Scan Gauge Options Help

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Apr 12, 2010 | 07:04 PM

#61

Hussler

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From: Medford Oregon

Quote:

Originally Posted by RÖENTGEEP

OK, I got that.
BTW I forgot to mention that I reallized that all may work with the scan gauge was made with the CHIP in the economy position, I dont know if it does matter or not and it should be done in the STOCK position?.

Jose, I might be wrong but I think a chip modifies some of the sensor input parameters that the scan gauge reports. So yes, if you want to really see what the sensors are telling the PCM I would put it in "STOCK" mode. I don't have a chip so I can't do a comparison between different settings.

Apr 13, 2010 | 08:59 AM

#62

Talyn

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From: Ashland City, TN

as much as I like you guys around here.
fuel is 3.15 a gallon, and i'm not running all my modes to see the difference. :P

Apr 29, 2010 | 07:29 AM

#63

Talyn

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From: Ashland City, TN

Anyone else notice on the gauges that the coolant temp reads incorrectly at start up till the motor warms up?

Mine will show 200+ sometimes till the coolant flows.
There is no way that I coulda had 200+ temps at startup on coolant.

Apr 29, 2010 | 11:48 AM

#64

DZL JIM

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From: North East Ohio

Wiiillliiiaaammm...
It's been posted a million times that there is no coolant input to the computer...
It will always read incorrectly.
Oil temp yes, coolant temp, no.

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Apr 30, 2010 | 09:50 AM

#65

RÖENTGEEP

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From: Celaya, Gto. MX

Quote:

Originally Posted by Hussler

Jose, I would clear the codes. They could be old codes stored in the PCM. After you drive it and if they come back then you can dig into it. The CCT test requires the engine be fully warmed up (hot), above 180 degrees I think. Otherwise it will fail the test. I doubt your IDM is bad if you can drive it.

PS: I tried the "INVERT" option as Glenn mentioned and the display is much easier to see during the day in bright sunlight. It's a green background with black characters.

Doing my taxes this weekend ...

An update, I cleared the codes and drove it and they didnt come back yet, so I will monitor them periodically.
Also I tried the "invert" option en agree that the display is easier to see.

Apr 30, 2010 | 10:30 AM

#66

Talyn

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From: Ashland City, TN

Quote:

Originally Posted by DZL JIM

Wiiillliiiaaammm...
It's been posted a million times that there is no coolant input to the computer...
It will always read incorrectly.
Oil temp yes, coolant temp, no.

are you positive?
Mine changes the reading to something thats pretty correct when its warmed up.

Its always within 4 degree's of my oil temp as well.

I know you know the trucks better than I do, but it reads incorrectly at first, but the reading changes once the t-stat opens up.

Apr 30, 2010 | 10:43 AM

#67

strokersace

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From: Hutchinson, KS

Quote:

Originally Posted by Talyn

Really? You're going to question the guy who you bought it from? Seriously?

Jim's right, there's no actual coolant temp reading that the pcm sees. It's a false reading that's built into the perameters of the gauge itself. It reads at startup similar to what it'd read at fully warm. It's false reading, nothing more. Just go off of your oil temps.