Air Filter GU

Submitted: Monday, May 16, 2011 at 22:24
ThreadID: 86340 Views:2297 Replies:6 FollowUps:4
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Will a K&N Air filter be ok to be fitted to my 2005 GU with a ZD30 motor. I have heard and read that they can cause some problems with the MAF sensor, is this correct. As any one had any proplems
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Reply By: Member - hutchsky WA - Monday, May 16, 2011 at 22:25

Monday, May 16, 2011 at 22:25
that should be "problems"
AnswerID: 454512

Reply By: Madfisher - Monday, May 16, 2011 at 22:50

Monday, May 16, 2011 at 22:50
Yes that is correct. Remember a lot of the problems with the ZD30 stems from a fouled up MAF sending the wrong signals to the Comp which results in over boosting which means a holed piston. You do not need any more oil on the MAf then what you are already getting from your EGR
Cheers Pete
AnswerID: 454515

Reply By: Notso - Monday, May 16, 2011 at 22:52

Monday, May 16, 2011 at 22:52
The early GUs were sensitive little things and apparently the oil was inclined to foul the MAF sensor.

The fellas on this forum will be able to tell you.

Patrol Forum

AnswerID: 454516

Follow Up By: Member - hutchsky WA - Monday, May 16, 2011 at 22:57

Monday, May 16, 2011 at 22:57
Thanks for that. I also found a heap in the archives about K&N Air Filters, all with simular comments, back to paper Thanks every one
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Reply By: Member - Mark G Gulmarrad - Monday, May 16, 2011 at 23:03

Monday, May 16, 2011 at 23:03
hutchsky

i have been running a Unifilter brand on my 3 ltr for a couple of years now with no dramas. just keep the thing clean,cheers.
AnswerID: 454518

Follow Up By: Robin Miller - Tuesday, May 17, 2011 at 07:35

Tuesday, May 17, 2011 at 07:35
Thats certainly what I have found Mark- the filters are actually better than standard - but require maintenance and not over oiling - its this side of things that let them down
Robin Miller

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Reply By: Member - Bucky - Tuesday, May 17, 2011 at 04:14

Tuesday, May 17, 2011 at 04:14
I pitched my K & N air filter...

More air, more dust, end of story.

Cheers
Bucky
AnswerID: 454524

Follow Up By: Member - Trouper (NSW) - Tuesday, May 17, 2011 at 13:06

Tuesday, May 17, 2011 at 13:06
Bucky, How did you know there was 'more dust' I presume was getting into the engine?

regards............jeff
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Follow Up By: Member - Bucky - Thursday, May 19, 2011 at 05:52

Thursday, May 19, 2011 at 05:52
Jeff
I work on the "what if".

What if I did not apply the oil to the filter properly ?
Then I am in trouble.... dust in motor.

I will only use paper filters, and drop them every 2000km if it's that dusty..
I do not care of the $25 cost. That is a lot cheaper than replacing motors.

Also Dyno tuning my vehicle every 18 months has taught me one thing, and that is unless you are chacing horsepower than keep air cleaners as standard as possible.
Why would I be chasing horsepower where we go with our 4B..
Stay around towns and cities, and you have a different senario, but we live in the bush, go on large Desert and outback trips, and need clean air, not "maybe maybe air".
And most reputable diesal tuning shops will tell you the same thing.

Cheers
Bucky


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Reply By: blown4by - Tuesday, May 17, 2011 at 22:02

Tuesday, May 17, 2011 at 22:02
I have personal knowledge of someone who had the problem you describe with the MAF fouling and getting different air flow readings than the ECM is programmed to receive. Why would you risk your engine to save a few bucks on the genuine filter which is not that expensive and so long as you don't follow others too close on dirt roads gives good life?
AnswerID: 454629

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