Golf IV R32 :: Code P0601 - MIL On

Car was scanned and this was the result...

16985 - Internal Control Module: Memory Check Sum Error
P0601 - 001 - Upper Limit Exceeded - MIL ON

Can't find a clear answer on this, I was told I need a new ECU....can this be right? Or can I just get a re-flash?

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Golf IV R32 :: P0601 Error Code - Need New ECU?

My r is throwing a p0601 sum error. I clear, it comes right back. I know the previous owner has it chipped at a garage that wasn't linked to any brand. I was planning on putting an apr/giac tune over it but now I can't (no money). I know this might mean I need a new ecu. Right now I plan on going to vw on monday and having them reflash the ecu bringing it back to stock...if it returns then i guess i need a new ecu... This sound right?

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Golf IV R32 :: Running Rough And Stumbling A Bit - Code P0103

124k, original owner, no mods. Car was running rough and stumbling a bit. A bunch of codes came up. I replaced coils because I had them, spark plugs look good. One code came back p0103. I cleaned the throttle butterfly and replaced the maf sensor. Still same problem.

When I first start it cold it idles high but stays running , once it warms a little the idle drops and then it won't stay running. Then the traction control light comes on and then the cel. I checked for a vacuum leak but came up with nothing.

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GTI 337/20th Anniversary :: Resolving P0601 Code With CEL Light On

I have a 2002 GTI 337. I'm getting a P0601 code with the CEL light on.That code says "internal control module memory check sum error".

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Sonata NF (2006-10) :: Stalled At Stop - Fault Code P0601

Just got off work about 2 minutes had to stop & it stalled. I let it sit for 5 & it started up with a fault code P0601 (Internal control module - Memory check sum error)? How to proceed for repair?

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Dodge - Caravan :: Code P0601 Internal Control Memory Fault

My mechanic has diagnosed a trouble code P0601 (Internal Control Memory Fault) on my 2002 Dodge Grand Caravan. He and I feel the car is running fine. Do I need to get the PCM replaced (as I've been reading online) or can I drive it as is? We don't have emissions checks.

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Golf IV / Jetta IV :: Check Engine Light On (P0601)

So I get back from being stationed in Korea for the past 2 years. I get my car out of storage and the check engine light is on. I scan it and get P0601. I do some searching on the Tex and see that it's the ecu. I'm tuned on APR. the question is can I take it to a local APR dealer here in Houston and get the ecu looked at?

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Ford F-150 (2004-2008) :: 2007 - Stumbling And Hesitating A Bit Between 25 - 35 MPH / P0307 Error Code

My 2007 Ford F150 Lariat (5.4L) with 82k miles popped a P0307 (#7 misfire) code one chilly morning. It began stumbing and hesitating a bit between 25-35mph, and each time it occurred, the engine light would flash on and off. Hesitation clears and light goes steady. Cleared the code and didn't see problems again for a month...until the next cold day (freezing temps). Popped again and hesitation returned. Ford dealer wants to change plugs. I've read coils can also cause the issue. Not sure if I can do either myself.

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Ford F-150 - 1997-2003 :: Barely Runs / Stumbling And Shaking / Got P0340 Code?

The vehicle has 160,000 miles and had been running great. I pulled into traffic, put the petal to the floor, and it started stumbling and shaking. I pulled into the parking lot where I was going and expected it to die but it maintained idle but shaking real good. When I started it back up the SES light came on. I was able to coax it home but there was no acceleration, wouldn't go over 40 mph, and was still shaking bad.

I used my code reader and got the code P0340, camshaft position sensor. I replaced the sensor but it is still doing the same thing and still showing the code. It will start if I push the gas while cranking but it won't rev over 2K. I am thinking it jumped timing but most of the threads I read say they have never seen this on these engines. I want to get some opinions before I start removing the timing chain cover.

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Ford 7.3L Power Stroke (1999-2003) :: Stumbling For The Last Two Years Intermittently / P1316 Code

I'm running a 2000 f250 7.3. The truck has been stumbling for the last two years intermittently. I did the 50 cent mod last fall to the uvch's. Changed CPS, idm, air flow sensor. This last week it finally threw the p1316 code so I have something to go off of. Trucks falling on its face so I parked it. Tore it down last night. Ohm tested all the injectors last night cold and all read around 3ohms. Tested the uvch's and continuity looks good on both sides. Tested them through the valve cover seal, tested fine. Tested them through the first harness and fine. All I have left to check is all the way to the idm. Still no luck finding the problem.

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Golf/GTI VII :: Stumbling And Jerking When At Idle

Is this a sign of a turbo going out or ? my GTI currently has 1700 miles on it and not all the time, but in the past 1700 miles the car has stumbled or jerked around a bit when at idle, i.e. the rpm's don't do anything but it seems like it's misfiring or something a few times then generally clears out. Same when driving sometimes, cruising along and it seems to misfire or stumble around but it clears up as well. Haven't noticed anything else weird but it's annoying and worrisome.

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Golf/GTI VI :: 2010 - Stumbling In Third Gear Around 30 - 35 MPH

That's the best way to describe what's happening. It goes like this:

Car is cold. Within the first two miles, in third gear (manual) around 30-35 mph, it has a momentary stumble that's very noticeable and it jerks for that second. Then it's back to normal.

The dealer recently replaced an O2 sensor (which has had no effect on the stumble). 2010 Golf TDI....

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Golf IV R32 :: Misfires In Low RPM Range / Stumbling And Just Not Firing On All Cylinders

Ok so I'm having weird issues with my big turbo R. I thought I was having misfires in low rpm range. Car was stumbling and just not firing on all cylinders ( just an expression but that's what it felt like) realized it was because of the esp. Ok no the main issue. Vacuum was sitting around 14hg. When I come up to a light or stop sign or just put in neutral while moving it revs it self ad vacuum will go to almost 0hg until I come to a full stop.

The rev is not a big rev only like 100-150 rpm increase. Also the throttle response is not there if I go to rev match down shift. Here's the weird part. If I unplug the Maf it runs super smooth 19-20hg vacuum amazing throttle response clutch chatter almost goes away. There are no cel with or without the Maf plugged in I have logs for both...

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Golf IV / Jetta IV :: 2001 GTI Engine Stumbling - Car Barely Accelerates

The issue: Check engine light on. Codes pulled, and he's getting O2 sensor codes (aftermarket exhaust has caused that since he bought the car) and 17705 Pressure Drop Between Turbo and Throttle Valve. The car barely accelerates, and you can hear the turbo spooling, and the engine has small surges. I had VCDS going and went for a drive and noticed his N75 Valve duty cycle was stuck at 5.1% no matter what throttle position he was in. So we're going to the wreckers this afternoon and will pull an N75 valve? The DV is stock and appears to be in good condition, but if changing the N75 doesn't work then that's the next spot I'll look.

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Sierra :: 1991 GMC Engine Has Been Stumbling

I have a 1991 gmc 1/2 ton with 200K on it. Its a 350 engine. The engine has been stumbling for a long time. I've tried many things ...new fuel pump and filter...complete tune up.....checked all vacuum lines..replaced a couple lines...EGR valve.....changed head gasket and intake gasket. Checked the warm up flap inside the air cleaner. I am now very very frustrated.

This stumbling happens often but intermittent also....sometimes worse than other times like the truck is about to stall. The truck seems like its being held back like a loss of power. The truck will begin to stumble so i will pull over and rev it up and it seems to clear itself for a short while then right back to stumbling.

Upon warmup in the morning she seems to run fine until hot. No codes being thrown ...service engine light NOT on. Even while at a stop i will hold the throttle part way and revs at different rpms. I am now at a loss and feel defeated.

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Passat (B5) :: 2002 1.8T Stumbling At Idle

Within the last week, while sitting a stop light, the car will very briefly (2 or 3 seconds) shudder and stumble. The RPMs drop a couple of hundred +/- and then it's fine. I have no other symptoms - no power loss, or reduced mileage. I've not experienced this before and it's happened three or four times recently. Is this indicative of an impending failure of some component?

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Accent LC (2000-05) :: Stumbling On Acceleration

2002 accent 1.6 motor and 5 speed,when I take off the motor sputters for a moment then is fine and if I let it slow down in any gear and step down on it it will sputter again then is fine, so far I have changed the plugs and air filter cleaned the throttle body and MAP, the wires and timing belt were changed out not long ago, took it in and hooked the machine to it and it said misfire bank 1 oxygen sensor upstream so replaced it and still have the problem, the body has 200,000 on it and the motor 100,000.

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Subaru - Forester :: Stumbling At Around 2500 Rpm

I have an '06 Forester XT 2.5 turbo that has, what I can only describe as a stumble around 2500 rpm. The car's maintenance is always up-to-date, and never has anything under 91 octane run in it.This started out when you had the cruise set and now does it all the time whether or not the cruise is used. I've had it to 2 shops including a Subaru dealer that had it for a month and couldn't find the issue. We've been through injectors, coils, maf sensor, etc. to no avail. The trouble code that we're given is a misfire in cylinder 1. We discovered, while trying to find the issue, that there was only 30psi in that #1 cylinder and the valve guides were the issue. So the motor was pulled, heads planed, etc. and new guides installed. Also, put in a new timing belt, and so on, that is usually done when the motor is out.They have done a leak down test and compression tests as well. This is my wife's car and she absolutely love it, so I need to get this figured out.

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Passat (B5) :: Cranking And Stumbling But Won't Fire Up

I just bought this car... today... ran great until I got a few exits from my apartment (I think the car knew I had my hopes up for successfully making it home) and all of a sudden the car shut down. There was no smoking, shuddering, or weird scents of any kind. Had my girlfriend following me and she said she didn't see or smell anything... the oil level is good, pretty clean... coolant is clean and pink... timing belt was just done about 5k ago... but she cranks and stumbles a little but that's about it. Battery died from repetitive attempts at starting and now I think that old girl needs to be replaced... but does this sound like a crank position sensor issue like I'm guessing? or possibly cam position sensor? Also might add that the dipstick and oil cap hole had a little smoke coming out of it when I pulled it to check the oil situation... B5 1.8T wagon

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