gt350pilot
New CEG'er
- Joined
- Oct 11, 2013
- Messages
- 26
I have done a lot of work to tune up my 98 CSVT since I purchased it but have one lingering issue. Runs fantastic except when I have the A/C or Defrost on. At those times it idles fine but has an intermittent stumble under load or constant throttle. I have installed new Motorcraft plugs (properly gapped), new wires, upper 02 sensors, fuel filter, cleaned the TB and Mass Air and cleaned and lightly oiled the K&N. I also did the throttle hang fix involving the drilled brass caps. The car only has 84K miles and in all other respects runs perfect. Without the A/C on it pulls perfectly and so I don't feel it is a fuel issue It isn't a huge issue but I am pretty particular about how my cars run.
Anybody have any thoughts? Possibly dirty UIM or LIM? No codes by the way.
Thanks for your time.
Anybody have any thoughts? Possibly dirty UIM or LIM? No codes by the way.
Thanks for your time.