Passat (B5) :: Fuel Dump At Higher RPMs
Jul 14, 2012
I just installed a gt2871 turbo and I'm experiencing fuel dump at higher rpms. It's just like it dies at the top. My buddy said I probably need new injectors.
View 2 RepliesI just installed a gt2871 turbo and I'm experiencing fuel dump at higher rpms. It's just like it dies at the top. My buddy said I probably need new injectors.
View 2 Repliesso there is no visible signs of a boost leak and my boost gauge shows normal vacuum at idle indicating its not a vacuum leak, yet in the higher rpms im loosing boost.
View 22 RepliesOver the past couple of days, my wife and I have been noticing that our B6 (2.0 Auto/Tip) is shifting at around 4000 rpms. I'll probably be taking it in to have the dealer look into it but wanted to see if the community has experienced anything similar to the issue at hand.
It shifts (Appox):
1st into 2nd - 3200 rpms
2nd into 3rd - 3800 - 4200 rpms
3rd into 4th - 3500 rpms
4th into 5th - 3000 rpms
5th into 6th - 2500 rpms
Notes:
* the appox amounts above are at regular driving acceleration.
* while in Drive - "D" mode
* used to shift into all gears between 2500-2900 rpms
* doesn't shift nearly as smooth as in the past
Is it OK to slip into "Sport" from "Drive" while Driving? How about slipping into Tiptronic while using "D" or "S"?
[URL]......
Ok, I have a 95 F150 5.0. It's sat for 6 months with the engine taken apart. I just finished putting everything back together with a new alternator. Well, I pulled a bone-head move and forgot to connect the harness when I fired the truck up. Other than not charging though, it ran fine. When I connected the harness, it began to chirp and shudder at low RPMs and squeal and vibrate at higher RPMs and it over heated VERY QUICKLY.
So hot the case was too hot to touch and the pulley smoked the belt. The engine didn't even have time to get up to operating temperature. I've had the alternator replaced twice, and this last one tested good putting out 14.5 volts. The work I did on the engine was to replace the valve springs, install a direct drive timing gear, replace a spun harmonic balancer, bypass the smog pump because it froze up, new distributor, a new ECU and O2 sensor.
Sometimes I will stop at a light and my idling rpm will go from 600 (usual rate she idles at) to about 950. While this may seem inconsequential in the grand scheme of things, it's noticeable enough that it seems like the car wants to go. It'll lead me to depress the brake more. You can also hear the higher pitch of the faster turning engine (it is a 50% increase in speed). This will happen at random times so I have not been able to pinpoint if it is caused by a particular driving style. ECM for this?
View 7 Replies2.0T's having problems with fuel rails or fuel pump at 30,000 miles using GIAC chip. Just got back from induktion motorsports with a friend. He was having problems with fuel cut at about 4500 rpms. Holds boost up to 22lbs for some reason and then just drops down holding no boost at certain rpms between 5th and 6th gear getting on it. Car doesn't go past 80 mph until the turbo comes back (When it wants to) guys up at induktion said its prob the fuel rail or pump. They ran three different tests on the car and car still ran the same using the chip program (93 octane) and stock mode.
View 2 RepliesI have been looking around for some boost information. I have come across a few threads that have boost graphs, but the images are no longer available. I have tried to get a hold of some of the posters, but no luck.
I only recently hooked up a boost gauge and have been monitoring my boost more. I had a slight feeling before I hooked it up that I was losing a little boost at higher rpms. Between 4500-5000 my boost drops from 18 to 15 and then from 5000-6000 it drops to about 10. I know it's sometimes normal for boost to drop at top end, but I'm not quite certain it's supposed to be that much.
I installed the Spulen Boost Pipe Kit hoping it may make some type of difference, but it's the same. What it might be? I have checked all my pipes as best as possible, but couldn't find anything.
I noticed the RPM's are higher than they used to be when accelerating slowly.
My car is an awd hybrid 600h with a CVT (110.000 miles) .. Do i have to check the transmission fluid? How?
Is my clutch or whatever it's called dying?
My car is still under warranty, but I'm not sure if wearable parts are included.
Recently bought a MKV R32. Already had a magnaflow cbe, k&n panel filter, and some emissions stuff taken out from under the hood. not sure if it has been flashed, waiting to get a vagcom. think it is pretty stock other than that. My problem is about 2 weeks after I got it, I started to notice an exhaust leak or vacuum leak or both at higher RPMs, like above 3 or 4k it starts. The exhaust has a nice deep rumble in normal driving but when the leak noises start that is all you hear, the exhaust note disappears completely. I have tightened the clamps on the cbe and still does it. Not sure what to look for.
View 3 RepliesExperienced a ticking noise when at WOT with the 4.2 V8 engine? When cruising around the engine sounds fine, but when floored the engine (i believe) is ticking at higher rpms. Hard to believe its the engine, only 24k miles on it, with regularly changed oil. Sounds like either detonation or valve interference.
View 10 RepliesI have a 2004 Jetta 1.8t. 160k miles. Bought it recently. It's been overheating on me. Mainly on the freeway while having the RPMs higher than the small streets. I don't see any leaks. I'm not losing any coolant. But I do smell burning coolant. I don't see anything smoking though. I changed out the coolant temp sensor. I have a thermostat but haven't gotten to it yet. Just wanted other opinions before moving on. There is some sort of little motor on the radiator with some coolant hose connected to it. When turning off the car, it stays on and buzzes for a good 10-15 minutes before stopping. I'm not sure if that has anything to do with it. I don't even know what that thing is or called.
View 14 RepliesMy ac seems to get cooler at higher rpms. I looked online and it appears to be the orifice tube...
