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TPI 305 no start

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Old Mar 14, 2012 | 04:42 PM
  #1  
36fordcoupe's Avatar
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TPI 305 no start

Tried to fire the motor in my 34 coupe---no go. cylinders 2,3,5 making heat but the others don't seem to be getting fuel, pulled the #1 plug and it is dry, all are getting spark. The motor is an 86 305 that hasn't been run since rebuild 5 years ago but has been stored in a protective environment. The computer is a16198262 (service replacement for #1227730). I can't get to the injector connectors without pulling the plenum because they are facing inboard.

I guess my questions are:
1. does the fact that cyl #s 2,3,5 seem to be working provide any clues?
2. If this is a batch fire system shouldn't they all work if 3 injectors work?

Any tips would be appreciated cause I don't know s--- about TPI.

Thanks
Bud
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Old Mar 14, 2012 | 06:15 PM
  #2  
vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: TPI 305 no start

Originally Posted by 36fordcoupe
I guess my questions are:
1. does the fact that cyl #s 2,3,5 seem to be working provide any clues?
Yes.
You have pressure at the fuel rails and the computer is correctly
operating the injectors ( trying to ) in each bank ( each bank is fired separately )

Originally Posted by 36fordcoupe
2. If this is a batch fire system shouldn't they all work if 3 injectors work?
Not if the injectors themselves are faulty
How old or how long have injectors been sitting?

Last edited by vetteoz; Mar 14, 2012 at 06:20 PM.
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Old Mar 15, 2012 | 09:26 PM
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36fordcoupe's Avatar
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Re: TPI 305 no start

the engine has not been fired since rebuild about 5 yrs ago but I understand the injectors were checked and lubed at that time. Sounds like I might as well pull them and have them checked.
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