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Author Topic: can anyone please help vr6 bad running  (Read 1012 times)

Offline steelhorse

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can anyone please help vr6 bad running
« on: 06 February 2011, 21:19 »
revs free and clean when staionary when driven it surges really bad and i have a massive lack of power till 3 - 31/5k then goes ok accept in 4th and 5th wont pull past 5 1/2k,i have changed plugs coil pack leads maf sensor ran injector cleaner through and its still the same it does seem a bit lumpy too
have also done headgasket and since compression tested it all 8 1/2 except one but it was still 7  :sad: :sad: :sad: :sad: :sad: :sad: :sad: :sad: :sad: :sad:
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Offline AudiA8Quattro

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Re: can anyone please help vr6 bad running
« Reply #1 on: 06 February 2011, 22:15 »
Was the timing set up correctly when the headgasket was changed?
Tried running VAG com?
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Offline steelhorse

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Re: can anyone please help vr6 bad running
« Reply #2 on: 07 February 2011, 07:42 »
timming is set ok, its on coil pack so that's ok, it would not run like it does if out by a link when its stationary, its been pluged in but going get it done again as was not impressed with last one basically told me to get another maf sensor which i did and that didnt work
« Last Edit: 07 February 2011, 07:45 by steelhorse »
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Offline steelhorse

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Re: can anyone please help vr6 bad running
« Reply #3 on: 07 February 2011, 17:28 »
is there any way of checking maf sensor
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Offline trackday

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Re: can anyone please help vr6 bad running
« Reply #4 on: 07 February 2011, 21:32 »
Quote from: steelhorse on 07 February 2011, 17:28
is there any way of checking maf sensor

unplug it and take it for a run as the ecu runs it at a default value if its unplugged, so if it runs better then 99 times it gonna be the sensor.
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Offline rubjonny

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Re: can anyone please help vr6 bad running
« Reply #5 on: 08 February 2011, 10:13 »
can also do the same test for lambda, if it runs better with it unplugged you need a new one
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Offline Cable

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Re: can anyone please help vr6 bad running
« Reply #6 on: 08 February 2011, 10:50 »
Try coil pack again, had the same problem last year swap it for a known good one. There a big problem on vr6's.

Been through 4 in 3 months.
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Offline steelhorse

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Re: can anyone please help vr6 bad running
« Reply #7 on: 08 February 2011, 19:09 »
hi had it pluged in today came back with 12 codes all said earth ground intermitant problems going look at engine loom 2moz
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