Golf/GTI VI :: Engine Idling Very Rough With EPC Light On

I was just at work tonight and went out and started my car for it to warm up (it is -20) and go back inside for about 15 mins, I come out and as I am walking back to my car. I notice tons of exhaust is blowing out from the bank puffing like a steam engine and idling insanely rough with the RPM gauge at about 900 RPM with a EPC code. I immediately shut off the car. Cautiously turn the car back on. Car is idling normally, EPC code is gone, rev it a bit. Everything seems fine.

View 20 Replies

Golf IV / Jetta IV :: Rough Idling And Die / Dim Light?

But I have a mk4 gti 1.8t awp and recently it's been going downhill. Right now my only mods are a fmic, Cai, and a 3 in catless dp to a 2.5 in straight pipe. My car recently starting idling very rough and would practically die, the lights would also dim. While casting the idle was very rough too. Then yesterday my car started idling even worse and dying multiple times, plus my turbo stopped boosting and making what I presume to be the "death whine".

I replaced my spark plugs a few days ago and I checked my timing belt and it looked fine. I couldn't find any vacuum leaks either so I'm not sure what would be causing the rough idle? My valve cover gasket leaks and makes my sparks plugs covered in oil but I don't know if that could cause the rough idle. I unplugged my maf and ran it and there was no improvement.

View 4 Replies

Golf V R32 :: Idling Rough Almost Felt Like Surging - Tach Malfunction Light Appeared

Went out this morning - which was one of the first times we've dropped to freezing since I've had the R32. Car started fine - but idling was rough - almost felt like it was surging. Rev'd it a few times, no change. Meanwhile the tach malfunction light appeared. I turned it off and then restarted. No tach light and it was idling normally.

View 2 Replies

Rough - Mazda - 626 :: 1999 - Rough Idling But Runs Fine At Higher RPM

This problem has been getting worse over the last 2 years. When the car starts it idles fine at about 1000 RPM. As soon as it warms up, it starts to idle rough, between 500 and 750 RPM. It almost quits running. As soon as you give the car some gas it runs just fine. About 3 weeks ago I got a "Engine Lean" check engine light error. I reset the system and have not gotten the error again. Since then I have: changed the MAF cleaned the EGR (made sure it closes completely and ohm out the coils in the actuator) changed the O2 meter on the exhaust manifold cleaned out the throttle body Ohmed out the air idle controller. What I should check next. I was planning to check the fuel pressure in case it is a fuel system problem. It is a 1999 ....

View 5 Replies

Camry :: 94 V6 - Idling Rough Now Won't Start

My car is a 94 camry, but has a 96 1MZ-FE engine from a avalon. Bought used and has been a great car for ~3 years. Just hear last couple weeks, it would start running and idling rough for a few minutes at a time. The last time I drove it home, it completly stopped on me on the side of the road. It finially started to make it home and now have in the garage. Now it will crank, but won't start. After you crank it, shut iginition switch off, then back to start position, you get a pop out the exaust pipe. From these forums and my haynes manual, I've checked the camshaft sensor, it appears ok (1.1k ohms), crankshaft sensor (2.0 k ohms), 3 of my coil packs, front side (1.4 ohms) manual says .5 to .85 ohms, so i'm not sure about this, the mass air flow meter (2.9k ohms), and it has the 5 volts to it, coolant temp sensor (2.3k ohms), replaced this last year. I haven't checked fuel pressure, since I have to go rent a tester.

View 14 Replies

Prius (Gen 2) :: Car Has Rough Idling When Stand Still

My 2007 Prius has 127K miles on it and is idling rough, especially noticeable when the car isn't moving.

I've changed the 12V batteries, spark plugs and used cleaner on the throttle body. Car acceleration has improved but fuel economy and the rough idling remain unchanged.

I have an ELM327 and the Torque Pro app and the car is throwing off no codes.

View 6 Replies

Passat (B6) :: 3.6L Engine Is Idling A Bit Rough

Just noticed the other day the Passat was idling significantly rougher than usual, most of the time it's smooth as butter but not so much lately. It's not rough like a bad misfire, just not very smooth anymore. This could be indicative of the dreaded oil-pump bolt failure rearing it's ugly head (finally)?

View 1 Replies

Camry :: 2006 - Idling Very Rough

My Dad Purchased an 06 Camry, 2AZ-Fe engine w/140,000 miles on it from a family member. He was told that the engine had some issues but wasn't specific about the problem. He recently passed and left the car to me. I used to be a mechanic but i have little knowledge on Toyota. The car cranks/starts easy, but idles very rough. I scanned it and the codes I retrieved were p0300,0301,0302,0304. I haven't done a compression test or a leak down yet, but plan to tomorrow. I also will check resistance on the coils and check the condition of the plugs. I looked through some old posts on here, and seen this engine has head bolt issues. pcv issues. and oil consumption issues. Should i pursue trying to fix this or leave this project alone.

View 3 Replies

Toyota - Avalon :: Vehicle Is Idling Rough

Car is idling rough. Mechanic said it might be an oil restriction not getting to a sensor and advancing the timing.

