I think the opti went on my car, help me diagnos

[84hurst]

My car, the Z28, is cranking longer and when it fires it sounds like its running on two cylinders for a few seconds then it dies. It doesn't even have enough power to rev up. I'm thinkin opti, am I right?

[juicedimpss]

could also be a fuel pump
does it have a CEL?

[84hurst]

no cel. I havent considered the fuel pump. I'll go see if I can hear it run right now.

[84hurst]

I just checked to see if I could hear it run, it is running but doesn't sound real healthy. It sounds like it's kinda weak. Sound like the cause Ron?

[Prince Valiant]

measure the fuel pressure...

[juicedimpss]

measure the fuel pressure...

x2
another good question would be when is the last time it had a fuel filter change?

[84hurst]

I havent replaces the fuel filter and I've put about 17k on it in 3 years. I'll check the fuel pressure after dinner and report back!

[H8RADE]

'My car is vibrating...someone diagnose it...'
Fuel filter would be my first choice, due to the age and miles/years.
Also, it's cheap.
Then, move on to the fuel pump and check pressure.
Maybe it's all 3.
The Opti is a mess, and if you do it, do it right with plugs, wires, etc.
Maybe a 150 shot would 'mask' that hesitation?

[84hurst]

haha, I'll try the 150 shot! But really, I figured it out. The fuel pump didn't sound good because THERE WAS NO F*CKING GAS IN THE TANK! The shroeder valve was spitting out gas and air. I can thank my bro for that one, he was the last to drive it. The guage on it does kinda suck, when it reads a quarter tank, you best fill up before you run out, the guage read less than a 1/16 when I was having the "problem".