FreeScan CSV files...
Thread Starter
Registered User
Joined: Apr 2004
Posts: 43
From: Phoenix, AZ
FreeScan CSV files...
Could someone take a look at these two FreeScan CSV logs?
I am just wondering if anyone can see anything out of the ordinary. Take a look at my O2 Left sensor. Looks like upon startup it doesn't move at all. But after I run her up on WOT, it finally starts reading right. Possibly a bad O2? It is still the original O2 w/120k miles on it.
Also if you could just scan and see if you notice anything else that might be out of the ordinary... I'm getting ready to buy LT1edit to start tuning this thing a little bit. So I want to see what things I may need to change right away.
Can anyone educate me on the knock retard and the knock count?
http://members.***.net/legendman/1strun%20042404.csv
http://members.***.net/legendman/2ndrun%20042404.csv
I am just wondering if anyone can see anything out of the ordinary. Take a look at my O2 Left sensor. Looks like upon startup it doesn't move at all. But after I run her up on WOT, it finally starts reading right. Possibly a bad O2? It is still the original O2 w/120k miles on it.
Also if you could just scan and see if you notice anything else that might be out of the ordinary... I'm getting ready to buy LT1edit to start tuning this thing a little bit. So I want to see what things I may need to change right away.
Can anyone educate me on the knock retard and the knock count?
http://members.***.net/legendman/1strun%20042404.csv
http://members.***.net/legendman/2ndrun%20042404.csv
Registered User
Joined: Dec 1969
Posts: 234
From: Honolulu, Hawaii
At startup the car is in OPEN loop, so this give the 02 sensors time to heat up. During this time the O2 sensors are not in use, so what you see is normal. Also, when taking WOT logs make sure that your out of OPEN loop before going or else the WOT logs are kind of useless. 
From what I can see it seems like your getting a lot of Knock Retard. This pulls timing and causes you to lose HP. The thing you need to do is to find out if its real Knock or false knock. Most people put in Race Gas 100+ octane in their car and do some logs. If you still see Knock in the logs then it could very well be false. But make sure you fixed all mechanical problems like noisy rockers and stuff.
Since you have a CAM in there their did you put in the LT4 Knock module? It'll a bit less sensitive then the stock unit . This will help lower some false knock.
From what I can see it seems like your getting a lot of Knock Retard. This pulls timing and causes you to lose HP. The thing you need to do is to find out if its real Knock or false knock. Most people put in Race Gas 100+ octane in their car and do some logs. If you still see Knock in the logs then it could very well be false. But make sure you fixed all mechanical problems like noisy rockers and stuff. Since you have a CAM in there their did you put in the LT4 Knock module? It'll a bit less sensitive then the stock unit . This will help lower some false knock.
Thread Starter
Registered User
Joined: Apr 2004
Posts: 43
From: Phoenix, AZ
Originally posted by Wilson
At startup the car is in OPEN loop, so this give the 02 sensors time to heat up. During this time the O2 sensors are not in use, so what you see is normal. Also, when taking WOT logs make sure that your out of OPEN loop before going or else the WOT logs are kind of useless. From what I can see it seems like your getting a lot of Knock Retard. This pulls timing and causes you to lose HP. The thing you need to do is to find out if its real Knock or false knock. Most people put in Race Gas 100+ octane in their car and do some logs. If you still see Knock in the logs then it could very well be false. But make sure you fixed all mechanical problems like noisy rockers and stuff.
Since you have a CAM in there their did you put in the LT4 Knock module? It'll a bit less sensitive then the stock unit . This will help lower some false knock.
At startup the car is in OPEN loop, so this give the 02 sensors time to heat up. During this time the O2 sensors are not in use, so what you see is normal. Also, when taking WOT logs make sure that your out of OPEN loop before going or else the WOT logs are kind of useless.
From what I can see it seems like your getting a lot of Knock Retard. This pulls timing and causes you to lose HP. The thing you need to do is to find out if its real Knock or false knock. Most people put in Race Gas 100+ octane in their car and do some logs. If you still see Knock in the logs then it could very well be false. But make sure you fixed all mechanical problems like noisy rockers and stuff. Since you have a CAM in there their did you put in the LT4 Knock module? It'll a bit less sensitive then the stock unit . This will help lower some false knock.
On the O2 sensors... I noticed though that the right one starts monitoring right away as opposed to the left one. Is this normal? Cause the right one is new and the left is the original one.
Yes I do have the LT4 Knock module in there. I am putting on new 1.6 RR on Wednesday, so maybe that will help the knock count. Could it also be caused from a rattling exhaust? I haven't had time to get the rattle gone, but will on Wednesday.
Registered User
Joined: Dec 1969
Posts: 234
From: Honolulu, Hawaii
Originally posted by 94LegendMan
I am putting on new 1.6 RR on Wednesday, so maybe that will help the knock count. Could it also be caused from a rattling exhaust? I haven't had time to get the rattle gone, but will on Wednesday.
I am putting on new 1.6 RR on Wednesday, so maybe that will help the knock count. Could it also be caused from a rattling exhaust? I haven't had time to get the rattle gone, but will on Wednesday.
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