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Swapped Injectors, Painted TPI pic inside

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Old Jan 20, 2014 | 09:23 AM
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jjcuff1's Avatar
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Joined: Aug 2006
Posts: 484
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From: Tampa, FL
Car: 1988 Iroc-Z Red T-tops
Engine: 305 TPI LB9 55k miles
Transmission: Auto 700r4
Axle/Gears: 2.73 posi
Swapped Injectors, Painted TPI pic inside

I know you guys like seeing updates. After much back and fourth with TGO help I:

swapped in new injectors
new regulator diaphragm
cleaned fuel rails (was clogged)
new fuel line o rings
new 180 thermo (old one was completely rusted)
painted complete TPI and TB and lower intake
cleaned up fuel rails
removed AIR, EGR,Cold Start

I had issues with fuel pressure not holding after install and removed and re cleaned the rails, gaskets etc and I got the fuel pressure to hold much better but at least I know it is not the fuel rail or regulator anymore. (i tested it not running just primed the pump. It hits 43PSI then slolwy bleeds down to 30ps the 25 psi after several minutes. Car did this before the fix but much faster so it is improvement and it ran fine before too)

Probably bad or no check valve in
the tank ( i replaced the tank and pump with a walbro)

I didnt play with it much yet and no program for the cold start removal so it took a few starts to fire up but it fired up and sounded much better then the rusted injectors I had in there!

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