93 pathy idle problem

[edicer2]

Hey im sure this has been posted before but i am at work and dont have time to read threw them all.

 

So the past week my 93 pathfinder with 200k miles has a bad idleing problem. When i come up to a stop sign or basically whenever i have the clutch in or in neutral the rpms drop from 1100-750 (normal) down to 150 or lower until it finally dies/kills its self. The only way to keep it running when its doing this is reving it up when it gets low. Some times it wont have this problem though but the past 2 days it had done it 4 out of the 6 times i have driven it. It doesnt seem to matter how far i drive it either it does it right away if its going to. Also I was sitting in my drive way tring to figure out what is wrong with it and when i rev it up the vechial tends to shake more than normal and also sounds kinda like its chugging. A few other signs i have noticed is horrible gas mileage. my normal tank was 320 or so and now its down to 100 miles from a 19 gallon tank. The exhuast also doesnt smell right it seems to have a very vowl smell, and a noticable loss of power.

 

A few things i have heard/been told it could be

 

bad injector

bad cat

Throttle body

Idler something...

 

Any other ideas or suggestions?Thanks for the help

[Simon]

Sounds like the MAF sensor to me. When it's doing it, try to jiggle the MAF connector, and straighten the wiring to it. I'd be very surprised if it doesn't go back to normal. It's very common, as the wiring actually hits the hood when you close it. Some people have even had to re-route the ground wire on theirs.

[edicer2]

i think your right i wiggled it around and it helped alot but it still isnt running right. Think its something ill have to replace? Also when i was in there my engine was making a raddling noise. I have heard it for a while but it was really faint. Now it seems quite a bit louder. seems to be in the top of the engine near the intake

Edited March 18, 2008 by edicer2

[88pathoffroad]

Check the rubber tube in the middle of the intake tract to make sure it isn't ripped open on the bottom where you can't see it.

[Slick]

i think your right i wiggled it around and it helped alot but it still isnt running right. Think its something ill have to replace? Also when i was in there my engine was making a raddling noise. I have heard it for a while but it was really faint. Now it seems quite a bit louder. seems to be in the top of the engine near the intake

is it low on oil?

[edicer2]

sorry its been a while i couldnt get the password recovery to work so i had to page through my old emails looking for it. But anyways it works great now i think all i had to do was wiggle that little black rubber thing on the MAF and it worked. It was a little low on oil but not to bad. Thanks for the help guys!