is FTC 19 idle? getting knock
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
is FTC 19 idle? getting knock well cat3 advised me to log my ftc and knock retard, i am in fuel trim cell 19 when i get knock and i thought that was idle. so im thinking im getting kr becuase my car is using timing in the idle tables thats high. let me knowplease, thanks
Originally Posted by WS6FirebirdTA00
well cat3 advised me to log my ftc and knock retard, i am in fuel trim cell 19 when i get knock and i thought that was idle. so im thinking im getting kr becuase my car is using timing in the idle tables thats high. let me knowplease, thanks
• FTC 0 - 2 slight deceleration, little to no load
• FTC 3 low load, power enrichment
Fuel Trim Group 2, Cells 4 - 7
• FTC 4 low load, part throttle
• FTC 5 low load, part throttle
• FTC 6 moderate load, part throttle
• FTC 7 moderate load, part throttle, power enrichment
Fuel Trim Group 3, Cells 8 - 11
• FTC 8 - 10 moderate load, part throttle
• FTC 11 moderate load, part throttle, power enrichment
Fuel Trim Group 4, Cells 12 - 15
• FTC 12 - 14 higher load, power enrichment
• FTC 15 higher load, power enrichment, wide open throttle (EPA definition @ 100% Load)
Fuel Trim Group 5, Cells 16 - 19
• FTC 16, Automatic transmission in "Park" or "Neutral", hot idle, a/c on
• FTC 17, Automatic transmission in "Park" or "Neutral", hot idle, a/c off
• FTC 18 hot idle, a/c on (Manual or Automatic transmission in "Drive")
• FTC 19 hot idle, a/c off (Manual or Automatic transmission in "Drive")
Fuel Trim Group 6, Cells 20 - 22
• FTC 20 cold idle, a/c on or off
• FTC 21 moderate deceleration / no load
• FTC 22 higher load, power enrichment
Originally Posted by WS6FirebirdTA00
you are the man, thanks. so i guess i should decrease timing in the idle tables then in the areas i see it
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
ok im helping someone that is getting FTC 22 when giving the car small amounts of gas and it should not be entering PE, map is under the threshold, have any idea about that?
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Originally Posted by WS6FirebirdTA00
405hp_z06, can you double check on that? the car should have been in an idle cell according to conditions
Are you seeing this at hot idle, cold idle, or both?
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