View 1 Replies

Cavalier :: RPMs Will Fluctuate Between About 625 - 675 When Idling Rough

i got a problem with my 96' 2.4 auto cavalier. It idles really rough at idle. I've replaced alternator, battery, idle air control valve, intake, plugs, and the fuel pump in the last year and a half. I've noticed that the rpms will fluctuate between about 625-675 when it's idling rough. About once every 11 seconds the car will rev up for a moment and will idle smooth but then it idle rough again. Every one in a while it will throw trouble code p0200 random multiple cylinder misfire.

View 14 Replies

Accent MC (2006-11) :: Shaking And Idling Really Rough

I have a 2006 Hyundai Accent that won't start. My wife was driving home the other day, and while she was sitting at the light she said she noticed a sudden change in the idle. She said the car starting shaking a little and idling really rough. When she tried to accelerate after the light changed, she said the car sputtered and would barely go.

She was only a couple of blocks from the house so she continued home. The car made it the rest of the way home, but she said it never went over about 5 mph even though she was pressing the accelerator as she would if she were going about 30...the car just never responded. When she pulled into the garage the car died as she was turning. Now it will crank but it won't start at all.

I tested the crankshaft position sensor with my multimeter and it was bad. I bought a new one and put it on, and I tested it immediately. The new one works, so I plugged everything back in and tried to start the car...nothing, just cranks and won't start. It's getting fuel and fire as well (tested both), but it's not hitting on any of the cylinders.

View 10 Replies

Dodge - Stealth :: 1993 - Idling A Little Rough Especially When AC Is On

I have a 1993 Dodge Stealth (3.0 V6 SOHC) that has been idling a little rough, especially when the a/c is on. It was suggested to me that a dirty throttle body could be the cause, so I cleaned it. After I did that it ran great with the exception of idling around 1000 RPM instead of the usual 300, then the next day driving home from work (ran fine on the way TO work) whenever I tried to coast or engine break my engine began to shudder and run really rough! what could be happening?

View 1 Replies

Passat (B6) :: 2008 - Engine Has Been Idling Rough And The CEL Came On

I have an 08 Passat 2.0T with 44k on it, just did the 40k service around 42k. This past Friday I filled up from almost completely empty, and later that day and ever since the engine has been idling rough and the CEL came on. Gas cap has been checked already.

Should I wait to go to the Stealership until I've burned this tank of gas out? Is there anything else I can do that you can think of?

View 8 Replies

Ford - Explorer :: 2004 - Idling Rough Around 500 RPM

I've got a 2004 Explorer 4X4 with the FlexFuel 4.0L V6 126,xxxish Miles... Last Monday i noticed that the x was idling rough around 500rpm. While in park or driving.

I spent Wednesday looking for vacuum leaks with carb cleaner, cleaned the MAF, Changed the Hose that runs from the intake to the evap purge valve thinger.

Broke off the two torx head bolts holding the TPS on and had to buy a whole new throttle body. Installed the new throttle body and fired it up. it idles around 1000 for a few seconds then drops to 500 ish rpm. While the rpms are coming down it runs as rough as it did before..

I've filled it with premium gas and added a bottle of gas dryer to the tank and still idling like crap, drives fine though.

View 10 Replies

LS / MKZ :: 2000 LS 3.9 V8 - Started Idling Rough / Code P0171

I have a 2000 Ls 3.9 V8 125,000 miles that started idling rough.I checked for codes and got p0171 (bank 1 lean), p0175 (bank 2 rich) and p0307(cylinder 7 misfire). I swapped cop and sparkplug from cylinder 7 to cylinder 5 and erased the codes.I ran the engine for a while and rechecked the codes to see if the misfire followed the cop and plug. They did not. I still get p0171,p0175 and p0307 (cylinder 7 misfire).

View 7 Replies

IS F (2008-2014) :: Rough Idling And RPM Fluctuations While Cruising

Check engine and tcs light came on solid. Rough idling and rpm fluctuations while cruising. Brought it to toyota and they scanned it revealing a P2195 code: bank 1 air fuel sensor stuck lean. So what I'd like to know is; How long was the vehicle in the shop? What is involved in repairing this problem?

View 10 Replies

Camry :: Rough Idling Engine On 2002 Toyota SE

Our '02 Toyota Camry with 92,000 miles has been idling rough for awhile. I tried cleaning the throttle body which actually seemed like it made it worse for awhile. I do need to replace the valve cover gasket and I don't think the spark plugs have ever been replaced. Is that a good place to start?

View 6 Replies

Lexus IS 2014+ :: IS350 AWD Rough Idling In Drive

As winter comes in full force to NYC I've been experiencing some rough idle on my is350 AWD even after warming up my car for about 3-5 min. For ex. when I am at a stop light and have my foot depressed on the brake it feels as if the engine is revving higher than usual as if the acceleration pedal is lightly being depressed while I am braking. Is it just due to the cold weather?

View 11 Replies

Toyota - Camry :: 2001 - Flutter And Idling Rough

I have a 2001 4 cyl Camry with about 147K. I bought the car from the original owner a few weeks ago. The check engine light came on. The car idles very rough at low idle (e.g., while stopped with transmission in Drive). My mechanic changed out the EGR and another air flow valve that was apparently stuck open too much of the time, and also the engine idle air control valve. The check engine light is now off but I don't think it was related to the rough idle because that started before the check engine light. I have seen other forums that discuss the rough idle related to fuel dampener and also weak/broken motor mounts and haven't checked those out yet.

View 3 Replies