Repost: power loss issue

[1979C20]

Vile, about my friends jeep, what is the modulator? Like I said, don't know much about trans.

[VileZambonie]

Can you find out what trans he has? I don't want to hijack this thread so make a post about it in General Discussion but the vacuum modulator delays upshifts and helps with downshifts in response to engine load. It gets it's signal from a manifold vacuum source.

[1979C20]

Okay vile. Ill find out what trans it is and post it in general. Sorry for post stealing! Ha. Thanks guys. Good luck with your trans/engine issues.

[nativetexan]

Got a trouble code 44 today. I havent checked the fuel pressure yet. i am waiting for it to come back to my autozone down the street. I checked the code definition online and it said O2 sensor-too lean. Your thoughts? I will check pressure tomorrow.

[VileZambonie]

Low fuel pressure/ large vacuum leak

[nativetexan]

something strange (i noticed), I double checked my vaccuum lines and I didn't have my EGR solenoid connected. I connected it and it seems to have made it worse.

[nativetexan]

Also, it blows my mind that it runs awesome everytime I disconnect the fuel line. I took the back side of the filter off so I could see what it looks like when I turn the pump on. A little bit more than a dribble.  But the wierd thing is when I connect it back, it runs like a champ! I wonder why...

But yeah, I am dealing with a low pressure issue. Should I replace the pump or should I do some more checking?

[nativetexan]

Bump... please.

[VileZambonie]

Your EGR solenoid was probably disconnected because it's most likely stuck open making it open the EGR valve = run like poop.

Replace your fuel pump

[nativetexan]

Thanks man! Should I replace the solenoid too?? 

    MERRY CHRISTMAS!!!     

[VileZambonie]

Not until you test it.

[nativetexan]

RIGHT!

[nativetexan]

So, I am still having a power loss issue. I know it has something to do with the fuel pressure cuz I put a pressure guage on the line and am losing pressure when I rev it. Dropped the tank, replaced the pump motor, but not the assembly. Still the same no improvement.

Any Ideas?

[Irish_Alley]

the only post i seen is about the tv cable? is there another one or is that it. refresh our memory about your problem. go ahead were listening

[nativetexan]

When I rev my pedal, it goes and then it bogs like its not getting fuel. When I drive it does the same thing. If I try to get on it, it just bogs out like it has no power. The last advice I got was that it was the fuel pump, so I replaced the motor not the whole assembly. I have plugged up all the ports on the TBI that I am not using (Smog stuff). I tried running chemtool through it to see if the lines were clogged. The only time I have gotten rid of it was when I took the filter out to replace it thinking the filter was clogged. But it only lasts for the first drive. After I shut it off, it does it again. its a remanufactured 350 that I put in myself with the original TBI on it. I tried not to frankenstein it too much. The only thing I question is the lack of the smog equipment on there with all the vacum ports plugged on the throttle body. And thats pretty much it.