Sup everyone! This site is so informative (and entertaining ) and it seems I have a potential problem of my own. The car is a 92' Z28 5.7 t.p.i./auto. Mods so far are edelbrock headers,3" exhaust,no cat(mysteriously "fell" off)
lately, whenever I decrease speed (stoplight or turning into driveways) or put it in reverse,under 900rpms the needle would jump from 500-1000 and die.??????? So I did a code check and came up with 32. I know a "missing cat" can throw this, so I checked my vaccum lines...replaced a connector and hose comming out of the plenum on the passengers side so I thought, CHEE HUUUUU!!! fix!!
-the test run-
idle in park is about 1000, in R or D its maybe 750rpms. I t still died when I stopped.??? Anyone have a clue to whatelse maybe wrong? Faulty EGR solenoid(is it the one bolted to the plenum,in front of the dist,and to the side of the coil?) or a faulty EGR itself? Thanks for any info for this is really itching my brain

 

TTT

 

Sounds like you have some dissconnected vaccum lines...I had the same problem..the vacuum line to my EGR was off