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4age stalling...

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4age stalling...

Postby Pies » Tue Apr 25, 2006 12:10 am

motor is a big port (blue top) running in an ae92 gt sedan (dont ask why)

problem is, after its warmed up it will stall very easily if you take your foot off the gas. its alright if you ease the revs down but if you suddenly take your foot off the gas, 8 times out of 10 it will stall. have checked for vacume leaks and leaks in the air intake. checked air filter. any other ideas?
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Postby Caveman » Tue Apr 25, 2006 1:00 am

TPS way out of alignment?

Broken ABV's?

Low fuel pressure?
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Postby MrOizo » Wed Apr 26, 2006 12:22 pm

if you take your foot off slowly and it idles, what does it idle at?

maybe you need to bump the idle up a tad for the warm idle?
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Postby sergei » Wed Apr 26, 2006 1:08 pm

is it AFM or MAP? vacuum leaks?
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Postby MrOizo » Wed Apr 26, 2006 2:03 pm

oh yerah... tried resetting the ECU?
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Postby neo » Wed Apr 26, 2006 2:06 pm

... another one bites the dust yeah!...... dop dop doop...

How about going 3 from 3 pies?
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Postby Pies » Wed Apr 26, 2006 10:11 pm

shut up jimmy!

blue top MAP sensr. idles between 500 and 900rpm
no vacum leaks that i have found yet. checked 90% of the pipes
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Postby sergei » Wed Apr 26, 2006 10:14 pm

check if "dashpot" thing is working - I'm not sure if bluetops have them but it is sort of vacuum actuator which pushes the throttle open for a second or so when you let off the gas, it should be somewhere arround throttle linkage area....
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Postby The Wombat » Wed Apr 26, 2006 11:04 pm

blocked fuel lines/filter or low fuel pressure my ae92 trueno used to do this every now and again
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Postby AE91Sprinter » Wed Apr 26, 2006 11:24 pm

dashpot shouldnt cause it to stall, its only there for emissions purposes.
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Postby CozmoNz » Thu Apr 27, 2006 7:55 am

hook up a vac gauge and check if there is a vac leak or not.... lol?
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Postby Pies » Thu Apr 27, 2006 5:32 pm

CozmoNz wrote:hook up a vac gauge and check if there is a vac leak or not.... lol?


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Postby RickGT » Thu Apr 27, 2006 6:55 pm

Pies wrote:shut up jimmy!

blue top MAP sensr. idles between 500 and 900rpm
no vacum leaks that i have found yet. checked 90% of the pipes


Mine doesnt it idles at like 1200rpm and like 2200rpm when its cold
y is this? ohh and the idle screw is nerly rite in
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Postby Pies » Fri May 05, 2006 11:23 pm

hmmm ok after a week or 2 of putting up with it i think ive finally discovered what may be the problem. as i am slowly up grading bits and peices i have found that the dizzy cap is absolutley r00ted. so im gonna put on my spare and see if that helps :P

just incase anyone cared
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