fuel issues?
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From: RAIDER NATION, CA, USA
fuel issues?
ok, so i have been havin issues with my boosted LS lately. one thing that i have noticed in the last few weeks is somewhat of question to me.
many times at full throttle, i hear a fluttering sound coming from the engine bay. it sounds like an exhaust leak, but not quite like it. at the same time, ill notice my autometer air/fuel guage fluctuating between the low yellows to low greens. so im thinkin its a fuel issue. possibly faulty inline fuel pump and maybe intank.
i have a stock intank pump and an airtex inline that came with the DRAG3 kit. the inline pump hasnt sounded strong as it used to since i did a compression test earlier this year. however, i havent experienced the low readings on the guage til a few weeks ago. my car runs fine when accelerating and changing gears. its only at full throttle and goin up inclines where ill get bogging and white smoke shooting out of my tailpipe. one time, i was going up a very steep hill and my car bogged like crazy and a white smokescreen shot out of my tailpipe! the cars behind me slowed down like i shot out a smoke bomb or somethin. it was crazy.
so maybe you experts can give me an idea of what i should check for... ive been so busy, i havent taken the time out to pull things off and test em. might it be my inline pump? intank? i already replaced my plugs an hour ago. TIA
many times at full throttle, i hear a fluttering sound coming from the engine bay. it sounds like an exhaust leak, but not quite like it. at the same time, ill notice my autometer air/fuel guage fluctuating between the low yellows to low greens. so im thinkin its a fuel issue. possibly faulty inline fuel pump and maybe intank.
i have a stock intank pump and an airtex inline that came with the DRAG3 kit. the inline pump hasnt sounded strong as it used to since i did a compression test earlier this year. however, i havent experienced the low readings on the guage til a few weeks ago. my car runs fine when accelerating and changing gears. its only at full throttle and goin up inclines where ill get bogging and white smoke shooting out of my tailpipe. one time, i was going up a very steep hill and my car bogged like crazy and a white smokescreen shot out of my tailpipe! the cars behind me slowed down like i shot out a smoke bomb or somethin. it was crazy.
so maybe you experts can give me an idea of what i should check for... ive been so busy, i havent taken the time out to pull things off and test em. might it be my inline pump? intank? i already replaced my plugs an hour ago. TIA
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Re: fuel issues? (SIK IN DA HED)
My friend's Drag 2 turbo had the same problem as you did. bogging.....
We went dyno, the under hood fuel pressure only went to 75 and dropping to 65. a/f was 17.1.....
we checked inline pump and pressure leak and changed fuel injector to 310, and switched FMU, but still the same 17.1...
finally, we fingure out stock in-tank pump was fucked.
We went dyno, the under hood fuel pressure only went to 75 and dropping to 65. a/f was 17.1.....
we checked inline pump and pressure leak and changed fuel injector to 310, and switched FMU, but still the same 17.1...
finally, we fingure out stock in-tank pump was fucked.
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Joined: Dec 2000
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From: RAIDER NATION, CA, USA
Re: fuel issues? (willie_su2166)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by willie_su2166 »</TD></TR><TR><TD CLASS="quote">
finally, we fingure out stock in-tank pump was fucked.</TD></TR></TABLE>
did it run normal during regular driving?
finally, we fingure out stock in-tank pump was fucked.</TD></TR></TABLE>
did it run normal during regular driving?
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From: RAIDER NATION, CA, USA
Re: fuel issues? (Blaze45)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blaze45 »</TD></TR><TR><TD CLASS="quote">Do a compression test....... Blown HG or cracked sleeve......
Blaze</TD></TR></TABLE>
thats the thing... im gettin 150s across the board.
Blaze</TD></TR></TABLE>
thats the thing... im gettin 150s across the board.
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