Stutter at 3.5k+ RPM if more than 1/2 Throttle - Subaru WRX Forum
 
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post #1 of 3 Old 01-07-2012, 05:33 AM Thread Starter
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Stutter at 3.5k+ RPM if more than 1/2 Throttle

Car-
1995 Subaru WRX
-Only mod is exhaust from cat-tip

Symptoms-
-During hard acceleration I will experience studders/bogging starting at 3.5k rpm and up. The stutters are very quick and inconsistently spaced(around 3 per second).
-If i accelerate normally I do not experience the issue
-If I am in neutral and I rev the motor I do not experience the bogging.

Any input would be great. I tried searching but nothing seemed to match my symptoms.
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post #2 of 3 Old 01-08-2012, 08:14 PM
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Try a basic tune up. Plugs,wires, fuel filter.........

Homebrewed tuned with Opensource!
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post #3 of 3 Old 01-09-2012, 04:18 AM Thread Starter
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Quote:
Originally Posted by dumdum View Post
Try a basic tune up. Plugs,wires, fuel filter.........
I think I may have found something that may be useful...

I disconnected my battery for an hour which.. from what I read should reset my ECU. During my drive to work today it performed perfectly. During the drive I wound out 2nd and 3rd gear about four times.

When I went on lunch, the problem returned . After work I did the same 'ECU reset' and now it's performing fine again. This leads me to believe it could be a problem with a sensor or my ECU... Is this a logical assumption?

Where are the fuel filters located on the car? I looked in the manual and the only filter I saw was the ' Fuel Jet Filter ' near the gas tank. Is this it?
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