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Old Jan 14, 2007 | 05:03 PM
  #1  
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From: Maple Ridge, B.C., Canada
Car: '89 Iroc Vert
Engine: 355 TPI
Transmission: T-5(for now)
Axle/Gears: 3.45 9 Bolt
won't start

cranks fine, tons of fuel pressure,
no spark, and injectors aren't firing,

have tried different ECM and proms, my scanner hooks up and logs fine,
no codes, non vats car

88 TPI,

any where I should look thanks?
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Old Jan 14, 2007 | 05:32 PM
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From: Maple Ridge, B.C., Canada
Car: '89 Iroc Vert
Engine: 355 TPI
Transmission: T-5(for now)
Axle/Gears: 3.45 9 Bolt
also ECM is getting all required grounds and powers,
and its intermitent,
sometimes its starts but runs rough until warm
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Old Jan 14, 2007 | 05:54 PM
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From: Victoria BC Canada
Car: 87 Camaro IROC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.23
wait what?...it has no spark but u got it to start?...whats the real story here?
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Old Jan 14, 2007 | 06:38 PM
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From: Maple Ridge, B.C., Canada
Car: '89 Iroc Vert
Engine: 355 TPI
Transmission: T-5(for now)
Axle/Gears: 3.45 9 Bolt
sorry when it doesn't start, it has no spark and the injectors don't fire

when it does it has spark and the injectors fire fine,

I got an inline spark tester on it and a noid light,

example today, its my bros car btw

my bro was cranking I was watching spark tester and noid light, niether would light up,
went inside and printed some schematics off the computer came out, checked again, he cranked, noid light and spark tester both lighted up, and it fired up, worked fine, but now its not firing again
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Old Jan 15, 2007 | 03:01 PM
  #5  
89Vert's Avatar
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From: Maple Ridge, B.C., Canada
Car: '89 Iroc Vert
Engine: 355 TPI
Transmission: T-5(for now)
Axle/Gears: 3.45 9 Bolt
I'm really stumped on this 1,

does anybody know what conditions have to be met for TPI to fire fuel and spark?

does the ecm need to see a distributor signal to fire the injectors?
I'm thinking its distributor related cause it should create sprak no matter what the ECM is doing, no?

and if the distributor isn't getting a reference the ecm wouldn't sense rpm, and not fire the injectors?

I'm just knid of grasping at straws here and I don't have the proper test equipment to check if the distributor is working correctly,

any help would be great
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Old Jan 15, 2007 | 03:57 PM
  #6  
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From: Victoria BC Canada
Car: 87 Camaro IROC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.23
if you turn your key to the ON position, your pump will come on for like 5 seconds then shut off (unless you start the engine) just to prime to injectors. when you turn your key to ON, does the pump come on for 5 secs? mayb its an ignition switch.
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Old Jan 15, 2007 | 04:24 PM
  #7  
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From: Maple Ridge, B.C., Canada
Car: '89 Iroc Vert
Engine: 355 TPI
Transmission: T-5(for now)
Axle/Gears: 3.45 9 Bolt
Originally Posted by Gramps
if you turn your key to the ON position, your pump will come on for like 5 seconds then shut off (unless you start the engine) just to prime to injectors. when you turn your key to ON, does the pump come on for 5 secs? mayb its an ignition switch.

yes, fuel pressure is fine, with a noid light on, the injectors aren't firing,
I also have no spark,

fuel pump is fine, it was replaced with a performance 1 last year, fuel system is up to par, motor/car are built for nitrous, haven't put the bottle on it yet

seems like 1 problem after the next with this thing
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Old Jan 24, 2007 | 12:00 AM
  #8  
89Vert's Avatar
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From: Maple Ridge, B.C., Canada
Car: '89 Iroc Vert
Engine: 355 TPI
Transmission: T-5(for now)
Axle/Gears: 3.45 9 Bolt
fired an new dissy in and shes good to go
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Old Jan 24, 2007 | 07:41 AM
  #9  
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Pickup coil or module?
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Old Jan 26, 2007 | 02:56 PM
  #10  
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From: winthrop harbor
Car: 88 gta
Engine: 5.7
Transmission: 700r4 with 2400 stall
Axle/Gears: 9 bolt 3.23
When you had this problem did you haven a SES light or was it off,mine's kinda doing the same thing as you described .I just replaced the module and had spark but I still have no inj. pulse
Joe
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