LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Scanmaster readings, normal?

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Old Mar 17, 2013 | 03:38 PM
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Default Scanmaster readings, normal?

Ignore my company in the video....
where are you at Ed?

Edit; I guess I was just expecting any knock retard to happen under load and not idling.





Last edited by 02v8ta; Mar 17, 2013 at 11:03 PM.
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Old Mar 19, 2013 | 02:51 PM
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mine does the same thing is this true or is it false knock??
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Old Mar 19, 2013 | 10:34 PM
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Default Has the computer had a tune?

Values are opposite of expected. It goes lean at 3500rpm with zero retard. Then back to rich at idle with retard - where it normally uses advance without load.

Take a look at the rpm and see if it matches your tach - scanmaster may be connected wrong.

Interesting to follow this thread and to see how the scanmaster works - like i can't tell which O2 it reads, right or left? But its really nice to have that info right on the dash real time - if/when it works. Could be cool tool.

Thx for posting,
cardo
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Old Mar 20, 2013 | 09:15 AM
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Originally Posted by cardo0
Values are opposite of expected. It goes lean at 3500rpm with zero retard. Then back to rich at idle with retard - where it normally uses advance without load.

Take a look at the rpm and see if it matches your tach - scanmaster may be connected wrong.

Interesting to follow this thread and to see how the scanmaster works - like i can't tell which O2 it reads, right or left? But its really nice to have that info right on the dash real time - if/when it works. Could be cool tool.

Thx for posting,
cardo
Thanks ill have to check what rpm the scanmaster is seeing.

Originally Posted by unioncarpenter84
mine does the same thing is this true or is it false knock??
Glad I'm not alone.
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Old Mar 20, 2013 | 09:23 AM
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Mine does not do that, its zero at idling 99.9% of the time. Anytime I did notice KR at idle, it was always exhaust related like a pipe hitting the chassis. Might put a wide band O2 on it to determine accurate A/F.

I seriously doubt this is a connection issue.
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Old Mar 20, 2013 | 09:27 AM
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Originally Posted by wrd1972
Mine does not do that, its zero at idling 99.9% of the time. Anytime I did notice KR at idle, it was always exhaust related like a pipe hitting the chassis. Might put a wide band O2 on it to determine accurate A/F.

I seriously doubt this is a connection issue.
The exhaust is something ill be messing with soon anyway probably but I didn't notice any contact with the headers and the body. Right now it's just LTs x pipe dumped at the rear.
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Old Mar 21, 2013 | 05:51 PM
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ya mine exhaust never hit it seems like after u run the car for thirty minutes and it gets warm then u sit there it says a couple of degrees
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Old Mar 21, 2013 | 07:09 PM
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It would be tough to make one detonate at idle. It is most certainly false knock. If a cammed car does that the tuner has his head up his butt. Don't care how loud it is.
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Old Mar 21, 2013 | 07:18 PM
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ya pcmforless did mine and they even deconizatized my knock sensor

hey ed if i buy tuner cats or a cable could i send my tune to u with out sending u the pcm??
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Old Mar 21, 2013 | 07:20 PM
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Pcmforless did mine as well on this car.
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Old Mar 21, 2013 | 07:23 PM
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Originally Posted by unioncarpenter84
ya pcmforless did mine and they even deconizatized my knock sensor

hey ed if i buy tuner cats or a cable could i send my tune to u with out sending u the pcm??
I'll get another *** chewing if I answer you. LOL
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Old Mar 21, 2013 | 07:24 PM
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ya i dunnno what there doing wrong. ur car isnt at 180 in the pics

we gotta solve this some how
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Old Mar 21, 2013 | 07:25 PM
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Originally Posted by Ed Wright
I'll get another *** chewing if I answer you. LOL
haha by who?
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Old Mar 21, 2013 | 07:33 PM
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Originally Posted by unioncarpenter84
ya pcmforless did mine and they even deconizatized my knock sensor

hey ed if i buy tuner cats or a cable could i send my tune to u with out sending u the pcm??
Whoever runs this place. I'm not a sponsor.
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Old Mar 21, 2013 | 11:02 PM
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Ed did my pcm, my scanmaster never did anything crazy at idle.
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Old Mar 22, 2013 | 01:04 PM
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How do i retrive the codes using the scanmaster? The website with the info on them isn't working for me and i don't recall how.
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Old Mar 23, 2013 | 12:05 AM
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Default Turning the engine off erases all stored data.

Mode button is on the left. Press the Mode button to identify the mode and the right display shows the data.

I won't post the instruction manual in case of copyright law. But i can PM u with the instructions in plain text if u want.

cardo
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Old Mar 23, 2013 | 03:26 PM
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ya if there are any codes it will say dtc on ur left and the code on the right
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