Newbie from Texas - 94 Vette with LT1

[F1Jim64]

OK guys - the test bench photo is intimidating...

So... my neighbor GAVE me his 94 Vette with an LT1/6 speed manual. You can imagine what kind of shape it's in... He left E10 gas in it for about a decade... so of course the fuel pump and pickup are long gone - and maybe the tank too.

Learning all about the special 94/95 Flash-able PCMs - and EEhack and all of Stevio's other creations - thank God he focused on this vintage of LT1... or I'd be in deep doo-doo.

Lemme know if there's anything I should watch out for... I thought I had a USB to OBDII cable that would work... but NO. So my cable is on order... will be able to do damage soon - need to get a data log going to see what's working and what isn't. There's no check engine light on - but I can't believe that everything's working... Mice ate some of the headlight wiring... can't wait to find out what else they ate...

[steveo]

a full fuel system redo with some modern injectors would probably be a good place to start

[F1Jim64]

a full fuel system redo with some modern injectors would probably be a good place to start

Well...

Cleaned the gunk out of the tank as best I could with a redneck acid wash - and lots of scraping tar (or whatever E10 fuel leaves behind) off the bottom of the tank, then replaced the pump and sending unit.

Got fuel to the rail, but still no start. Then I pulled the rail & injectors out of the manifold and cranked it over - nothing, not a drop.

I soaked the injectors in lacquer thinner for 2 days - and then they went clicky clack. Put them back in - retest - all sprayed fuel!

Reinstalled the injectors and rail - and she fired right up. Idles OK and seems to rev - but can't drive it until I get the urethane butt back on... 😎 I did load the tank with a couple bottles of Techron fuel system cleaner - I've always heard that's good stuff.

@steveo - will it run noticeably better with "modern" injectors? I know injector tech has come a long ways since 1994 but I'm concerned about a mismatch between the injector drivers in the ECU and new injectors... or are you saying just find some new ones with the same AC Delco part number?

I don't know that this car is worth a bunch of mods - just getting back to original running condition would be nice. I think it does have an aftermarket cat-back on it but I assume these old MAF EFI systems are able to compensate for some bolt ons without getting too out of whack...

Oh wait - that's what EEhack is for ! 🤠

[steveo]

those old injectors with varnish contamination will probably have horribly uneven flow

any high impedance injector will be fine with the ecm, although you need to enter the new injector parameters if they're much different from the stock ones