Dan, the flex hose I used is from a mid 80s Firebird (Part number 14056938).
Jack, I believe that is the part I picked up from the local junkyard last week. It doesn't quite line up with the original Fiero air filter canister. Is there something you did to help this out? Its real close but its off by a couple inches (lower).
Thanks!! Im getting close in this little puzzle game.
Dan you found the answer. TI had to use first couple of inches of the original Fiero air duct and then attach the Firebird intake hose to that. Looks good. Here is an image of what I did.
Thanks for the help, I have been trying different things for years and have never been happy with the way things fit together till now. Between Joe and you I can consider this problem fixed!! I'm also hoping this might help my high idle issue since I will no longer be sucking air in from ill fitting intake hoses as I cant find anymore vacuum leaks to explain it.
[This message has been edited by DanFiero (edited 05-17-2020).]
Originally posted by DanFiero: Thanks for the help, I have been trying different things for years and have never been happy with the way things fit together till now. Between Joe and you I can consider this problem fixed!! I'm also hoping this might help my high idle issue since I will no longer be sucking air in from ill fitting intake hoses as I cant find anymore vacuum leaks to explain it.
Maybe this will fix your idle, but probably not. Most 4.9 Idle issues are caused by the idle learn procedure.
I never got mine to work right because one of the steps is to put it in drive and I have a 6 speed. I tried a work around to trick it into thinking its in drive but that didn't work. Also to do this properly the car needs to have all the diagnostics installed which most, (if not all Fieros) don't have. The 4.9 is notorious for crappy idle in the Fiero as a result.
IDLE LEARN PROCEDURE ***4.9L*** 1-outside temp is 50 degrees or greater 2-start engine and idle 13 min 3-at end of 13 min- enter diagnostics (engine running) 4-turn engine off 5-wait min of 20 sec 6-turn ign on (engine off) 7-enter diagnostics 8-turn ign off 9-wait min of 20 seconds 10-turn ign on (engine off) 11-enter diagnostics 12-turn ign off 13-wait min of 20 seconds 14-start engine 15- appy brakes and shift into 'drive' 16- turn the ccp 'off' and allow engine yo idle 1 minute 17- turn the ccp to 'auto' make sure AC comp engages- idle for 1 minute 18- put car in park and turn ign off
Thanks for the info, the one idle learn procedure I had found was way over my head. This one seems to be one I could follow. The only question I have is how do you enter Into diagnostic mode on the Fiero?
Entering diagnostic mode is a major stumbling block. You need to punch some buttons on the a/c unit which most people have not installed the Deville a/c unit. I have one in a box somewhere I was going to marry it to the ECU to see if I could make it work and I parked the car and haven't touched it in years.
Plan b is to removed the ISC controller and manually control the idle. I live where it's warm enough I probably can set it low and not worry about it.
[This message has been edited by jscott1 (edited 05-19-2020).]