Gonna need to pull a rabbit out of a hat on this one!!!
Thread Starter
Staging Lane
Joined: Jul 2003
Posts: 71
Likes: 0
From: Plymouth, N.C.
Gonna need to pull a rabbit out of a hat on this one!!! Ok I have my car dynoed when it was bone stock a year ago and it made 314. Stock airlid and all. Went to the Dyno a year later with longtubes,airlid, GMS MAF, fuel pump, Ported TB, and now it is down to 298RWHP. What the hell?? Last week the car was running unusually rich so I checked it out and the header had burnt an 02 wire, so I fix that put new plugs in the motor and its running fine again. Now this past Sunday I take it to the Dyno and find the hp loss out. When I come to a stop it acts like the car is searching for idle from 400 to 1000 off and on. Any light at the end of the tunnel on this?? Help would surely be appreciated!! 
Thread Starter
Staging Lane
Joined: Jul 2003
Posts: 71
Likes: 0
From: Plymouth, N.C.
Thanks for the quick help guys! I will run home and get the graph now, it was rich tho. Also my first dyno chart had really smooth lines and the new on the lines are jagged all the way through the RPM band............I checked the fuses, reset the computer.
Thread Starter
Staging Lane
Joined: Jul 2003
Posts: 71
Likes: 0
From: Plymouth, N.C.
I did remove all of the AIR stuff on the car and plugged off the one vacumn line on the drivers side towards the rear of the motor....Think I just need a good tune, didnt think I would need a tune that bad tho.........?
Teching In
Joined: Jan 2005
Posts: 18
Likes: 0
From: glendale AZ
Originally Posted by EZMONEY
Ok I have my car dynoed when it was bone stock a year ago and it made 314. Stock airlid and all. Went to the Dyno a year later with longtubes,airlid, GMS MAF, fuel pump, Ported TB, and now it is down to 298RWHP. What the hell?? Last week the car was running unusually rich so I checked it out and the header had burnt an 02 wire, so I fix that put new plugs in the motor and its running fine again. Now this past Sunday I take it to the Dyno and find the hp loss out. When I come to a stop it acts like the car is searching for idle from 400 to 1000 off and on. Any light at the end of the tunnel on this?? Help would surely be appreciated!!
or did you replace the sensor
