I was running some logs to put into virtual dyno and I noticed that on all three the throttle value angle drops down to 33.7% between 3280 to 3380 rpm. Then above 6000 rpm it start to drop from 99% down to 91%. Even though the accel pedal pos is reading at 99.6. Is this normal??
For these I only logged 054, 115 and 031.
Yesterday I was driving my R spiritedly (the usual...). I accelerated up close to redline and was just about to shift up when something happened in front of me (I forget what, lane change, something like that) so I let the gas pedal snap back up. I didn't touch the brake pedal at all.
What surprised me was the tach fell off almost like the car was dead. My expectation is that momentum and the car being in gear would cause the RPMs to decay slowly, just as my speed decayed.
Do you think the DSG plays a role here? Did it engage the clutch because of the 'panic' lift of the throttle? It didn't put me in an unsafe condition or anything, it just surprised me as I'd not seen it do that before.
A few months ago my teg started idling a bit funny. Its got a chipped ECU and has always idled very low (500 - 750 rpm) once warm.
In the past few months however the revs have started fluctuation or surging. Basically once the engine is warm the revs drop right down to nearly 200 - 250 (the needle actually drops off so its hard to tell ), then the engine bounces back up to around 500 rpm. It then does this non-stop if I leave the throttle alone.
Ive found that resting on the throttle tends to solve the problem as I'm forcing the system to run constantly, however when letting off the throttle (or dropping out of gear), she drops right down gets really ragged then bounces back up to ~500. The drop and surge cycle takes roughly 2 seconds.
Ive taken it to an auto electrician who sat on it for 2 weeks and eventually shrugged his shoulders. I've heard that one factor could be the O2 sensor, however another camp has said ECU and yet another said throttle sensor.
Details of the car are:
94 Honda Integra (GS-R model)
B18C (Gen 1) motor - Enlarged throttle body, Gizmo chipped ECU, better breathing with a pod etc.
Daughters car is throwing this code of 17705 VW (1297) saying it is a "Pressure Drop Between Turbo And Throttle Valve" Car runs rough until about 2500 RPM. Replaced the pressure switch by the intercooler.
View 1 RepliesI have a weird question about the nice gti steering wheel. I noticed it some times ago on my old 2008 rabbit too and didnt really cared much when I saw that on the steering wheel of the 2010 gti. Did you noticed that the SW angle isnt good from a top view, I means, when u look at it carefully, did you noticed that the SW is more prononced to the right side, it easier to notice it when u look from a top perspective view of the SW. When u use 2-hands on the SW, u can notice that your left-hand is closer of you that the right-hand. Why Volks designed it like that way?
View 3 RepliesI just locked out the cam phasers on a 2005 f150 with a 5.4. It now idles pretty rough. If I blip the throttle the revs will rise and then drop again, and it barely catches in time to prevent a stall. If I continue to tease it this way I can usually get it to stall. I'm getting no CELs or anything, but I intermittently will get a P035x code (it seemed to rove. I've gotten cylinder 1, 4, 6, but not consistently.). I have chased those around by swapping coils, checking/cleaning the connectors, etc.
I am kind of thinking that these codes are a symptom of my idle issues, and not the actual problem. What could I have done wrong? Could it be a vac issue? I had basically the entire ECU harness and all the vac lines disconnected to do the job, but as far as I can tell everything has been reconnected to the correct locations. I did have an SCT tune done to remove the phasers in the ECU. I installed it and still have the issue, so for now I am on the stock tune just to eliminate any variables.
Could my tune be the issue? Is this how you would expect the engine to behave with locked out phasers and no corresponding ECU tune?
2012 GTI. DSG My airbag was blows, so I replaced it. Now im getting the following code.
18036 - Powertrain Data Bus
P1628 - 000 - Missing Message from Steering Angle Sensor
Can the sensor go bad after the airbag was blown? All the steering wheel controls still work.
For about the last two months I've noticed a significant drop in my gas mileage, I usually average anywhere from 20-26mpg depending how I drive, but lately even if I am cruising with the windows up no ac nothing I can't get better than about 18mpg.
Car has about 26xxx miles, evoms intake (which I cleaned out the filter thinking that may have been it) EJ exhaust and just got REVO flashed, but my mileage has been suffering prior to that.
