Strange fueling problem...
Thread Starter
TECH Resident
Joined: Jan 2002
Posts: 922
Likes: 0
From: In front of my computer
Strange fueling problem... Finally got the car to pull with no Knock from a stop thru the gears....or so I thought.
I am gettin no knock anywhere except the top of 3rd gear. From about 5500 RPM on up I am showing anywhere from 2 to 5 degrees of knock
Usually 4.
Would this be a sign of a weakening pump or bad plugs? Or is it just a tuning issue? I have my LTrims at - 2 to - 4 all day long.
Last week at the track I was runnin 118 and it would miss a little at about the 1000' mark. Right where 5700 is in 3rd. I know this is a 120 mph car I just got to get rid of the knock.
Pulled the plugs and they read pretty good.
Can anyone recall a similar situation?
Thanks, Stu
I am gettin no knock anywhere except the top of 3rd gear. From about 5500 RPM on up I am showing anywhere from 2 to 5 degrees of knock
Usually 4.Would this be a sign of a weakening pump or bad plugs? Or is it just a tuning issue? I have my LTrims at - 2 to - 4 all day long.
Last week at the track I was runnin 118 and it would miss a little at about the 1000' mark. Right where 5700 is in 3rd. I know this is a 120 mph car I just got to get rid of the knock.
Pulled the plugs and they read pretty good.
Can anyone recall a similar situation?
Thanks, Stu
I'm guessing it's an A4.All wot tuning should be 3rd gear for tuning out knock.That is where the most load is.
Sounds like you just need to add fuel in the PE table from 5200rpm and up.
Sounds like you just need to add fuel in the PE table from 5200rpm and up.
Thread Starter
TECH Resident
Joined: Jan 2002
Posts: 922
Likes: 0
From: In front of my computer
Originally Posted by GrannySShifting
just put it on a dyno or somethign just so you can get a good spot what the fuelign is doing at those rpm points
