Knock Detected?

[v6bucket]

I've got a problem with the Dato. It was run at a test n tune several months ago, tuning as I went with the car recording an 11.98 at 112mph. When I got home I studied the logs that I'd recorded & noticed that it had "Knock Detected" & "Knock Sensor Circuit" set, subsequently it has retarded the timing, 12 "Knock Retard Value". Before the next meeting I burnt a chip, the same as at the T n T, test fired the car & it ran OK, but when I tried to fire the car up the following day, It wouldn't start like it was miles to rich, no wide band hooked up to the car, so I was only guessing & fitted the previous tune in, to race.
I plugged the laptop into the car today & it is running very rich. The log & bin is below.

JM1v111.bin

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dato2.xdl

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This is the TnT. the 1/4 mile pass is between 1:55 & 2:13. I increased the fuel after this. The Knock sensor wasn't connected but still registers as "Knock Detected"

JM1v111.1.2.bin

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Dato 30712.xdl

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This is the log from today with the engine warming up. It's pig rich.

I then reduced the Injector Constant by 20% with no other changes, & the engine is not quite as rich. Knock sensor still disconnected.

JM1v111.1.3.bin

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Dato 30712.1.xdl

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I then attached the Knock sensor at 1:56, then revs picked up then dropped at 2:05.
Knocked detected is registered but as far as I can tell the knock sensor circuit is turned off, but still operating. Can someone have a look at the tunes & logs above & tell me where I'm going wrong. The tune is a 12p, VP engine with SC14 blower using Methanol with 60lb injectors.

[VL400]

Have you got a knock filter? The knock counts are at approx 200 counts all the time.

If using a NVRAM you will need a memcal plugged in to the header pins of it, and make sure the memcal has the EPROM at the same end as the NVRAM IC (there is a pic in the instructions that show the orientation).

If you dont want knock sensing change "ESC params - Coolant temp to enable knock control" to 151deg

[v6bucket]

I didn't have a memcal plugged in, I'll fit one tomorrow.
"ESC params-Coolant Temp enable" is currently set at 56.00 degC. I'll lift it to 151°C if it's not needed later.

[Holden202T]

yeah if you have it how you do that basically assuming the knock sensor is in place and working, and because you don't have the knock filter effectively there is a circuit error hense the error code and also the 12 degrees retard. 12 degrees retard will also make it richer, but by how much i can't say.

i'd either fit a memcal with knock sensor and use it (and decrease the knock retard value maybe to 4-6 degrees) or just do as VL400 said and turn the knock sensor off all together.

[Holden202T]

hey on a side note, are you and the datto going to gunnedah on the 11 & 12 august ? my brother and i are making the trip there with the gemini and his nitrous v6 commodore!

[v6bucket]

I not going to Gunnedah, I've got to work(unless I'm really sick), but Dato might be going, his daughter has a music exam on the Saturday.

[Holden202T]

hahaha very sick i like that