Last weekend I drove 200 miles non-stop. 4 times the throttle died on me, the engine returned to idle and the throttle pedal wouldn't do anything for 3-4 seconds. Then the car acted like everything was fine. No CEL, ABS, or traction lights. Scanned the car, NO CODES. This happened to my GTI 24V VR6 couple months before I sold it. VR6 issue?!? Checked VCDS and the engine has NO misfires whatsoever.
View 23 RepliesMy friends 2004 6.0 f250 has 280000 miles on it and it runs perfect "did" until I tuned it with my sct tuner to run a looney tune so he could see what it was like. The truck started he revved it up to 3'000 rpm then when it returned to idle it acted like someone shut the key off. The high pressure oil system is new and has 700 psi and the icp is good also the ipr. The truck Is not getting any fuel at all, no smoke from cranking at all. It is returned to stock and is still being difficult. It has fuel I checked the upper fuel filter, it has enough oil, and it also has a good motor just don't fire. Why?
View 3 RepliesYesterday when I started up the engine it cut out and died on me a number of times. The engine would start but it would not hold the idle for more than about 10 seconds, then it would quickly drop down to about 500rpm and die. It felt like it was starved for fuel. I pressed on the accelerator to try and give it more gas, but it was a bit unresponsive. Car did this for about 5 or 6 times and then on the last time I was able to give it gas and keep the rpm up around 2,000, then it went back to working normally.
Car was warmed up and it had been parked for about an hour after a prior 30 minutes of normal driving.
There were no error codes thrown up or messages on the dash. Is this a sign of something that I need to be concerned about? Where would I even start looking for a problem? If this a something that would be covered under warranty I want find it sooner than later so I can get it fixed while I still have coverage.
Car is a 2012 MK6 GTI DSG with 17,000 mi.
I have noticed this problem off and on over the course of the last year and a half. Last night we had a ridiculous rain here in Longview, TX. and my power cut out at my apt. I decided to go to the girlfriends house, and on the way, kinda took it easy, just because I am paranoid about hydrolock due to having AEM intake.
The problem only happens at WOT. I did this once and then really took it easy the rest of the way there. The engine really seems to cut out though, and the car bucks like a bronco.
Get to her house, park it, hang there for a couple of hours. Driving home I just took it easy, the rain was done, and it was fairly late. The esp light came on 1-2 minutes into the ride home, and stayed on all the way there.
Parked, slept, started up for work the next morning. Dry. No problems at all.
Now what I am wondering is if maybe some water is getting into a connector perhaps grounding out a circuit? And since the ESP light is coming on, maybe the haldex connector? I know there have been threads about ate up connectors due to corrosion, but I don't know if that could throw the system off so much as to cause the engine to "choke".
Currently the car has 75k miles on her.
I'm hoping it's nothing, maybe bad gas.
View 6 RepliesTruck is a 2003 1500HD Silverado with the 6.0L 364V8. Last winter I started getting the P1516 code and reduced engine power randomly during driving. After dealing with it for about a month I did some research and discovered in most cases it was either the wiring/plug or the TAC module itself. After going over the connections I couldn't see any visible breaks..etc but I decided to go ahead and change out the connector and about 6inches of the wiring.
After replacement the code hadn't come back until today, probably atleast 9months ago was the last time it did it. Today the code came on four times during a 10minute drive. Before it would come on once during the drive, i'd clear it with my scan gauge, and it would not do it again the entire day. I checked all my connections once again and everything is intact and there is no visible breaks and the connector is clean. I'm starting to think that it was just a coincidence that this problem quit when I replaced the connector, and was wondering if colder weather could have weight on this issue?
After poking around the posts on here and other sites I found that many ended up replacing the TAC module which is on the throttle body. After looking at mine the only way I can see replacing that is just buying a new throttle body with the TAC on it, can't seem to find just the TAC part by itself anywhere. So if I were to order a new throttle body how hard is it to remove/install? and do I have to do a relearn process or is it plug and play?
I owned a 2012 Ford Mustang that had a safety issue with the stability control. At random times around 50MPH, the stability control would randomly kick on, cutting throttle and applying the brakes - sometimes with force - causing the car to slow down, shimmy, and sway from side to side. These incidents didn't happen often, but when they did - watch out! Since the dealer couldn't replicate the issue, I decided to take a video of the car performing it's deed (and others have as well. This is by no means limited to just my car). Ford - at the corporate level - basically told me that unless the problem was happening when the dealership was looking at it, they weren't going to do a thing about it. As far as they were concerned, what I was experiencing was perfectly acceptable, and apparently normal.
