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Old 04-25-2011, 08:50 PM   #21
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Try changing it

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Old 04-25-2011, 09:21 PM   #22
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^^right, do the easiest thing first. It's much harder to track down a short or something that might not even exist.
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Old 04-25-2011, 09:26 PM   #23
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^^right, do the easiest thing first. It's much harder to track down a short or something that might not even exist.
They are one of the more expensive sensors though
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Old 04-26-2011, 01:21 AM   #24
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They're not too bad actually. Just ordered one from RockAuto for about $28 plus shipping. I'll guess we'll see what happens when it gets here.
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Old 04-26-2011, 03:18 AM   #25
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They're not too bad actually. Just ordered one from RockAuto for about $28 plus shipping. I'll guess we'll see what happens when it gets here.
REALLY! I thought they were around $100. Was it a PITA to get to it?
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Old 04-26-2011, 07:49 AM   #26
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REALLY! I thought they were around $100. Was it a PITA to get to it?
Its basically right next to your oil filter.
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Old 04-26-2011, 07:17 PM   #27
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Its basically right next to your oil filter.
oh you have the older motor. I have the duratec i think mine is more work.
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Old 04-27-2011, 01:18 AM   #28
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Quote:
Originally Posted by EggYolkedZX3 View Post
I'm wondering what others who datalog with the first "KNOCK SENSOR RETARD LIMIT" DMR in the SBAF6 processor code list see as far as values or on the graph while doing a normal cruise datalog. My issue currently is when I log the KS (on either the stock tune or on Tom's tune, doesn't matter), it shows that I'm always knocking and pulling -5 degrees of timing usually right around 2000 rpm or above.
SBAF6 has two DMRs that are described as KNOCK SENSOR RETARD LIMIT. I've talked to SCT about this at least 10 times over the last 3 years and all they have done was change the name of one of them, not the description. You need to take a closer look at the names, or download the latest livelink if you cannot see the difference I outline below.

KNK_RET_LIM is the first one. There is a table in the ECU with axes of RPM against load that simply limits the amount of knock retard you can get. It is -5 in almost all cells, with a few at low and high rpm at -4. The reason you are seeing -5 on this DMR only when you are moving or transbraking is the sensor is not allowed to be active at all until 0.359 load, and you would be hard pressed to see that much load without the car in gear (Tom already metioned this earlier in the thread). So basically whenever you are driving, as you describe, this should rightly show -5.

KNK_SEN_RETARD is the second one, the one you actually want to log, this is the actual knock retard. This one you ought to be able to at least see it ramp down (instead of jump down) to -5, and ramp slowly back up (instead of jump up) when you let off the throttle, if it is indeed pulling full knock retard.
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Old 04-27-2011, 04:06 AM   #29
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Well im not sure what your looking for and i dont even know what all this says. I probobly dont even have the same setup logs as you.

Here is the last one i ran a few nights ago.

All of my KS settings are just flat all the way across
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Old 04-27-2011, 07:10 AM   #30
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Bower you have a Duratec and your KS readings will be diff

He has the correct KS logged in his list

Tom
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