surging

Hello guys i have turbo surging/fluctuation problem with my 1.8t bam engine. After i rebuild my k04 023 turbo with new wastegate and new internals. When i got for WOT my boost goes to 1.4bar and then drops to 0.5bar and goes to 1.4bar again and keeps doing it every second/half-second. Tried...

Hello Guys i hope you all doing well. I have a 2016 Seat leon FR+ MK3 specifically the 2.0 TDI 150hp DSG6 (110KW TDI CR) (engine code CRMB). The engine start pulsing on idle only after the car warms up (not noticeable on RPM meter but you can defenetly hear it and feel it when you pay attention...

Hi my 2003 seat leon 1.820v t has developed a flat spot/ surge at higher revs/ higher gears, more noticeable over 50mph it's like your outing your foot on and of the throttle constantly. Had a stage I remap a few months ago and fitted a milltec cat back system all fine, then fitted a forge...

Hey guys, recently got a '07 FR TDI, 30000 miles with FSH. I've noticed one problem with it though which is putting a damper on the driving experience. When i'm driving and come off the throttle, then come back on the throttle gently the car surges as if i'm in too high a gear. It only ever...

I`ve had my k03s running on a revo stg2 for well over a year now and ever since having the k03s fitted its pulled back on WOT from low down and surged like crazy, it got to a point where it was awful to drive and felt like it took ages to catch up with itself once it started pulling back, Bill...

when i come out to start my car in the morning and maybe during the day my car seems to lack power ie as if there is no turbo then when i pull over and start the engine again its fine it has been mapped and there is a 17705 code being thrown up can someone point me in the right direction many...

I have a 1.8T Cupra and its always felt that I haven't really got 180bhp. I noticed on hard acceleration the power seems to surge then hold back then surge every one or 2 seconds. Whats the most likely suspect, sticking wastegate ? What boost pressure should it be running ? Thanks

Hi all, I was wondering if any of you guys noticed the same engine behaviour as I do with my 130tdi cordoba 2006 14k miles. With the car in neutral, very slowly increase the revs, at about 2000rpm i can hear the turbo whistling when it gets to about 2100rpm with the foot held steady the...

Hi All My 2001 Cupra has been in the wars recently, at first it would intermittently idle poorly and generally feel flat when warming up which turned out to be the coolant temp sensor. This has been replaced and those symptoms have mostly gone away. The problem is, Im still having engine...

just had my car remmaped at p-torque and it seems like the dv is now shot, the power is surging through the revs and now feels like i am lifting my foot on and off the accelerator. I dont know what this sounds like to you but i have spoken with the guy from p-torque and apparently the dv has...

Hi All In the past few weeks my car has developed an intemittent fault which I hope some of you may be able to point me in the right direction with. Sometimes when starting the car from cold, the engine sounds like its running on 3 cylinders and so shakes like mad rattling the exhaust etc...

Hi Guys, I am all set for some action on the track at Trax this weekend and low and behold, two days before the off it goes wrong. had it on VAGCOM and came up with the following: 16500 - Engine Coolant Temp Sensor (G62): Implausible Signal 16518 - Oxygen (Lambda) Sensor B1 S1: No Activty...

Guys, I have recently remapped my engine with OBDTuning software and installed an open filter from Simota, the guys from my tuning workshop believe that it should gain around 225HP to my LeonFR (2005). Now I have an interesting problem, turbo surging when surfing on static revs, pay...

i fitted a Forge TIP a few weeks back and eversince then it has been "surging" in 5th. It seems to come on to boost and then you can here it kind of dump slightly and then it will come back on full boost after about 10secs, Is it going in to limp mode? Would a new n75/n249 bypass...

I've posted about this before and thought I'd solved the problem replacing the N75 valve but I'm seeing the same thing again. Basically, under high load, i.e foot to the floor in a high gear, my boost rises quickly to just over 20psi, drops to 18 and kinda bounces between 18-20 for a moment...

Hi all, Getting a very slight surging when the car is cold, for about 2 minutes after start up if I hold the pedal constant, which I never had in my cupra, anyone else get this surging on start up ? Also my raised idling +- 3 minutes, when the car has just been started seems to lasted much...

Guys, I've been suffering with a random and very brief surge that I've noticed mainly in 2nd but occasionally in 3rd that happens anywhere from just below 2K to just below 3K since I had a Revo trial last year. It also seems to be then not on full throttle. From reading around it...

Had this problem since winter and now its doing my head in. The car surges between 900-1500rpm when idling, sounds like it’s going to drive off by itself, I have tried cleaning the idle control valve and still had the problem even swapped it with my mates and my car still surged where his...

Sat in traffic last night, clutch pedal fully depressed and in 1st gear, handbrake on waiting to move, nothing unusual there! Then all of a sudden the revs increased slightly (note right foot off gas pedal) car tried to creep forward and then it returned to idle, this happenned approx 5 times...

Sorry if this is repeating an existing thread - I tried searching for it but couldn't find the same problem on here already. I've had a Leon 1.6S for 5 months. About 3 months ago we started having intermittent problems of the revs surging when the clutch was pressed. It soared up to 4500rpm...