I have a 92 camaro rs 305 TBI that sat up for 2 years. It ran fine when I parked it but now it wont start. I put a new battery, it turns over but will not run. It will run for a few seconds if I put gas or start fluid in the TB. Any ideas?

 

Old & stale gas gummed up the works.

 

That's a coincidence, I used to have a 91 RS 305 that ran fine when parked, but didn't run after it sat for two years. Would run with a prime, but then quit right away. Problem with mine was the short pump to sending unit rubber connector inside the tank deteriorated and cracked open. The pump would pump the gas right up and out the split. Check to see if you have any gas flow/pressure at the TBI. You need to disconnect the inlet fitting at the TBI and remove the line, there's no schrader valve to make it easy. If gas dribbles out that line, then you need to trace it further back. Remove the inlet line at the fuel filter and check pressure there. If it still dribbles, the problem is inside the tank, and you're going on a little "adventure".

 

I put new gas in the tank with High-octane to mix with the old and addes fuel stabilizer.
I removed both lines from the filter and gas pours out of both(I dont know about the pressure though?) I pulled the lines from the TBI and 1 line constantly pours out gas with key on or off, and the other line has nothing(I am assuming fuel delivery and fuel return). one thing I did notice was the TBI injectors were not spraying at all? Do you think the innjectors could be clogged? What about the injector pulse where does this come from ECM, Computer, Some says VATS but I dont think thats the issue?

Any sugggestions?

 

check fuel pressure. should be a big difference in how much fuel comes out with the key on.

 

I have a 02 LS1 that's been sitting for 2 yrs also. Did you drain your fluids and replace? I am wondering what to do with mine.

 

joe try starting up a thread in the 4th gen section.

 

1st posting... thanks for the heads up craby. -Joe