not sure exactly how to describe this but my '93 22re is acting like it's running out of gas when I initially start accelerating. it idles fine, normally runs fine at higher speeds. I've been running it like this for months, just thought it was a minor issue with the fuel system, but now it seems to be getting worse. any ideas? now I'm worried about damage from running it long term like that.

thanks.

 

I hope someone helps you my truck does the same thing and my mpg has dropped badly also

 

OP, what have you done to diagnosis the problem?
Condition of spark plugs, wires and other ignition components?
Timing correct?
Vacuum leak?
Ground wires all connected and not corroded?
Clean air filter?
Fuel filter dirty?

In other words, start with basic maintenance items and go from there.

 

I had same issue too. I went through changing my spark plugs and wires and cap, even goofed up my VAF sensor! The cause of problem was FUEL FILTER!
Good luck!

 

I have changed plugs , wires , rotor cap& button fuel filter next and is there a shade tree way to check for codes

 

Goin off on a limb here.. If youre mpg is dropping and pickup is acting funky, probably getting too much gas?? Im a carb kinda guy, and thats what happens with carbs. Just getting too much gas at all RPM. At higher rpm might run better cause its wide open and running quick, but at pickup theres strain, throttle is more open, but low rpm so maybe floodin out? Try going up a hill, do it on purpose, and check if your plugs are wet right after it happens. And overall check if your plugs are black. If theyre black. Then probably running rich/ too much gas..

 

You may b on to something I just got the truck and I noticed the converter is gone so the o2 senior May be messing up

 

Mine is carb and dont got a cat, but since its carb it dont matter. I also had EFI without cat's either but never gave me that kinda problems...But maybe it could be the o2 sensor since theres no cat.. If the o2 sensor is still good there shouldnt be problems, but if its bad it might do that... It didnt throw a check engine light? did you check the plugs yet??

 

Ok thank you the check eng light is only on now and then

 

My vote is fuel filter. You didn't say backfire but what about when you give it gas on the highway does it stumble as well?

 

No back fire
But yes on the stumble

 

Isn't the cat after the O2 sensor? If so, it should not be the issue. I'd also look to make sure the fuel pressure regulator is working properly.