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2.8 no start

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Old Oct 18, 2010 | 04:34 PM
  #1  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
2.8 no start

I had this car running back in july, i replaced the fuel pump and a FPR vacum line and she started right up, it ran for a week then died and wont start, so far iv replaced the ign module, cap, button, entire fuel rail system, fuel pump,and MAF sensor. after i changed the fuel system i checked my timing and i was off two teeth so i set it back to normal and tried to start it and it was back firing so i swapped plugs 1 and 4and its fireing now but wont start, my plugs arent fowled, they are newish, along with the plugs, and im lost, can someone please input, i have plenty of pressure at the rail because when i push in on the nipple the gas almost hits the hood. someone please help me!
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Old Oct 18, 2010 | 05:41 PM
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

help please
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Old Oct 18, 2010 | 08:41 PM
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

anyone?
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Old Oct 18, 2010 | 08:46 PM
  #4  
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From: Indpls, IN
Car: 92 Jamaican Yellow Firebird
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
Re: 2.8 no start

What do you mean "two teeth"?
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Old Oct 18, 2010 | 08:48 PM
  #5  
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From: Indpls, IN
Car: 92 Jamaican Yellow Firebird
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
Re: 2.8 no start

Coils can fire but not strong enough to start the car. Test the coil.
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Old Oct 18, 2010 | 09:06 PM
  #6  
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

thank you!! i will test this in the morning!!
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Old Oct 19, 2010 | 08:42 AM
  #7  
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

would do i test the coil?
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Old Oct 19, 2010 | 08:52 AM
  #8  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

might also add that im getting fuel and spark and its fireing but just not enough to get it to start, my dad is bringing it up to TDC then doing a compression stroke today then hes gonna check the timing to see where im at. this is really starting to kill me.
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Old Oct 19, 2010 | 06:19 PM
  #9  
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From: NC
Car: 91 Trans Am
Re: 2.8 no start

Remember you have to disconnect the DST connector when setting base timing. I wouldnt fool with that until you can atleast get it running

Borrow a fuel pressure gauge and make sure it's building pressure. Next, double check your firing order. Its easy to get the wires mixed up
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Old Oct 19, 2010 | 06:44 PM
  #10  
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

whats a DST? and i have a fuel pressure gauge here i plan on checking that tomorrow.
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Old Oct 19, 2010 | 07:18 PM
  #11  
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From: NC
Car: 91 Trans Am
Re: 2.8 no start

http://www.austinthirdgen.org/mkport...tachometer.jpg

Lower right part of the schematic. Its for a 90-92 car, but your 86 will have it too
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Old Oct 19, 2010 | 07:22 PM
  #12  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

im not seeing it jon.
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Old Oct 19, 2010 | 07:29 PM
  #13  
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From: Evansville, IN
Car: 1992 Camaro RS 25th Anniversary
Engine: 3.4L v6 with a t3/t4 Turbo
Transmission: T-5 Conversion
Axle/Gears: 3.23 SLP Limited Slip
Re: 2.8 no start

its a connector right by your heater box(might be in the wire loom) its a gray plastic connector with i think a white wire coming out of both ends(may be wrong on the color) you have to unplug this to set base timing

edit...correction tan wire
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Old Oct 19, 2010 | 07:34 PM
  #14  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

thanks, if i dont figure this out soon im gonna pay someone on here to come and look at it for me and see if they can help me
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Old Oct 19, 2010 | 07:51 PM
  #15  
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From: NC
Car: 91 Trans Am
Re: 2.8 no start

Tan/blk wire, single pin black inline connector
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Old Oct 21, 2010 | 06:01 PM
  #16  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

got it running and its running great too, my dizzy was off and so was my spark plugs, my step dad had them wrong but its all good now, thank you everyone for your help!!!!
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Old Oct 21, 2010 | 06:07 PM
  #17  
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From: Evansville, IN
Car: 1992 Camaro RS 25th Anniversary
Engine: 3.4L v6 with a t3/t4 Turbo
Transmission: T-5 Conversion
Axle/Gears: 3.23 SLP Limited Slip
Re: 2.8 no start

haha i swore my plugs were right too....always double check that kids i screw it up constently for some reason
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Old Oct 21, 2010 | 06:12 PM
  #18  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 no start

well on the passenger side my step dad thought they ran 123, then the driver side picked up with 456, insted of it being factory 1, passenger, 2 driver, ect, i didnt know he changed it.
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