Vacum line diagrams 89 VG 30 I

[krmiller07]

At one time someone had posted a FSM on here, I think it was 88path? Any ways I need a diagram of the vacum lines for emissions and all of the TBI system. I am trying to figure out what order and place the vacum lines from under the air cleaner canister (stock) go to. Specificaly the one coming up from the engine near the EGR valve to the bottom of the air cleaner. There are 2 nipples under the canister. One line goes to the vacum modulator for the warm air valve in the air cleaner snorkel, and the other line is suppose to hook up to a vacum port near the EGR valve.

I am trying to determine what vacum line goes where on the air cleaner canister, and if it makes all that much difference in the way it runs during the warm up cycle? Right now, after sitting over night and cold. As soon as the engine lights off, it idles at about 15-1800 rpm. But then it soon idles down to around 12-1300 rpm's and starts to stummble and idle rough. It acts like it's struggling or clear out, by idleing up to 1800, and then back down to 1200 rpms. If I hold the throttle steady at 2000 rpms with the pedal it runs fine with no missing. Once it's warm it idles so smooth, it's hard to tell it's running! I've cleand all the connections and MAF sensor as well as all the things mentioned on here in relation to the TBI system. : (. It has been doing this intermittently for several months. I've chased vacum leaks and just about everything else I've read here, including cleaning connections etc...

 

Pics would be appreciated also, if possible!

 

Thanks,

 

krmiller07

[ahardb0dy]

This diagram was taken from the Autozone web site, it is for a 89 pathfinder: