Tested it again by plugging the IAC port and the front valve cover port, …and it won’t stall. Stutters around 500-600 rpm. I have a vacuum leak somewhere – must be under the plenum. F#$K!!!!!!!!!!
Another Fiero vacuum leak test
![](https://www.justinchristie.ca/wp-content/uploads/2007/07/20070728_fiero_vac_test_thumb.jpg)
Tested it again by plugging the IAC port and the front valve cover port, …and it won’t stall. Stutters around 500-600 rpm. I have a vacuum leak somewhere – must be under the plenum. F#$K!!!!!!!!!!