I'm going to the dealer tomorrow for an oil change and spark plug replacement thinking maybe thats it, I've already had the recall done, and always use 91 octane (social area) what it may be?
I am trying to take my stock headers and flex pipe out, I have removed the all the bolts but cant seem to get the pipes out between small space between the subframe and the firewall. how to drop the subframe to get these pipes out?
View 2 RepliesWhen idle, and especially when cold, my R engine tends to do some popping, I can see the RPM drop slightly when this happens and can also hear and feel it in the car and from the engine and exhaust. This only happens when idle, I have no other issues, no drop in performance and no CEL.
It actually has done this for a while now but barely noticeable. Now since 2 weeks it has gone worse to the level of being annoying. What this may be ? Injectors maybe ?
Just noticed today that I have a slight drop in boost. Normal boost is 1.5 bar but today it is running slightly lower boost and does not have the same pull through all the gears.
2001 mk4 1.9 tdi golf
So I got my stage one flash yesterday and I noticed 5th gear slipping already. I don't plan on getting a k04 upgrade, maybe stage 2 down the road. so I am looking into the drop in clutches, preferably this one [URL] .... I am just trying to find out some reviews from people who are currently running drop in clutches and the issues that they have come across.
View 8 RepliesI'm going to be putting on some H&R street coils and I want to do just enough of a drop so I get the best performance and I'm wondering how big of a drop that would be so that it doesn't ruin the turning and handling
View 6 RepliesDriving the other night I realized that my lights aren't throwing enough distance. Is there some way I can angle them up to cast further in front of the car?
View 2 RepliesSo yesterday evening I was driving home and I noticed this clicking sound like a relay clicking on and off every time my RPMs go above 3k then drop below 2500. I am at 9Kish on the OD so I am just gonna let them know at the 10K oil change. Whatever it is or does, it isn't affecting the cars drive-ability one bit.
View 4 RepliesI just picked up my new R (Rising Blue 2 Door w/ S-Roof & Nav) yesterday and love it, except for one thing. When accelerating and changing up through the gears, the revs seem very slow to drop after lifting off the gas and dipping the clutch to select the next gear. It is like there is a delay between me lifting off and the instruction getting to the engine.
View 6 RepliesI have had my golf R for 7 months now and ever sense I got tuned I have had this little issue. Besides this the car is amazing but ever now and then the car while coming to a stop and put it in natural to come to a stop the idle will go to 500 then come back up to 1200 then rest at 800. I'm getting my PCV replaced tomorrow. I'm um stage 2 tune fully loaded with Bsh intake full 3" exhaust.
View 4 RepliesSo I am in the process of removing my front silver grill to paint it and was wondering do I need to drop the whole bumper to get it off??
View 16 RepliesSo I moved my Walbro to the engine bay and reran my wires. Now I couldn't find the most detailed DIY to use for reference but I ran a 20A circuit breaker from terminal 75x under the dash. From there an inline relay that I believe is hooked up correctly.
So I noticed my fuel pump wasn't running while the car is running. It wasn't even priming so I started checking connections and what not. I then noticed that when my power wire is connected to the pump I only read about 4V on the pump. If I disconnect the line and test it with no load applied I get 12-13V steady.
I thought maybe my pump had gone bad but if I apply 12v straight to it it runs just fine.
So my question is WTF!? Electronically this doesn't make sense. Physically it makes no sense. I moved the wires from one side of the car to the other. Nothing changed. Why would I be losing so much voltage with the load applied?
So this morning I was in rush hour traffic, stopped at a traffic light when all of a sudden, I get the bong that signals "refuel" I have just under 1/2 tank, though. Glanced down at the fuel gauge to see it drop down to E and then a few moments later back up to just under 1/2. All the will car was running and seemed fine otherwise. The refuel sign stayed on though ...... even when switched off (while MFD was still on) Restarted the car and refuel message was no longer displayed. What could this be? fuel pump on the way out?
View 24 RepliesJust replaced the steering angle sensor on my Passat. Had a persistent fault that was causing a parking break warning light. I took pictures as I was putting it back together. [URL] .....
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