View 3 RepliesI got a 99 jeep sport straight 6. AC works fine after topping off. Pressure 32 l/s 210 h/s could still be a little low but air is very cold. Problem is while drive compressor shuts off. I thought it may have been too low causing it to kick off. while in park & holding rpm's at 2k everything seem to be ok.
It cycled on/off at times as normal but then compressor stopped & didn't come on again. shut the engine off checked the fuses restarted & the air is back running like normal?? so whats going on do I have a bad l/pressure switch or may be a relay sticking??while at 2k rpm's l/side 25 h/side 250 then at idle 32 & 210. I don't think its low enough to cause the shut off but.....
2013 Elantra GT ... Odd sound when shifts at higher RPMs. Like a chirp, or a tiny blow off valve from an old home turboed civic. Some sort of leak? When the engine is under load, it sounds like I may have some sort of minor exhaust leak, though that is nowhere near audible in the video. Very curious as to what this is.
[URL] ...
Listen right at 0:14 when it shifts.
So I have a 2005 Hyundai Elantra, it is a manual transmission. I was having problems with the rpm's going higher than normal at random times while driving, then I noticed that the fluid in the clutch fluid reservoir was low. I determined that to be caused by a bad clutch slave cylinder that was leaking fluid. So I replaced the slave cylinder and that seemed to fix the problem, but now I am noticing that the car lacks power when I'm going up any sort of hill or trying to accelerate faster than normal.
When going up a hill the rpm's will go up and I have a hard time maintaining my speed. When trying to accelerate fast, as in pulling out in front of someone or similar situations, the car seems sluggish and it seems like I need to shift because the rpm's are high but I'm not going fast enough yet for the next gear.
This sounds like it would be some sort of problem-related to the clutch going bad or could the leaking slave cylinder have damaged the clutch. Or does this sound like more of a different problem, maybe something with a fuel filter or something?
I have a 2006 Ford F150, king ranch, 4x4, super crew 135k miles. I bought the truck and shortly after noticed the miss under a load at 40-60 mph while in OD, or at higher RPMs at WOT, but never a CEL. Well 3 months went by and I couldn't take it anymore so with lots of research I decided to change the plugs. Ran seafoam through 2 tanks of fuel prior to this job to break up the carbon in hopes of none of the plugs breaking.
All 8 plugs came out with no issue and I replaced them with the Motocraft SP 515s (old ones were very nasty and brittle, most likely the original). I put copper anti seize on the end that goes through the channel in the head, however none got on the end near the electrode, and also on the threads. Put it all back together and it had the worse misfire an pretty much not drivable....flashing CEL and codes p0308, p0355, p0356. So I decided to buy 8 new coils as well, got all 8 of them on and now the truck is drivable but the miss is still there (no CEL).
Feels like maybe just one cylinder and I believe I got it pin pointed to cylinder 8. I put a vacuum gauge on it and unplugged the injectors 1 at a time and cylinder 8 is the only one that there is no change while unplugged. So I switched out the coil thinking maybe I got a bad one, still does it. My COP electrical plug has 12v Constant and also confirmed with an led it is getting signal. The injector is ticking or pulsing as i confirmed with a mechanic stethoscope. What am I missing????? Today when I get off I plan pulling the spark plug, checking for carbon tracking, check compression, check actual visual spark, and pull and clean the injector.
Problems overheating. Have replaced thermostat and the housing for it...fan clutch and water pump. Its still overheating especially going uphill when RPM's are higher. How can I check to see if there is a radiator blockage?
View 1 Replies1992 Buick Park Avenue - Base
This morning my serpentine belt tore and slapped everything for a few minutes and I'll be receiving a new one tomorrow or the day after, but that's not the trouble, I just feel it's related as that is when this problem started. In the last 2 months I have replaced the Cam sensor and interrupter, timing chain and tensioner were in good shape. replaced the ICM, coils, wires, and plugs and used dielectric grease on all connectors, including the cam sensor and new crank sensor, also replaced the harmonic balancer, fuel pump, filter, pressure regulator, PCV valve, alternator, and a new pigtail is coming for the cam sensor as some of the wires had bare spots. This plug is currently taped and shoved out of the way, not plugged in, and has been for a week, so I doubt it's relevant.
This issue is : The car fires up fine, but has great difficulty idling and stalls too often to drive after a few minutes. At higher RPMs it only misses or misfires occasionally. With the serpentine belt off, the car idles much smoother. Tonight I plan to try tightening the harmonic balancer again, running the with MAP sensor unplugged, again with the exhaust O2 sensor removed.
When I first got my car it had a flat spot while driving hard at higher rpms. Almost as if something were actually holding the car back, it would pull nice up to that spot and then just almost die off. I eventually got unitronic flash and it seemed better but it was still doing it. Later companies started coming out with dsg flashes and this seemed to be the remedy but I now have hpa dsg flash and it still does it from time to to time. Could this be a faulty coilpack, or an issue with the intake manifold valve that changes over at higher rpms?
View 4 RepliesHad a quick question on if there is a right or wrong way to break in a brand new engine?
I have a 2011 Corolla S, Manual Transmission...Since ive got it i shift gears at 3,000 RPM's, I have a buddy who shifts every 3,500 RPM's. Is There any benefits to shifting at higher RPM's during the break in of the engine?
So my girlfriend has an 04 elantra 2.0... the car will be running fine but then after so long of driving(maybe 15, 20mins) itll start acting strange..
It will hesitate to accelerate and shift hard and at higher rpms. Then at cruising speed it will turn off instantly(no sputter, hesitation, almost as if you just turned the key off). Seconds later the engine will come back but the gauges die and the engine will remain on.
At that point i pulled over and as i was on the brakes the car died when I came to a complete stop. Once the car completely turned off it would not start back up. However jump starting it got it going. The car is not throwing any codes.