Check Engine Light-Rough Idle...

[024x4beast]

2002 Ford Explorer 4.0 v6 4x4 with towing package.

My CEL is on with the code p1131 for the EVA and CAT, it's causing it to idle rough and almost stall when coming to a stop. At times it will jump when I have the brake depressed at a stop as well.

I know that there are two lines on top of the transmission, one goes to the transfer case and the other goes to the transmission. Does anybody know where those two lines connect at going away from the transfer case and transmission?

I hear a lot of hissing as though I have a vacuum leak under the driver seat/center console.

If anyone has a diagram of the vac lines could you please share with me?

What would be the best route to get to those lines to replace them?

 

[waskly]

the two lines on the trans/transfer case are vent lines. they go into the trans bell housing.

p1131 is a o2 sensor code i think off the top of my head.

could be a clogged cat, which is why you are going to stall, too much back pressure.