View 7 Replies2005 camry 3.0, engine would not go above idle, check engine light on, vsc light and trac off light. codes, 2122 pedal position sensor circuit, 121 throttle position sensor, 505 idle air control, 2111 throttle actuator control valve stuck open, 2121 pedal position sensor. After checking online found many people who have had the throttle bodies fail, removed intake hoses and with the key on engine off actuator throttle. throttle valve did not open but could hear the amperage increase to the motor as the pedal was pushed further.
Replaced throttle body with a used one and checked operation. valve open fully and smoothly. cleared faults, vehicle was fine for approx. two weeks, then the same thing happened. replaced throttle body again with a used one and vehicle was fine for a day. Now the same occurrence. Checked fuses, wiring and connectors and all seem okay. Pedal position sensor fail? What is the likelihood of this happening? Is the throttle body once again suspect?
Today I should make trade for MKIV R32 and I only thing I'm bit worried is this one sound. It appears when speed is over 40 mph/60 kmh. And especially then when I set my gas pedal loose / idle. The sound seems to be coming from back and it reminds the sound when you leave your window just little open and wind blows in making very similar sound. It is high frequency sound and not loud but still can clearly be heard. Almost like whistling type of sound. Then when speed decreases below 40 mph the sound disappears.
The car has milltek resonated exhaust.
Only thing I could think of is that if there could be some hole in exhaust pipe or in window caulk/seal..
I finally finished installing my VF stage 2 supercharger. I fired it up and the idle is low (around 500 rpms) and a very rough idle. Throttle response is very slow, when it finally revs the car stalls. I can also hear a leak somewhere near the throttle body. I have an SAI block off plate. 630cc injectors and UM tune. No CEL
View 3 RepliesI have a toyota yaris d4d (2002). My engine light comes on, I lose power on throttle but engine will still idle. I turn engine off for a few minutes, then restart, I then carry on driving as normal as if nothing has happened. This happens every 2 weeks. Error code is p1121(accelerator pedal position sensor range/performance problem). How to rectify it ...
View 1 RepliesWe've owned this 2002 Mazda Tribute v6 for six years. Recently, the car has become somewhat dangerous to drive. While driving down the road at any speed, releasing the throttle does not result in the engine decelerating or returning to idle. Instead, it continues to hold the speed steady for 3-5 seconds before the RPMs drop. At lower speeds (~5mph or so) the car will even accelerate a bit, which can be a problem in tight parking situations. At higher speeds (e.g. on the freeway) releasing the throttle has no effect for a few seconds (ie it does not decelerate), which can be very surprising if you're responding to suddenly slowing traffic. The brakes can, of course, overpower the engine, but you do have to push harder to get the same braking effect as if you were not fighting against the engine. Releasing the throttle and shifting into neutral while driving causes the engine to rev quite high (3,000rpm) for the same 3-5 seconds before dropping to a steady idle, but it does allow you to brake normally. Shifting back into Drive while in motion but not touching the throttle causes the engine to decelerate the car normally. Touch the gas even briefly, though, and the engine will once again surge.
Oh, and turning the steering wheel from side to side, as you might do while parking, also causes the engine to surge, though not as much as it does when I touch the gas pedal. Also, I've disconnected the throttle and cruise control cables and worked the throttle plate by hand. Doing so causes the RPM to rise, as you expect, but it does not immediately return to idle when the throttle plate snaps shut. Instead, the RPMs stay around 12~1500 for 3-5 seconds before it drops to idle.
Over the years, I've replaced the throttle position sensor, idle air control valve, and other normal maintenance items. I used a meter to troubleshoot the IAC and TPS and used propane to look for vacuum leaks, but everything is within spec. There are recall notices related to unintended acceleration for these vehicles, but those are reportedly caused by interference between the engine cover and cruise control. I do my own maintenance and don't like engine covers, so I removed the cover from this car shortly after buying it; the engine cover cannot be causing this problem. I have disconnected the battery for an hour to reset the computer, but that has no effect. There are no trouble codes that show up on a OBD-II scanner, and the CEL is not illuminated. There are many internet reports of this problem, but thus far I've found none that indicate a solution.
I searched but couldn't immediately find anything about this particular line. I've been struggling with a rough idle for the past couple weeks, throwing codes that I'm running to lean all the time. I cleaned the throttle body and MAF, and was in the process of replacing the MAF and noticed a small hose fitting behind the MAF but before the throttle body was pretty much split in half. I don't know what it's for and I'm replacing it regardless, but could this be the source of my problem?
