My solution to the fast 92 high idle problem
My solution to the fast 92 high idle problem So last year I installed a fast 92/92 setup along with a new cam and heads. Car ran good and had the typical hanging idle. searched for vacuum leaks for hours on end so i went to the throttle position sensor and IAC valve. this helped but did not solve the problem. I then swapped the throttle body to a NW 92 (black anodized looks awesome) This made it more drivable. Still had a hang but only at 1500 rpm or so. I took the car out this summer and it got really bad, 3000 rpm plus. So I was pissed and I started feeling around the intake and double checking everything. The car was running and I came across the map sensor. when I touched it idle went up. It was hanging out of the hole(but in enough a propane test would not effect it). I pushed it all the way back in and started the car, revved it a few times and it popped back out. A trip to ACE and a spacer and bracket was made to hold the MAP in.
Long story short If you put a FAST on your car and you think that MAP should be clicked in there it should. just do it from the start. I spent 5+ hours on this now and it cost me 400+ extra after throttle body and all sensors.
thought i would share.
Long story short If you put a FAST on your car and you think that MAP should be clicked in there it should. just do it from the start. I spent 5+ hours on this now and it cost me 400+ extra after throttle body and all sensors.
thought i would share. Yeah, I bent a bracket out of some steel bar stock and put industrial strength velcro (soft side) under it to protect the sensor. Then a small beet of RTV for peace of mind. It's not a tight fit like on the OEM intakes without some added protection. FAST intakes are a PIA to fine tune sometimes.
I remember thinking when I was putting the MAP in when I was rebuilding "this does not look right, but it has to be". I wish then and there I stopped and done something like this. In the end I ended up with a kick *** throttle body and a lot of wasted time (mine and the tuner).
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Yes, I did. It was a Fast 90mm but there were other threads where reputable tuners were having the same problem from the 92mm.
All in all I wouldn't recommend a Fast TB to anyone.
All in all I wouldn't recommend a Fast TB to anyone.
