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no start 350 tpi

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Old Sep 7, 2007 | 08:24 AM
  #1  
8996chevy's Avatar
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From: Warren, Oh
Car: 89 IROC
Engine: 355
Transmission: 5 sp., Alum Driveshaft
Axle/Gears: 3.73 Posi
no start 350 tpi

need help, while driving car just died. had it towed home and started checking.
NO SPARK. 45 lbs fuel pressure. tried different spark control module, ignition coil, pickup coil, tps sensor, wiring, couldn't find anything. I'm assuming the parts i tried were good, but who knows. any suggestions? how much oil pressure is needed while cranking to allow ecm to give spark? thanks
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Old Sep 7, 2007 | 09:48 AM
  #2  
DZcode's Avatar
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Joined: Apr 2005
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From: Virginia
Car: 1969 Z28
Engine: 406 TPI
Transmission: Tremec TKO 600
Axle/Gears: 3.31
Re: no start 350 tpi

The oil pressure sensor allows the fuel pump to continue running. That sensor's input is not used to control spark.

My only experience with a no spark condition was VATs (mistakenly left on during a TPI retrofit) and a bad ignition coil.
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Old Sep 7, 2007 | 07:30 PM
  #3  
8996chevy's Avatar
Thread Starter
Junior Member
20 Year Member
iTrader: (1)
 
Joined: Sep 2003
Posts: 93
Likes: 1
From: Warren, Oh
Car: 89 IROC
Engine: 355
Transmission: 5 sp., Alum Driveshaft
Axle/Gears: 3.73 Posi
Re: no start 350 tpi

found out what the problem was. distributor gear was worn down on one spot. gear wasn't meshing with cam, so it stopped turning, hense, no spark. cleaned out oil pan with magnet, changed oil and filter. rebuilt distributor, sprayed gunk down hole and let it drain out oil pan. fired right up. no more problem. thanks
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