kind of a stupid question...

[feardafish]

Hey guys, ive searched all over the forums, and i havnt found what im looking for. Im currently battling an idle issue, and came to find out the other day that my BISS screw was completely backed out. so i turned off my car, tightened it just slightly (not even finger tight) and it seemed to make a huge difference. I am wondering however, how tight it should be? Of all the posts ive seen, alot of them say that it will say in the repair manual, but ive looked and looked for it in there and cant find anything about the BISS screw! Can someone check their repair manual and tell me what page its on????

 

[Benshooter]

2G BISS Adjustment

vfaq is your friend.

 

[fredom dsm]

Hey guys, ive searched all over the forums, and i havnt found what im looking for. Im currently battling an idle issue, and came to find out the other day that my BISS screw was completely backed out. so i turned off my car, tightened it just slightly (not even finger tight) and it seemed to make a huge difference. I am wondering however, how tight it should be? Of all the posts ive seen, alot of them say that it will say in the repair manual, but ive looked and looked for it in there and cant find anything about the BISS screw! Can someone check their repair manual and tell me what page its on????

If Im not mistaken, that controls the idle on the car, the screw does not have to be tight, but your idle does have to be like at 850-975 rpm at idle. Someone corect me if I'm wrong!!!

 

[feardafish]

2G BISS Adjustment

vfaq is your friend.

Yes ive read this before, and i dont have access to this $1800 scan tool they speak of. I just need to know how tight the screw was from factory, my car is bone stock.

 

[steve]

Roughly the BISS is about a turn and a half from all the way in on the cars I've worked on.
The o-ring on the top often dries out making the BISS easy to turn and doesn't seal well.

 

[J-VilleDivision]

Slowboy Racing, Inc. :: Search results

If it keeps backing out you can buy a new one here.

 

[feardafish]

Roughly the BISS is about a turn and a half from all the way in on the cars I've worked on.
The o-ring on the top often dries out making the BISS easy to turn and doesn't seal well.

Ok cool thanks very much, i will check the o-ring also.

If Im not mistaken, that controls the idle on the car, the screw does not have to be tight, but your idle does have to be like at 850-975 rpm at idle. Someone corect me if I'm wrong!!!

i believe its set from factory at around 750

 

[steve]

i believe its set from factory at around 750

Your correct and the ECU is programmed to maintain that. If your idle is something different and you don't have a reprogrammed ECU you've caused the ISC to run out of range and it's no longer functional.