View 5 RepliesI have a 2005 F350 diesel, 54000 miles. I was at a red light today, engine is idling normaly.. light turns green and I step on the throttle and get nothing. My truck is rolling (in drive) as if it were in nuetral. I shut the engine off and it does not start for 10 to 15 min. Then it fires up and seems to be running as if nothing happened.
View 1 RepliesI have a 1992 Cadillac Brougham Hearse (Eagle Coach Co.) with a 305 V-8 that I’ve been having the following problem with. It had gotten to where it would start up, run at idle for 10 to 15 minutes and start cutting out, sputter and then die and would not restart afterwards. The next day, go out, starts right up and same thing after idling 10-15 minutes, cuts out and dies. So, I immediately think, fuel filter and or fuel pump! So, I replace the in tank fuel pump, sending unit and the in line fuel filter. Results remained the same. I’ve even swapped out the coil, ignition control module (ICM), starter and fuel pump relays from a like car and am still having the same results. Fuel gauge is reading between ¾ and ½ tank of fuel. Wondering what to look at next?
View 4 RepliesI have a 2005 f-150 street boss with 79000 mile, and it is shooting off going down the road, and the check engine light is flashing. The first time I started it back up and it would idle fine, but the throttle wouldn't do any thing. After setting about 15 min. I started it up and it ran good. I checked the codes and it had a p2104 Throttle actuator control system forced idle. It happened again with my wife. This time when I checked the codes it had the p2104 and a p2112 throttle actuator control system stuck closed code. What could be the problem, or a troubleshooting guide I could use to try and diagnose it.
View 6 Replies2012 F-150 5.0 Rough Idle Upon Start up - YouTube
Whenever I first start my 2012 F-150 with the 5.0, it idles rough and if I step on the gas it acts like either an injector is cutting in and out or it's missing. It doesn't really seem like a miss though, more like an injector/fuel issue. What it could be. If I let it sit and idle it won't go away unless I step on the gas and get it > 2500rpm or so.
Ok, driving home tonight from boarding (semi hard driving) car started running and shifting weird, loss of power, weird shifts in drive. At first red light I could hear a sucking sound when the throttle was pressed,or downshift tranny in manual mode. If you put the car in neutral going down the road and stab the pedal about the third time throttle will maintain 3g rpm. Babied it home, popped the hood blipped the throttle and there's def. a huge sucking sound coming from engine bay. I lightly sprayed intake/vacuum hoses/airbox etc with starting fluid and no change in idle. cant see anything loose. WTH?
View 24 RepliesMy wife started the 2000 Toyota Sienna yesterday morning (temp about 30 degrees Fahrenheit), warmed the engine for about 30 seconds and drove a block to the stop sign. As she made a left hand turn she was in sudden shock to feel that she had no power steering. She still was able to turn and brought the car to a stop. At that point the power steering returned and she continued her mile journey and eventual return without a problem. The power steering fluid reservoir was full.
There was no puddle underneath the car. The serpentine belt was tensioned. I drove the car to the Toyota dealer and presented the problem to a front desk technician. At first he said it could be the power steering pump or rack and pinion steering assembly. When I told him that the power steering was back after she made the return he said he'd never heard of that situation. Further, he said unless the problem was showing itself when we brought the vehicle in a repairman wouldn't be able to diagnose the situation.
My Mk4 2000 Jetta 2.slow has been acting up, a week ago I went to pick something up from my fathers house and a minute later I cam back to start it to only have the idle strange,it as well the throttle being all sorts of weir till it cut out and I had to push it into the drive way. I has the coil pack tested, and it was measured to be right where it needed to buy. I then bought starting fluid and after spraying it into the air intake it started. I had it running till it cut out and had to redo it again. Then when driving home again after putting more in it stopped, I was able to start it again keep moving for another ten second before having it stop again. I am receiving no check engine lights, alternator is good and as wel as the battery.
View 10 RepliesSo I just installed a boost gauge. Vacuum line is running off the fuel pressure regulator. My boost is now not going over 10 psi and the engine is cutting out. It kinda feels like the dv isn't holding psi but just always open. The car is a 05 gli with intake and exhaust.
Also the car seems to be running alright at below 2000 rpm and it just starts to cut out when it should be making boost. And I'm pretty sure this car is reprogrammed because yesterday when I finished the boost gauge install it was running at19 psi.