on giving me the P0118 code which I had before I changed my thermostat and a P0411 code.
After getting the thermostat changed I drove 100 miles to a destination and 100 miles back home the next day. A few days later I drove 22 miles to pick up a friend then 22 miles back without the check engine light coming on.
It was only when I let the car stay in idle from a cold start for 10 minutes that the check engine light came on and gave me the two error codes of P0118 and P0411.
Now I suspect the P0411 is from a leaking secondary air injection hose but the P0118 code confuses me as I switched out the thermostat and the coolant temp sensor.
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It started snowing going down to 10-15 degrees during school hours. and whenever i go to turn my car on it starts but immediately the RPMs rise to about 1300 and then immediately drops to about 300 then immediately back up to 1200 but stays steady until it warms up then drops to normal about 700. i understand the cold start when it idles high until it warms up but why does it drop then come back up?
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I have 2002 2.0 Jetta that I totaled. I found a 2000 2.0 Jetta that had no engine or tran. I swapped the entire wiring harness with the engine and trans from 2002 into 2000. I even swapped the doors. The cluster, steering column and all. I am still in the process of getting a few parts to finish it up. At this point, the only thing not hooked up is the headlights and the radiator. I hooked up a battery and tried to get it to turn over today. I turned the key to the on position and the cluster did not do anything. The engine turned over very slowly in the start position.
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My 2000 jetta won't start. Lights, beeping, everything else happens when I put the key in, but nothing happens when I try to start it. I don't hear any noise coming from the engine, i.e. clicking, etc. I can push start it and it works fine.
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2003 1.8t gti ... Today when I got in my car...it fired up perfectly normal but when I got in it from leaving school it took 5min to fire up. The engine turned over but wouldn't fire all the time as if the spark plugs were bad. So I bought new NGK spark plugs and had the same issue just a little bit ago.
I know the obvious thing would be to change the ignition coils but they're out of stock everywhere so I have to have them shipped. My question is is the ignition coils the problem? They looked a bit worn but nothing serious.
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I usually get this sound when the engine is completely cold. I get a weird pulsating sound that's very loud, after the engine warms up a bit. It goes away completely.
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Okay so my 2003 Jetta GLI normally starts without a problem. But it seems like whenever it gets cold (below about 40) it doesn't even try to start. I turn the key and nothing happens, the engine doesn't crank. All the lights turn on like normal and they're not dim so I don't think it's the battery. It'll still start if I roll-start it, but there isn't any sort of hill for a few miles. Normally once it warms up later in the day it'll start up.
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1999.5 Jetta 2.0 Lit, engine 186000 miles, bough it few months ago and this issue is driving me crazy.
Engine Light "ON" and "OFF" depending on weather conditions.
On my , No Engine Light in Cold and humid weather. When weather is hot the light goes ON.
I was thinking on changing the O2 sensor(the one after the catalytic) I do not know if this will solve my problem,
I will like to change the oil, it is using regular 10/30 SAE what grade and kind will be suggested?.
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Both my radiator fans run all the time, even if the engine is cold. Soon as I fire it up, even if it's 0 degrees, they are running. To be clear, as expected, the fans do not run if the car is off.
Based on these symptoms, what components could be the culprit?
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I've had my 2010 GTI for 8 months now and have really only had one issue with it. When I start the car, it shakes before I start moving. Like, the steering wheel, body, pedals, gearshift, etc... It's not a violent shake, but definitely something I've never noticed in any other car I've owned including my MkV GTI. It doesn't seem like a normal feeling for a brand new car. I took it back to my original dealer at 4,000 miles and they said there was nothing wrong with it and they didn't feel any vibrations.
Well lately it's been vibrating more intensely and more often (at almost 8,000 miles) It now does the same thing while stopped in traffic or at lights. It's really annoying to me. I took it a couple days ago to a new dealer (I moved) and just talked to them on the phone. They also said there's nothing wrong with it and it's normal.
I forget exactly what they said it was because I was walking to the gym, but basically it was some cooling pump/fan that kicks on to cool the engine down and that's what is causing the vibration. But, they said it's normal and all VWs do it. I'm not quite sure why a fan needs to cool a perfectly cold engine in the morning though.
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