1995 Nissan Pathfinder Issues...please HELP!

[rocky_mtn_a4]

Ok so a little background info first...Truck broke down on me coming home from work, turned out to be the rotor. Replaced it, truck started hiccuping around 2500 rpms...done the distributor cap, fuel filter, used EGR valve cleaned real well from the junk yard, a couple new vacuum lines, new coil wire...problem is it runs fine when its cold, but once it warms up it starts running like crap anything above idle. Idle's fine, just once you hit 2500 rpms it starts bouncing the tach around and smells like gas profusely. If you lay on the throttle heavily while its hiccuping, it'll backfire loud as heck out of the airbox...any advice? Please and thank you.

[Towncivilian]

Any CEL? Blinking?

Check for fuel line leaks, which could be causing your gasoline smell. The hoses at your fuel filter may not be tight enough or are clamped at the wrong place (see MA-16 for clamp torque specs and distance).

Try cleaning your MAF sensor, be sure to use MAF cleaner.

You may have better luck posting over at NPORA. Not many of us here have WD21s, mostly R50s on this board.

[rocky_mtn_a4]

No CEL...yea I thought that was weird too. It's actually a friend of mines truck and it's sitting in my driveway this weekend and I'd love to get it on its way. I have my own issues to deal with. =) Anyhow, I'm going to double check his work tomorrow with the fuel filter, check for vacuum leaks and whatnot. The fuel smell is whats tripping me out. That and the bouncing RPM's w/ backfire through the airbox. Has me perplexed. At first I thought it could be ignition, but how would engine temperature affect that? So I moved on to fuel or vacuum. It's almost exactly like it's running on 5 cyl. rather than 6. I'll check wires and plugs tomorrow as well.

[Towncivilian]

I'm not sure whether the WD21s blink the CEL when there's a misfire as the R50s do. I also thought it could be a misfire and was going to suggest checking wires & plugs, but forgot to note that down! Good thing you thought of it.