Poor pick-up from closed throttle

[Roger Blassberg 0]

Since the VR was sitting around for 2 weeks whilst I was away, it seems that the pick up from closed throttle to small opening has become ragged. The idle is also a bit irregular and surges a little, more than it used to, and often very nearly stalls. Trickling through traffic is marked by lurching from closed to open throttle.

 

It sounds like TPS trouble - am I on the right track here?

 

What are the solutions? Presumably a new TPS ultimately, or is a Basic Settings the first step? Or both? I haven't disconnected the battery or anything to upset the ECU

 

(And compared to the TDI which I hired on holiday, the low revs torque is poo !!)

 

Best wishes

 

RB

[Roger Blassberg 0]

Aw, come on chaps..........

 

Best wishes

 

RB

[dr_mat 0]

ISV?

How did the battery not die after two weeks of inactivity, anyway?? Mine is usually pancake-like after a fortnight..

[Roger Blassberg 0]

A set of new NGK plugs and a quick clean of the ISV, and we're back to normal.

 

Best wishes

 

RB

[Stan 24v 0]

How do you clean the ISV? Where abouts is it in the engine? I started having similar problems today.

 

Cheers

Stan

[h100vw 0]

A good squirt with some brake cleaner. I follow that with some WD. Hunt around the air pipes that bypass the TB.

 

Gavin

[A20 LEE 0]

A set of new NGK plugs and a quick clean of the ISV, and we're back to normal.

 

Best wishes

 

RB

 

did you reset the ECU?

[Roger Blassberg 0]

did you reset the ECU?

No, it didn't seem necessary. It is now running very smoothly; this morning is cold and damp and the performance is especially good.

 

Incidentally, I bought the NGK plugs from http://www.sparkplugs.co.uk a terrific service. They were on my doorstep 18 hours after I ordered them on the net. 6 plugs for about £23 including delivery.

 

Best wishes

 

RB

[Stan 24v 0]

OK, as Im home in deepest darkest Wales :) I dont have a manual to hand. Which is the ISV? Sorry for being a dunce :(

[RW1 0]

It's on the middle back of the engine under the back engine cover between the secondary water pump on the nearside corner back and the throttle body on the off-side. Thick stubbly thing with two rubber air hoses and one electrical connection.