blacktop sr20det fuel problem
03-16-2013, 12:11 PM
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nx2000 sr20ve
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blacktop sr20det fuel problem
1st off i just purchased this 240 as is with minor problems, car is a fresh rebuilt sr20det black top with bc springs retainers step 2 cams full buddy club spec 2 exhuast with gt3076r on 15psi..car Currently has a t28 installed the car has a minor exhaust leak after wideband sensor car reads lean but soon as i touch pedal it goes rich 10.6 and breaks up heres a link of car running after warming up any advice.. thanks in advance .... https://www.youtube.com/watch?v=hA1Q...e_gdata_player
03-16-2013, 02:27 PM
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I H8 MY CAR
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Re: blacktop sr20det fuel problem
First off, your baseline fuel pressure is too damn high. Stock pressure is about 40-42 without the vacuum line attached IIRC. That idle AFR is actually not that bad. As long as its not knocking, you're saving gas. As far as it going rich to 10.6, it probably needs a tune bad since it had a GT3076 and now you have a stock turbo on there. What computer are you using? Shoot me a PM if you have more questions...
03-17-2013, 06:48 PM
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nx2000 sr20ve
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Re: blacktop sr20det fuel problem
Sorry no retune yet i have another gt30 i just have to fine time to put it on then ill keep you guys up to date, i turned fuel pressure down to 42
03-17-2013, 07:23 PM
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Re: blacktop sr20det fuel problem
Well, stop wondering why it doesn't run properly if you haven't got retuned yet. That's why it doesn't run properly. And no, the fuel pressure isn't helping.
03-18-2013, 04:34 PM
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nx2000 sr20ve
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Re: blacktop sr20det fuel problem
ok just trying to learn , i thought that if i added a lil pressure then it would be rich instead of lean, anyway does any1 know what the vaccum should read the car is currently between 16 and 18 , any advice help
03-27-2013, 06:53 PM
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Re: blacktop sr20det fuel problem
The vacuum should be around 18-20 if its below 18 you might have a slight boost/vac leak. I know on my old 240 the vacuum was reading 15 and I went back and tightened all my ic hoses and checked all the vacuum lines. After I did that it was back up to 19.
03-27-2013, 06:58 PM
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Re: blacktop sr20det fuel problem
First off, your baseline fuel pressure is too damn high. Stock pressure is about 40-42 without the vacuum line attached IIRC. That idle AFR is actually not that bad. As long as its not knocking, you're saving gas. As far as it going rich to 10.6, it probably needs a tune bad since it had a GT3076 and now you have a stock turbo on there. What computer are you using? Shoot me a PM if you have more questions...
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