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TPI brainiacs help me please!!!

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Old Sep 27, 2001 | 08:35 PM
  #1  
Chris Sartori's Avatar
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From: Lexington, KY, USA
TPI brainiacs help me please!!!

Swapped 88TBI to 91TPI. Engine will crank and run with a squirt of starting fluid. Fuel pressure to fuel rail is 45psi. Ran a test light to injector harness and it lights on both terminals. When cranking the light pulses. Why am I not getting gas out of the injectors????? I am out of ideas and have tried all the diagnostics in the helms manual. Maybe the ECM is shot? Any thoughts or ideas would be great! Thanks!! I would be lost without this board and your help!
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Old Sep 27, 2001 | 09:02 PM
  #2  
Dyno Don's Avatar
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From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Ran into this same problem when I did the swap, my unit had been setting around for a while. Removed the injectors had them cleaned, then it started right up.
HTH,Don>>>

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Chronologically challenged. But still kicking!
'92 CAMARO RS
305 TBI 5/spd (now TPI)
B4C Alt.
'69 camaro-BB/Lenco,1050 dominators, /Pump Gas/no drugs 8.97-150+/3200lbs.
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Old Sep 27, 2001 | 10:53 PM
  #3  
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From: College Station/Spring, TX
my engine did this when i upgraded it to the 350. the injectors were brand new and it still wouldnt crank and i quit for the night, the next day i came back and it started up and i broke her cam in.

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Brandon
"ScreaminDeamin 360"
350 60 over, TRW forged 9.83:1 pistons,Hooker Comp headers, crane cam 216/228 .484/.512, crane 1.6 RR's, ported plenum, home made ram air, 24lb SVO injectors, crane AFPR, all going through 3 inch mandrel pipe and a flowmaster.
New project-89 IROC-305 5spd...Jamex Springs...and thats just about it!Soon- 6 speed, Pro 5.0 shifter and 4.10's
http://users.argolink.net/bvana

http://ScreaminDeamin.cz28.com
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Old Sep 28, 2001 | 08:16 AM
  #4  
TPI Guy's Avatar
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Car: 1968 Camaro
Engine: 406
Transmission: Tremec TKO
Axle/Gears: 3.42
Are you sure it's your fuel? Starting fluid is much more flammable than fuel. It doesn't take as much voltage to get it to release it's energy in combustion. Make sure you have a healthy spark before you go any further. Also, make sure your MAP is plugged in. It may sound stupid, but I had a similar problem with a burnt MAF. It would run on starting fluid, but not on it's own gas. Good luck.

------------------
355 c.i.
Dart 180 Heads
Lunati 224/224 cam
Harland Sharp 1.5 rockers
Performer RPM Manifold
Holley 600 cfm double pumper
Hooker Super Competition Headers
Flowmaster Exhaust
Competition Engineering Sub-frame connectors
Super T-10
GM posi 3.42 rear
Hurst Roll Control
13.9@102
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Old Sep 28, 2001 | 11:42 PM
  #5  
airdeano's Avatar
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From: nlr, ar
cudos dyno don. if the fuel rail is pressurized
and you have an injector pulse. the injectors
should pass gas. i have rapped on injectors
to unstick 'em and that saves disassembly.
a screwdriver handle (big wood end) and a
light hammer. tap the injector sides. injectors
that are stored or sitting around or just bad
gas can foul an injector.
other than that, remove plenum and runners
(yuch) and remove rails. and if you are good
lay rail assembly onto manifold shop rag under
each injector, reconnect injector harness, disconnect ignition coil, and spin 'er over.
fuel? no fuel?
airdeano
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Old Jul 19, 2012 | 08:44 AM
  #6  
1991_RS's Avatar
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Joined: Feb 2011
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From: West Michigan
Car: 1989 Formula Firebird
Engine: Swapped 350 TPI speed density
Transmission: 700R4
Axle/Gears: 2.73 (soon to be 3.42)
Re: TPI brainiacs help me please!!!

Mind if I hitch hike on this post?

I've got almost the exact same problem. Same years with my swap, too. New pump, pulses w/ noid, apparently good spark (but will double check that). Thinking it's plugged injectors from the donor engine sitting awhile.

Curious to know what worked for you.
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