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Sep 27, 2009, 06:49 PM
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#1
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Evolving Member
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Join Date: Jun 2008
Location: Home
Posts: 165
Drives: 2008 WW X MR: 325tq, 305whp, Rota Grids, Perrin shorty ant., Cobb F+B sway bars, HKS drop-in (3 layer-dry), AMS twin tip catback exhaust, UPIC, HBspeed tune
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MAFs gone bad!
I have now had to change out 2 MAF sensors when going WOT, pedal to the metal, only to have both times "service required" main message and "check engine soon" lights come up. Code P0102. Changed out the MAF sensor, all is well both times!
My fuel pump relay is fine, I have a HKS drop in that I think may be the problem: have since ordered a Cosworth and am currently using the OEM paper filter.
Can my tune be an issue? Need to recheck with HBSpeed? Any thoughts as to whats up?
Thanks
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Sep 27, 2009, 08:39 PM
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#2
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Evolving Member
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Location: St. Robert, MO
Posts: 287
Drives: 2008 RR Evo X
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Quote:
Originally Posted by navidf
I have now had to change out 2 MAF sensors when going WOT, pedal to the metal, only to have both times "service required" main message and "check engine soon" lights come up. Code P0102. Changed out the MAF sensor, all is well both times!
My fuel pump relay is fine, I have a HKS drop in that I think may be the problem: have since ordered a Cosworth and am currently using the OEM paper filter.
Can my tune be an issue? Need to recheck with HBSpeed? Any thoughts as to whats up?
Thanks
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Wash the HKS drop in under warm water and let it dry....some of the filter ship with some kind of oil on it that can muck up the maf.
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Sep 27, 2009, 08:55 PM
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#3
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Location: Ft. Sill
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Drives: GG X
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I too also popped 2 MAF's and coincidentally was running the HKS SuperHybrid drop in as well. Just as the above poster stated I washed and dried the filter throughly and no more MAF failure. Did your dealership replace yours under warranty? Just curious...
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Last edited by Codevo; Sep 27, 2009 at 09:00 PM.
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Sep 28, 2009, 09:28 PM
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#4
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Evolving Member
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Join Date: Jun 2008
Location: Home
Posts: 165
Drives: 2008 WW X MR: 325tq, 305whp, Rota Grids, Perrin shorty ant., Cobb F+B sway bars, HKS drop-in (3 layer-dry), AMS twin tip catback exhaust, UPIC, HBspeed tune
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No 
Can a tune mess up a MAF sensor?
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Sep 28, 2009, 10:06 PM
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#5
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Account Disabled
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Join Date: Aug 2009
Location: MD/D.C.
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Drives: CZ4A
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Hmm... been using the HKS filter for almost a year and no MAF issues.
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Sep 28, 2009, 10:20 PM
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#6
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Evolving Member
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Location: St. Robert, MO
Posts: 287
Drives: 2008 RR Evo X
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Quote:
Originally Posted by finnns2000
Hmm... been using the HKS filter for almost a year and no MAF issues.
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like i said some people have it some people don't
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Sep 29, 2009, 03:19 PM
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#7
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Evolving Member
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Join Date: Jun 2008
Location: Home
Posts: 165
Drives: 2008 WW X MR: 325tq, 305whp, Rota Grids, Perrin shorty ant., Cobb F+B sway bars, HKS drop-in (3 layer-dry), AMS twin tip catback exhaust, UPIC, HBspeed tune
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I even bought the new 3 layer dry HKS to replace the old HKS and both sensors failed after that. However, it may not be the culprit. Again, can the tune cause this problem or is that not possible?
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Sep 29, 2009, 03:23 PM
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#8
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Drives: Evo X GSR
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I've know of another person that ran the HKS drop-in and had a MAF go bad too. Seems like too many cases to be a coincidence. How many people with a stock filter had a MAF go bad?
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Sep 29, 2009, 03:39 PM
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#9
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Evolving Member
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Join Date: Jun 2008
Location: Home
Posts: 165
Drives: 2008 WW X MR: 325tq, 305whp, Rota Grids, Perrin shorty ant., Cobb F+B sway bars, HKS drop-in (3 layer-dry), AMS twin tip catback exhaust, UPIC, HBspeed tune
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I agree: too many cases for it to be a coincidence.
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Sep 29, 2009, 07:19 PM
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#10
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Location: USA
Posts: 3,196
Drives: 2006 EVO IX
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Just run the stock filter and see if you get the p0102 code. If you do not get it, then it is the filter. If you do, then it is something else.
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Sep 29, 2009, 07:52 PM
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#11
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Evolving Member
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Join Date: Jun 2008
Location: Home
Posts: 165
Drives: 2008 WW X MR: 325tq, 305whp, Rota Grids, Perrin shorty ant., Cobb F+B sway bars, HKS drop-in (3 layer-dry), AMS twin tip catback exhaust, UPIC, HBspeed tune
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Even with the HKS in, it was OK, except for all the way out WOT which I did twice leading to 2 MAFs going bad. I am afraid to try it with the OEM filter! But eventually I will do it and then we will see!
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Sep 29, 2009, 10:02 PM
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#12
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Newbie
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Location: Berkeley, Ca
Posts: 24
Drives: Evo X
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is the hks an oil foam filter?
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Sep 29, 2009, 10:20 PM
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#13
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Evolving Member
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Location: St. Robert, MO
Posts: 287
Drives: 2008 RR Evo X
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Quote:
Originally Posted by jondimellow
is the hks an oil foam filter?
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no
but I believe there is some kind of, either manufacturing lubricant or something else getting onto the filters prior to them being sealed up at the factory.
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Sep 29, 2009, 10:25 PM
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#14
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Evolved Member
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Join Date: Dec 2005
Location: Cleveland, OH
Posts: 1,299
Drives: 00 Eclipse GT SDS Stg. 3 & 08 RR EVO X GSR
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Maybe get a Perrin, Cosworth, or WORKS filter...
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Sep 29, 2009, 11:14 PM
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#15
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Personal Sales Rating: ( 10)
Join Date: Jun 2005
Location: Midwest
Posts: 273
Drives: On the mustang dyno
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I've had one go out and I also have the HKS drop in. Full throttle on 2nd gear to redline when it popped up. Mitsu covered and also replace the maf plug. I was in the impression that it was the plug that was the problem thats why they replaced it. I dont think its the tune the could mess it up. I have since been running the same tune. But now I wanna change my filter to a Perrin one maybe.
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---Will have new numbers soon----
08 Evo X FPRED
03 Evo VIII FPgreen (street), GT42r(Drag), soon to try 6262 to both street and drag.
Times
12.0 2005
11.4 2008
10.8 2009
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Tags
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2006, bad, cobb, eclipse, evo, filter, foam, gt, hks, mafs, p0102, plug, po102, port, replace, upic  |
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