TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

tbi not firing

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Old Nov 15, 2008 | 09:11 PM
  #1  
mdurbala's Avatar
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Joined: Sep 2005
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From: Arizona
Car: 91 Camaro RS
Engine: 305 tbi
Transmission: 700R4
tbi not firing

so yesterday i was driving home and the car just died, couldn't get it started again, ended up towing it home, my question is if the fuel pump cycles does that mean its not bad? ive had some intermittend issues with the car lately i.e. dying when its cold, and sometimes i can hear the fuel pump groan when it cycles any ideas?
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Old Nov 15, 2008 | 11:52 PM
  #2  
duderjay's Avatar
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Joined: May 2008
Posts: 195
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From: calgary
Car: 88 iroc z28
Re: tbi not firing

dude get the fuel pressure checked save yourself some grief. It will tell you right away about fuel pump fuel regulator and fuel filter.

problably the pump is dying bujt check the fuel pressure first and trust me you dont want to pull a fuel pump on these cars for nothing
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Old Dec 19, 2008 | 07:09 PM
  #3  
rough's Avatar
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Joined: Apr 2007
Posts: 1,087
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From: St. Petersburg, FL
Car: 88 Camaro
Engine: 305 TBI
Transmission: 700-R4
Axle/Gears: 2.73
Re: tbi not firing

ignition control module under the distributor
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Old Dec 19, 2008 | 07:19 PM
  #4  
89RS_82Z's Avatar
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: tbi not firing

do the injectors spray?? if so how good is the spray

check in INJ 1 and INJ 2 fuse in the fuse block

if your getting the fuel see if your getting a spark

if no spark then it could be the coil, module, or something worng with the pick up on the shaft
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