Search found 268 matches

by bvs
Sat Apr 06, 2019 11:18 am
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Loss of power low mpg, after 20 miles of driving
Replies: 10
Views: 595

Re: Loss of power low mpg, after 20 miles of driving

Might be worth checking the Hot Air Flap in the Engine Cover,controlled by a waxstat - they tend to fail 'Open' which would give permanent Hot Intake Air,we took our AUB engine 1.4 16v (almost identical to BBY) and monitored the Intake temperature on the 'Torque' APP - even with our Air Flap manuall...
by bvs
Sat Apr 06, 2019 10:19 am
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Loss of power low mpg, after 20 miles of driving
Replies: 10
Views: 595

Re: Loss of power low mpg, after 20 miles of driving

Also perhaps check for binding brakes ?
by bvs
Sat Apr 06, 2019 10:18 am
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Loss of power low mpg, after 20 miles of driving
Replies: 10
Views: 595

Re: Loss of power low mpg, after 20 miles of driving

Might also be an idea to take a look at all the vacuum hoses in the engine bay for any obvious splits/age deterioration.
by bvs
Tue Apr 02, 2019 1:07 pm
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Airbox engine cover flap valve (engine pinking when hot)
Replies: 116
Views: 10553

Re: Airbox engine cover flap valve (engine pinking when hot)

Tried out my new 'Torque' app/OBD dongle thingy today and we went for a short (14 mile) drive to get some real time engine parameters - Engine Intake Temp started off at +9 deg c (agreeing with ambient) but was up to + 35 deg c at the halfway point - by the time we got back into town it was reading ...
by bvs
Tue Apr 02, 2019 8:12 am
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Switched from Fuchs 5W40 to Shell Helix 5W40 1.4 BBY 2002
Replies: 2
Views: 261

Re: Switched from Fuchs 5W40 to Shell Helix 5W40 1.4 BBY 2002

Sounds good LP - ours still running happily on ECP TripleQX 5w40.
by bvs
Mon Apr 01, 2019 10:29 pm
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: 9n bby auto . (Looking to increase performance and acceleration)
Replies: 4
Views: 375

Re: 9n bby auto . (Looking to increase performance and acceleration)

When we first got our 1.4 16v (AUB) Polo (manual) it was really sluggish,but gradually has improved over the last 4 years by doing various little jobs on the beast. Ours is the 100HP version but when I also looked at the power curve (graph) for this engine I realised that one has to rev it to get ma...
by bvs
Sat Mar 09, 2019 10:45 am
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: polo juddering again
Replies: 3
Views: 461

Re: polo juddering again

Which engine type/code ?
by bvs
Wed Mar 06, 2019 3:37 pm
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Airbox engine cover flap valve (engine pinking when hot)
Replies: 116
Views: 10553

Re: Airbox engine cover flap valve (engine pinking when hot)

Yes I agree with RUM - it will be a mix of Hot/Cold air but I would not like to guess the mix ratio :mrgreen: Should be easy enough to fit a flap/blanking plate to block off the hot air path. Wino on the skoda forum reckoned he got improved fuel consumption with cold air,we have not done enough mile...
by bvs
Wed Mar 06, 2019 11:17 am
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Airbox engine cover flap valve (engine pinking when hot)
Replies: 116
Views: 10553

Re: Airbox engine cover flap valve (engine pinking when hot)

Polo still seems to be happy with permanent cold intake air in varying weather conditions,seems to have almost got rid of the last vestige of 'hesitation'/flat spot when moving the accelerator pedal from 'off' to 'on' during gear changing and whilst accelerating away from a 'slow down'/coasting. We ...
by bvs
Sat Mar 02, 2019 3:04 pm
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Airbox engine cover flap valve (engine pinking when hot)
Replies: 116
Views: 10553

Re: Airbox engine cover flap valve (engine pinking when hot)

Another 70 mile return trip yesterday,the polo seems to have a little more 'grunt' at lowish RPM and the engine seems a little smoother in its power delivery - so we are happy with Cold Intake Air at the moment 8)
by bvs
Wed Feb 27, 2019 9:51 pm
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Airbox engine cover flap valve (engine pinking when hot)
Replies: 116
Views: 10553

Re: Airbox engine cover flap valve (engine pinking when hot)

All went OK today - the overnight forecast was +6c but as usual it was colder than forecast (the local weather station where they get the readings from is Strathallan Airfield - 6 miles away) and we set off for the Gliding Club at 0730 with the ambient temperature 0 deg c.On the 35 mile drive the am...
by bvs
Tue Feb 26, 2019 2:22 pm
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Airbox engine cover flap valve (engine pinking when hot)
Replies: 116
Views: 10553

Re: Airbox engine cover flap valve (engine pinking when hot)

Yes absolutely RUM - if I had wanted to replace the capsule then I would have had to remove the torx screws thus gaining access to the capsule housing/bracket. But because I just did the 'free' woodscrew modification then I only had to remove the air filter to gain access (I was changing the air fil...
by bvs
Tue Feb 26, 2019 11:21 am
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Airbox engine cover flap valve (engine pinking when hot)
Replies: 116
Views: 10553

Re: Airbox engine cover flap valve (engine pinking when hot)

Just to clarify that we only had to remove the (11 ?) normal cross head air filter access screws,no need to touch the torx type screws attaching the air intake 'trumpet/duct' to the front edge of the engine cover.
by bvs
Tue Feb 26, 2019 11:18 am
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Airbox engine cover flap valve (engine pinking when hot)
Replies: 116
Views: 10553

Re: Airbox engine cover flap valve (engine pinking when hot)

That assembly looks different to my BBY. Sorry LP - yes this pic was taken on the inside of an engine cover of a different engine code - with the air filter cover + filter removed (Fabia 1.2 I think). It is very similar though to the AUB engine cover/air flap design,the only real difference on our ...
by bvs
Mon Feb 25, 2019 5:19 pm
Forum: MK6 (9N) Polo - Years 2002-2005
Topic: Airbox engine cover flap valve (engine pinking when hot)
Replies: 116
Views: 10553

Re: Airbox engine cover flap valve (engine pinking when hot)

I contacted Wino (Pete) on briskoda and he supplied details about the Volvo part he used to fix the Air Flap capsule. The capsule part number is Wahler 1266826 But he also said that he would not bother doing it again and the alternative is to push the capsule right 'in' with a screwdriver and then f...