NOTE: I have a wideband, at idle and cruising it stays at 14.7ish, I believe it is calibrated properly.
hey guys, so I got the cobra tuned by Jon Lund in November timeframe, all was PERFECT, I mean an A/F of 11.5 across the board, etc..
Well about 2 months ago I noticed that the my A/F was dropping into the 10's then coming back up to 11.5. So, from about 3,000 - 5,500 it was dropping into the 10's, then coming back up.
I've also noticed my car stumbling just a little, sometimes around 1800rpms, drivability is fine, cruising is fine, idle is fine, etc...
I don't know what to think, any thoughts? Plugs are about 1500 miles old.
Maybe a coil acting up? Any way to test them??
could a plug not firing properly cause the rich condition? How noticable would it be? My wideband is on the drivers bank header, so I would venture to guess it would be that side..
Thanks!!
hey guys, so I got the cobra tuned by Jon Lund in November timeframe, all was PERFECT, I mean an A/F of 11.5 across the board, etc..
Well about 2 months ago I noticed that the my A/F was dropping into the 10's then coming back up to 11.5. So, from about 3,000 - 5,500 it was dropping into the 10's, then coming back up.
I've also noticed my car stumbling just a little, sometimes around 1800rpms, drivability is fine, cruising is fine, idle is fine, etc...
I don't know what to think, any thoughts? Plugs are about 1500 miles old.
Maybe a coil acting up? Any way to test them??
could a plug not firing properly cause the rich condition? How noticable would it be? My wideband is on the drivers bank header, so I would venture to guess it would be that side..
Thanks!!
