New to Tuning and Having Problems
Thread Starter
12 Second Club
Joined: Aug 2003
Posts: 270
Likes: 0
From: Chicago IL
New to Tuning and Having Problems I got my H/C installed and running last weekend. I have been trying to tune using the Tuning 101 doc, but things aren't going as planned. My car is very very slow & falls on its face on acceleration. My LTFTs keep saying 10-15 even after I adjust the VE table by +10.
I am starting to think something mechanical is wrong. Attached is my initial log, I thought the car was just running poorly because it needed tunning so I started to tune, now that i look at the inital log something is deffenitly messed up.
With the ammount of fuel I am dumming into the motor I will not be surprised if I have to replace the plugs and O2s.
InitialTune
InitialLog
LatestTune
LatestLog
I am starting to think something mechanical is wrong. Attached is my initial log, I thought the car was just running poorly because it needed tunning so I started to tune, now that i look at the inital log something is deffenitly messed up.
With the ammount of fuel I am dumming into the motor I will not be surprised if I have to replace the plugs and O2s.
InitialTune
InitialLog
LatestTune
LatestLog
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
possibly a vacuum leak... both fuel trims are crazy rich, and the O2 sensors are switching very irradically
Though in SD , since hte MAF isn't used , only the MAP... i wouldn't think it'd be as big of a deal....
Possibly both exhaust manifolds leaking? or bad seal at both collectors?
Though in SD , since hte MAF isn't used , only the MAP... i wouldn't think it'd be as big of a deal....
Possibly both exhaust manifolds leaking? or bad seal at both collectors?
Last edited by horist; May 10, 2005 at 12:59 PM.
