Geezz, i never would have thought i had to do a write up.

I rebuilt my Lt1, the car had been sitting for 10 months w/o a engine or batt in it.

I put the LT1 in the car in the past few days and its finally complete.
And now it wont start.

Everything is hooked up except the oil pressure sensor (which broke) and the VSS, which is on its way.

The plug wires are correct and they are getting spark (although it is very slow zz....................zz....................zz kind of thing)

When i shoot some starting fluid it will run for a few sec then spudder out.

Ive tried cycling thru the fuel pump to clear any air out of the lines.
And my anti theft key crap has been changed out to normal by the previous owner.


Any ideas. Thanks.
Oh sorry i dont have a way to read the codes , because i sold my freakin datalogger while it was down. Im such a dumbass

 

If your car is the 93 shown in your signature, you can flash the diagnostic codes on the SES light, by shorting the ALDL pins with a paper clip.

 

Oh yeah i read that some where,
Clearing the codes works sometimes?

I did the flash thing the way shbox.com says but it is kinda hard to follow.

the CEL flash pause flash-flash, a bunch of times. Im not sure if i did it right.

 

Pretty sure that indicates (dtc12) that all is well. If memory serves. I am getting older. Have you checked to be sure it actually has fuel pressure? How about the age of the fuel? It could easily be funky by now. Open the fuel cap and take a wif

Just a thought.

 

OK.... now I read in another post that your 93 Z28 has a 95 engine. What PCM are you using? That will affect whether you can flash the codes.

Without providing all the required info up front, you are significantly reducing the chances that people will be able to help you, or even want to try and help you. You could put the important stuff in your signature, where it belongs, rather than what you have there now.

 

the 95 was just a short block.

all my 93 stuff was bolted to it.
new 93 cam, 93 heads w/ valve job and new high lift springs, same good non vent. opti. new taylor wires, ngk plugs(@60)
EGR Delete, AIR delete,
The Batt is new but may be bad b/c it just doesnt want to stay strong. I had it on maintain all night. The gauge in the car keeps dipping down in the shady area.

Yes the fuel is funky, my pops told me to use it up before i added new. its prob 10 mo old. The previous owner drained the tank before i bought it. I hit the shrader valve in the lines a few times to clear out any air.

Im an old muscle car guy and it just seems like its not getting fuel. I cant smell any out the tailpipe


TO add to the confusion, the first or second time i shot some starting fluid in it, it backfired and shot fire out the TB, I followed the book for how to set valves and im very sure they are right.

 

I think that answers the question about pressure If you aren't going to use a gage and check it (funky fuel could clog the pickup sock) at least relieve all the pressure in the line and prime it 6 or 7 times again. Then push the schrader again to see if it has pressure.

That still won't mean much if the pressure is too low since you won't know.

Then if you check the injectors with a noid light and it shows pulses and it has pressure and it still won't start, you pretty much proved the crap in the tank is the cause.

Do yourself a favor, it's hard enough to trouble shoot the mechanical and electrical issues. Get rid the crap in the tank and start with fresh fuel.

After fuel gets stale to a point, you couldn't light it with kerosene and hand grenades.

 

Well i have always been told i had bigger ***** than brains,

I bought the car w/ a blown headgasket and never drove it.

The gas gauge is way off.
I put some gas in it and did the fuel pump prime dance and if fired up.
I let it run @ 2000rpm for 5 min to break in the cam, after that the shop was getting smokey so pops told me to pull it outside. I took my foot off the gas and it spuddered out,

Now it wont start back.?

 

Same as before. Prime it by hand with a squirt can and see if it starts. Check pressure, pulses You should know the drill by now.

 

Thankyou Speedy, You have been a huge help.

I dont have a way to check the fuel pressure? other then when it spues out the valve, Some air bubbles come out too.
and can a multi meter be used to check pulses?

 

bump

still not running

 

For $40.00 you can eliminate one possibility. http://www.autozone.com/R,NONAPP1885...ductDetail.htm

 

cleared codes then it fired up for a few min then just died.

 

speedy maybe right i have a fuel pressure issue.

if i prime the pump about 7 times it will run for a min.

So i guess i need to pull out the pump and check the sock.

 

This was in a thread back in Mar.

As stated before my 93 Oil pressure sensor is broken, I asked a few days ago and someone said that it would not be an issue.

Any ideas?