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Old 01-05-2016, 11:56 PM   #1
invaerklp
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Default Engine Idle is pulsing after fmic install

I just finished installing my xs turbo clone fmic on to my 2003 Wrx sedan everything seems to have gone well but when i start the car it idles at about 1000 to 300 rpm and changes in between that range when i give the car gas it rev up just fine but when i let off the throttle it goes down real low to about 100 revs and some times the engine dies if i do this. As of now i am running a stage 2 ecu flash i know i will have to eventually reflash my ecu but thought the car would at least be drive-able. I am relatively new here and not really sure what i have to do to get the car back to the road. (Is it an ecu thing or possibly something else?)
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Old 01-06-2016, 10:25 AM   #2
ImprezaLover94
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Did you check for intake leaks? I would recommend starting there.
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Old 01-06-2016, 03:19 PM   #3
Rduburx
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You cannot use a FMIC w/ ots tune. Pro-tune is needed
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Old 01-06-2016, 03:21 PM   #4
Bpat1218
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Black 4EAT Wagon

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If it was fine before and idles weird now you probably have a leak. You can't have any leaks after the MAF else it will run poorly
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Old 01-06-2016, 03:35 PM   #5
pav5069
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Yea it sounds like there is a vacuum leak somewhere
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Old 01-07-2016, 12:38 PM   #6
ImprezaLover94
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Quote:
Originally Posted by Rduburx View Post
You cannot use a FMIC w/ ots tune. Pro-tune is needed
Incorrect. Although getting a pro-tune will maximize the benefits of a FMIC, a tune is not necessary.
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Old 01-07-2016, 02:57 PM   #7
Rduburx
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a FMIC is too much for a td04 turbo..but w/e go for it & TRY to have fun
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