give me some ideas-mj bogs and dies when i hit it hard

[brdhntr]

i'm fine driving around, starts and stops, no problem. when i sit at a stop sign, it idles ruff like it set to low. when i hit the gas hard, it takes off no problem, but bogs and starts to die right away. so it gets off the line hard, just bogs within a few seconds. it's an 87 2.5 with 95k miles. :dunno: so any ideas what's going on?

[Geonovast]

Clogged fuel filter is what I'd look at first.

[mvusse]

Or restriction in the exhaust, like a plugged cat.

[ratrapp]

mine was doing this a couple of months ago.i was leaving work and it would usually bog then it would eventually pick up and go but that day the fuel pump decided to finally die.

[dasbulliwagen]

O2 Sensor! My 87 2.5 was like that too. I did all the other stuff they said to no avail. Put an O2 sensor in, and within 60 seconds of statup it started running great and havent had a problem since. Though I would still do the fuel filter also. Changing the cat should be a last resort due to their price, but is also possible.

[mvusse]

Plugged cat is easy to diagnose by temporarily removing it. Don't run it like that at night, though, as you will wake up everyone withing half a mile or so.

[brdhntr]

i already did the fuel filter and new plugs. the problem is still there. i guess i'll look at the o2 sensor and cat. do you need a application specific o2 sensor on these or can you use a universal?

[project88mj]

stop hiting it so hard. what are you :nuts:

[jtdesigns]

My issue was the 90* rubber hose on the fuel pump popped off and wasn't getting 100% pressure. In other words pull a fuel pressure test. :smart:

[dasbulliwagen]

Oem 02 sensor from the dealer is like 40-50 bucks, get a specific app 02 sensor and you won't be disappointed.