Author Topic: partial throttle fkl and fbk  (Read 1333 times)

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Offline saltychase

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  • Posts: 31
  • Location: canada
  • Ride: 2011 wrx hatch, 93 eunos roadster
partial throttle fkl and fbk
« on: May 08, 2016, 10:00:30 am »
hi guys been monitoring my car for a while and at partial throttle (a quarter to half) i get a constant fkl between .5 to 2. but at wot i get nothing, and fbk is similar but not as consistant more random. ive tryed cleaning my maf sensor and filter which is about it and it did nothing. when i reset me ecu to remove all learning it runs no fbk or fkl for a couple days 3 or 4, then goes back to partial throttle knock. im tuned for 91 so ive tryed doing husky 94 for a couple weeks and same deal. im protuned as well, and it was fine in the colder months but its just started doing this the last couple months when it heated up. any ideas what else i could try? maybe o2 sensors or spark plugs? i just changed my plugs 3 months ago but could a foul spark plug cause this? WOT is always knock free so im confused as to where its coming from.  ill grab a data log if needed, i tryed to get one last night but it "failed to copy from accessport" so i lost my recent file.

11wrx
cobb catted downpipe
cobb intake
protuned on 91

thanks for any help

Offline jakesubie

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  • Ride: 1990 240sx
Re: partial throttle fkl and fbk
« Reply #1 on: May 08, 2016, 02:33:57 pm »
its more than likly just ghost knock and nothing to worry about. as long as wot is knock free youll be fine

Offline saltychase

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  • Posts: 31
  • Location: canada
  • Ride: 2011 wrx hatch, 93 eunos roadster
Re: partial throttle fkl and fbk
« Reply #2 on: May 08, 2016, 03:11:26 pm »
Okay thanks man