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Boost problem @ high revs. Choke/stutter

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Old 15 October 2009 | 02:07 PM
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my_98WRX's Avatar
my_98WRX
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Default Boost problem @ high revs. Choke/stutter

Hey guys.

This avo the scoob had a bit of a fit, was hoping someone could help me out wit this.

I was in 3rd coming up to 5000rpm, the car choked and hesitated ... i backed off a bit, then accel at half throttle, it was fine.

Tested it for the second time in 3rd under load...same problem.

i recently replaced the AFM.
No codes popping up and none stored in ECU.
Running standard boost with a front mount.


Any ideas would be greatly appreciated
Old 15 October 2009 | 02:10 PM
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sounds like you might have to have your throtel body cleaned i had the same problem with a gti turbo but is was fine after that but i could be wrong
Old 15 October 2009 | 02:13 PM
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clean the boost lines also. check the wastegate solinoid and also clean it. then try that.
Old 15 October 2009 | 02:19 PM
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Originally Posted by mr_D
clean the boost lines also. check the wastegate solinoid and also clean it. then try that.
Thanks guys.
Im a bit new to this, so how can i locate the wastegate solenoid to give it a clean? MAF cleaner would do the job as well right?

Also when you say clean the boost lines, do u just mean the vac hoses?

Cheers
Old 15 October 2009 | 02:56 PM
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i had my throttle body cleaned out by a garage didnt take long worth doing
Old 15 October 2009 | 03:42 PM
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yeah vac hoses on the turbo and the wastegate solinoid is on the suspension turet on drives side under the bonnet. maf cleaner shoudl be fine
Old 15 October 2009 | 05:14 PM
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This time of year, with cooler temps, some scoobs are prone to overboost resulting in fuel cut - that said, if you hit fuel cut it is not a stutter - more of an 'oops...just run into a brick wall' effect...may be worth considering though
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