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B16T dumping fuel off throttle

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Old 07-29-2014, 08:56 PM
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Default B16T dumping fuel off throttle

Random issue, up until a week ago my car ran great it's a stock b16 on 10psi tuned on chrome.

The issue is not always happening sometimes it's back to perfect. So Normally off the throttle means no fuel is going in , wideband 18+, When I give it some light boost or sometimes normal driving and let off its burps and pops wideband flashing 10-12:1-18+ it won't stay off the gas. Back on the gas numbers are ok. Sometimes they aren't and jumping. Next I'll go and be idleing the car suddenly dumping 10:1 until I wait or rev it till it figured out wtf .

Like I said this just came up, changed plugs cleaned tb swapped map sensors. Injectors cleaned last season 680cc.

It's a drivability issue flooring it is totally fine.

Next step? This is preventing some racing I'd like it sorted out. Compression timing everything is good. Tps? I will check.
Old 07-30-2014, 05:39 AM
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Default Re: B16T dumping fuel off throttle

Its the decel parameters. Contact your tuner.
Old 07-30-2014, 05:58 PM
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Default Re: B16T dumping fuel off throttle

this would change after 2 years no problems? it happens at idle sometimes as well, and sometimes the driving is not good either. it effects the entire operation at partial throttle. I cant figure it out. problem is intermitent

last hope is the tune shop
Old 08-01-2014, 06:11 AM
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Default Re: B16T dumping fuel off throttle

Tps wire broke.
Old 08-01-2014, 02:13 PM
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Default Re: B16T dumping fuel off throttle

yea it would either be the tps or decel fuel fut was somehow turned off in the ecu
Old 08-01-2014, 04:30 PM
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Default Re: B16T dumping fuel off throttle

Yuuuup a good old t tap from my nitrous days was the culprit . Car runs great again. I'm using a tb without a fitv now since I swapped it to troubleshoot I guess it doesn't matter
Old 08-01-2014, 04:31 PM
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Default Re: B16T dumping fuel off throttle

That coulda cost me a run
Old 08-01-2014, 05:24 PM
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Default Re: B16T dumping fuel off throttle

Whats the setup?
Old 08-01-2014, 06:47 PM
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Default Re: B16T dumping fuel off throttle

stock b16 57 trim
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