mk4 jetta down on power.pls help

Models manufactured from 1999 to 2004

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Re: mk4 jetta down on power.pls help

Postby MT-Getto on Jun Wed 01, 2016 4:46 pm

Let him know you will be using it for a while


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Re: mk4 jetta down on power.pls help

Postby Roadhog on Jun Wed 01, 2016 6:13 pm

olson1990 wrote:That's funny that's what I did last night. His vag com showed my lumbada out of ranger


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Re: mk4 jetta down on power.pls help

Postby MT-Getto on Jun Thu 02, 2016 6:40 am

Whats your engine code, and do you have a spare ECU with a stock file to try? If you did the head and tune at the same time, and you have compression, I'd lean towards the C2. Sounds like maybe its time to start working backwards to when it was running and you could still hit 120 on a track or Dyno (which ever it was).
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Re: mk4 jetta down on power.pls help

Postby olson1990 on Jun Thu 02, 2016 9:53 am

Was street. And cars not popping a code for anything. Just bag com sais bad o2. Bank 1 sensor 1. So all start there. BUT it takes 20 seconds just to do a 3rd gear pull its bad lol but it's weird because the car sounds good. No misfires or anything. But I'm not happy with c2. There not vary cooperative. But Scott at us rally team has bein realy helpfull. He knows his stuff.
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Re: mk4 jetta down on power.pls help

Postby kompressorgolf on Jun Fri 03, 2016 9:51 am

your cat plugged up?
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Re: mk4 jetta down on power.pls help

Postby benno3231 on Jun Fri 17, 2016 10:26 am

kompressorgolf wrote:your cat plugged up?

Always a great idea to go back to basics. This is the problem when people get heavily involved with mods. There are four strokes, make sure they're all working correctly before moving on to other things.
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