VERY!!!! rough idle

[killbillet]

I just installed a e fan setup, I left the fan clutch on but took the blades off just for now to see how the fans go....I also took my vc off to check my chain tensioner because im getting the famous chain tick but both of my upper guides are already removed......so i didnt bother cleaning the tensioner because it was getting dark, so , i removed my vc and thats it.....now when the car is running hot for a while normal running temp, at a stop light it wants to idol so rough that it almost cuts off.......and sits there until i take off again.....im at a loss, ill look at it more tom but idk.... maf problem??? to rough for tps sensor......

UPDATED INFO: I can slow to a stop and idle is fine, its when I apply My brakes that it does it....and info on that?lolI advanced my timing as far as it will go.....fixed it a little, but it still wants to act up
Modified by killbillet at 3:27 PM 3/19/2009

[lancet913]

Does it happen all the time or just when the e-fan is on?

[killbillet]

it seemed like just when the fan is on, i have it wired up with the ac fan....i was thinking about straight wiring it to a switch tom to see if that is the problem

[lancet913]

I have altima e-fans on my car. When the cooling fan comes on the RPM's drop a bit but it dosn't want to cut off.

[killbillet]

im just going to go through everything with the firing and see whats causing it, might be a misfire at idol.......i know one thing, my annoying tick from the cam chain is extra loud and even more annoying..I just didnt have the time to fix that yesterday

[handinpants]

do you have an air idle control valve?

[killbillet]

my aiv.....egr and all that crap are still there, im not taking it off until the new motor goes in.....and that will be a while. Im just trying to get as much load off of this motor as I can since it has over 200xxx miles. Im going to check all my vacuum lines today.. But it seems to me to be a timing issue im just trying to get a second opinion

[killbillet]

I updated the info, only does it when breaks are applied....so what im thinking is the check valve, plastic pos

[svfd5140]

Are you losing vacume at yoour brake master cylinder.