[crashu91]

hello, I have a 95 s-10 blazer 4wd. I have a problem with it.
Fuel pressure is ~60 psi, engine cranks over fine, getting spark, NOT GETTING FUEL. I pulled a spark plug, and had someone crank over the engine while I kept my hand by the spark plug hole, and no gas was blowing out. I used a digital Multimeter to check the voltage at the injector harness quick connect, and I am getting a constant 12.58v.

I have replaced the CPI unit, and have a computer on the way.
Does this sound like the computer?

Any Ideas?

Please help.

 

[rlith]

Pull the upper plenum and look for washing, if the passenger side is washed, it's the cpi, if the driver's side is washed it's the nut kit...

 

[crashu91]

cpi

thanks for the reply. I'm sorry I wasn't more clear. there is NO LEAKAGE. It is a new CPI unit, no washing, nut kit not leaking,
Just Injector not firing (it appears). It is like the injector output is on all of the time (constant 12.58v).

 

[rlith]

It could be a bad CPI unit.... Just because it's new, doesn't mean it's not bad... I'd pull it then swap it under warranty just to eliminate it

 

[onequickv8s10]

hey rlith....i heard you scammed 'Nyte'

 

[crashu91]

cpi

Pretty sure it is NOT the cpi unit (I have 3 of them and they all do the same thing)

 

[rlith]

Hmmm, how about the fuel relay? (of the 3 mounted relays on the firewall it's the one closest to the drivers side fender...

 

[crashu91]

Hmmm, how about the fuel relay? (of the 3 mounted relays on the firewall it's the one closest to the drivers side fender...

I haven't checked that one (it had actually came loose from the firewall, and was dangaling).
What does that relay do? The fuel pump is running fine, and I thought it's relay was in the glove box.

 

[meeh350]

Generally Injectors see 12volts all the time, the computer grounds them to trip them.

im not sure about cpi injectors but i would imagine the ecm would still ground

 

[crashu91]

problem solved. It was the computer.