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Old 12-22-2003, 04:15   #1 (permalink)
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flat down low

when I nail it from a stand it's very slugish to about 2500 after that it seems fine no power loss at all; it also sometimes hesitates for a split second when you nail it. can anybody give me any idea what the problem is or could be.

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MIKE
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Old 12-22-2003, 04:58   #2 (permalink)
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Re: flat down low

Start with a general tune up, replacing spark plugs, air and fuel filter and advance the base timing a touch (around 30-24 degrees). Also check the spark plug leads and things like that. Probably worth throwing it on hte dyno to check AF ratios and how much power it is making.
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Old 12-22-2003, 05:20   #3 (permalink)
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Re: flat down low

Seems to be symptoms of blocked injectors too. Try some of that injector cleaner stuff with your next tank of premium. Has this behaviour developed over time or was it an "overnight thing"?
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Old 12-22-2003, 05:49   #4 (permalink)
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Re: flat down low

Is it an auto coz they are very sluggish in 1st if your ratio is 3.08 or less. At least what I would call sluggish anyway
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Old 12-22-2003, 06:26   #5 (permalink)
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Re: flat down low

Quote:
Originally Posted by !Gn|T|0n
Seems to be symptoms of blocked injectors too. Try some of that injector cleaner stuff with your next tank of premium. Has this behaviour developed over time or was it an "overnight thing"?
Its an overnight thing
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Old 12-22-2003, 07:14   #6 (permalink)
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Re: flat down low

Have you filled up somewhere sorta shonk recently? or let ur car run down real low, maybe you have sucked up some crud and blocked an injector or two.
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Old 12-22-2003, 07:21   #7 (permalink)
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Re: flat down low

yeah i did get caught out & ran it real low just last week. if it is a blocked injector how do i clear it out
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Old 12-22-2003, 08:09   #8 (permalink)
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Re: flat down low

Check tps voltage under 1 v @ idle and raise pregresivly to 5v @ wot..
Check that maf is clean,leads and cap, plugs etc...Air filter ??
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Old 12-22-2003, 14:20   #9 (permalink)
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Re: flat down low

I've got a similar issue (rough idle, lacking in low down go until about 2700). I've also decided (hoping) that its injector related (replaced other stuff already).
So injectors are coming out to be cleaned over chrissy break . . .

To clean them, ideally you need to pull them out and use an ultrasonic cleaner (and a spray tester is cool too). But it might be worth the $15 for a injector cleaner additive - you never know it might just solve it (much easier than pulling manifolds and injectors).
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Old 12-22-2003, 14:25   #10 (permalink)
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Re: flat down low

Quote:
Originally Posted by ED GLI V8
yeah i did get caught out & ran it real low just last week. if it is a blocked injector how do i clear it out

You could run some cleaner through with your next tank of gas or two, you can get this from repco, autobahn, supercheap etc or you can get them ultrasonically cleaned.
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Pacemaker Extractors, 2.5" Mandrel Exhaust, Hi-Flow Cat, Stright Through Muff, Broadband Intake Manifold, EEC V, Wood Grain Trim.
Thermo Conversion, AU XR8 Intake Snorkel, 10mm Spiral Core Leads, Shift Kit, Mock Dev5a Cam, King Low Springs.
17" ROH Shadow Chrome RT's, K&N Air Filter, LSD Conversion w/ 3.7 Gears.
Proudest Addition: Socks the Brindle Staffy Girl.
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