random hesitation under load OBD2...

[cheekS]

Hey everyone.

I would like some help diagnosing a on / off hesitating in any gear I get when flooring it and even down to 35% throttle.
full throttle includes partial sluggish running, power loss mid range(2k -4.5k rpm), in any gear (usually 2-5). It revs just fine though, the idle is smooth, and also starts fine hot or cold. I did recently run out of gas, not sure if its a related to that though. I read CPS, TPS, plugs, wires , coil pack, any assistance or warnings would be appreciated.

[adduncan101]

Same here brother I just bought new wires. got a new coil pack a couple weeks ago. I'm gonna check out the plugs and fuel injectors next

[boardmaster272]

check the fuel filter and intank fuel pump

[MaineVWvr6]

I am having very similar problem... Though yours sounds more fuel related running out of fuel could get the crap that settles in your tank migrated into your pump or filter and clogged it or injectors also..would start easy first fuel filter, move on to clean injectors, seee how goes that

In addition mine will accelerate fine wot untill around 4-5 k then sounds like it flood s itself out, so would be lack of air? Maybe shop towel sucked in intake could cause this? Started happening after I did my intake cleaning.

Or maybe my new pcv on the way will fix

[one_eight_turbo]

mine does the same when i punch it on small bumps or try to pop the clutch at dead stop from 3.5k rpm

[MaineVWvr6]

Hey everyone.

I would like some help diagnosing a on / off hesitating in any gear I get when flooring it and even down to 35% throttle.
full throttle includes partial sluggish running, power loss mid range(2k -4.5k rpm), in any gear (usually 2-5). It revs just fine though, the idle is smooth, and also starts fine hot or cold. I did recently run out of gas, not sure if its a related to that though. I read CPS, TPS, plugs, wires , coil pack, any assistance or warnings would be appreciated.

Do you have mil light on?
What codes?

[cheekS]

any updates from anyone , i replaced my engine speed sensor, and it fixed it for a couple days , now its doing the same hesitating/ random bogging.....

[cheekS]

and the MAF is reading high "at idle" since it got VAG'd last time.

[mike_VR]

bump

[Vr6CrEEpA]

fuel pump! My car had that problem. But I might not be right.

[cgodshall]

its doing the same hesitating/ random bogging.....

im having the same problem with my 96 vr, except my car seems to be more "progressed" into its problem. i will try to keep my story short for you. a couple of months ago i was just driving my car and it suddenly and randomly hesitated causing my car to slow down just for a moment. i thought maybe it was a clutch but i had no problems after that for a week or two. it only happened a couple times between then and now.
last week i was driving to work and the same thing occurred, i gave it more throttle hoping to keep it from bogging, but the more throttle i gave it the slower it went. so i down shifted into 3rd and brought it back to normal.
A few hours later i was driving home and the same thing happened twice, except the second time it happened i had to pull over because my car stalled. i was able to get it running after a short battle of starting and stalling. i was only about a mile from home but it was tough trying to get it home.
i was going up a slight incline in 2nd and 3rd gear in the powerband (starting between 3-4000 rpm) and my car was going slower and slower completely losing power.
SORRY THIS IS TURNING OUT LONGER THAN I THOUGHT, so finally i got the chance to look at it, pulled a few sensors as it was running nothing changed except when i pulled the blue connector in the thermostat housing (Coolant temp. sensor). before pulling the temp sensor it was idling rough, shaking and wanting to stall out.
i noticed that the ground wire on the connector was exposed which made sense why i had a fault code for that sensor (ive had that code for a long time). i went to the junk yard and got an engine harness, replaced the engine harness with a good one and im still having the problem.

so in conclusion i would try unplugging the blue sensor thats in the thermostat housing and see what that does for you. i wish i could tell you what i did to fix it but im a little lost myself. if anyone finds out let me know and if i end up fixing it i will help out. and again im sorry for the long post but this car is making me crazy.

[jarrodmcmillian]

I'm having the same issue after I picked up my car from the shipper yesterday. Worst part was I had a 600 mile road trip after a 10 hour flight, so having the issue sucks! I unplugged the connector going to the top of the throttle body and it has fixed the issue. I am assuming that is a throttle position sensor? Not really sure, the only dealership is 3 hours away so I can't just run in and ask. Anybody have any insight?

[MaineVWvr6]

Yes into the tbody would be your TPS, i changed my whole tbody and bought the PCV delete from 42DD and my problem went away... also an improper reading from your MAF can be a problem also try it with it unplugged or completely reset you Computer and try it again...



yep yep yep I NEED A OIL PAN FOR MK3 VR6 please help me