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fighting to keep it running

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Old Dec 22, 2011 | 02:06 AM
  #1  
jeff_blake's Avatar
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From: Mountlake Terrace, Wa
Car: 86 Iroc + 83 Firebird
Engine: Iroc 305 TPI, Firebird 305 4bbl
Transmission: 700r4 in both.
Axle/Gears: Iroc 3.27 Firebird 3.23
fighting to keep it running

hey all, have a 1986 iroc-z 305tpi. it has new cap, rotor, plugs, wires, ect ect. everythings almost new. anyways on cold starts you have to fight to keep it running or it'll die out. almost like its a clogged fuel filter. (which i havent yet replaced) however once its up to temperature it runs as great as a brand new car. any ideas on why it wants to die on cold starts? its not just after i replaced everything, its always been that way. with the cold weather coming around now takes a bit longer to get up to temp. any opinions are great. thanks once again
-jeff.
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Old Dec 22, 2011 | 06:31 AM
  #2  
ex-x-fire's Avatar
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Re: fighting to keep it running

That year had a 9th injector or cold start injector. See if its getting a pulse.
Check your fuel pressure & leak down rate.
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Old Dec 22, 2011 | 11:30 PM
  #3  
jeff_blake's Avatar
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Joined: Oct 2009
Posts: 405
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From: Mountlake Terrace, Wa
Car: 86 Iroc + 83 Firebird
Engine: Iroc 305 TPI, Firebird 305 4bbl
Transmission: 700r4 in both.
Axle/Gears: Iroc 3.27 Firebird 3.23
Re: fighting to keep it running

wheres the 9th injector located? i never seen a 9th one on this engine. may be wrong though
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Old Jan 10, 2012 | 12:14 AM
  #4  
rusty vango's Avatar
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From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: fighting to keep it running

he means your cold start injector,its on the left side of the FI runners next to the intake
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