Latest project.....more cooling.
#11
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Originally Posted by 2000SilverBullet
The ZZP switch I installed works the same way, and it'* not very expensive.
.....but I know Will prefers to do his own electronics.![Wink](https://www.gmforum.com/gm/images/smilies/icon_wink.gif)
.....but I know Will prefers to do his own electronics.
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#12
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Finished it. I have full low and high speed fan control from a single switch. Works great. Taking my time (with Pooky'* help) it was a 2-beer project.
Pics to come after a good country drive
Pics to come after a good country drive
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#14
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Yikes. Manual low speed on the fans is setting the SES light and a Code 26 QDM A fault. It is the low speed override doing it. No other sypmtoms, and high speed doesn't do it.
Very odd......fans work great in low or high, but low sets a 26?????
Very odd......fans work great in low or high, but low sets a 26?????
#15
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Originally Posted by willwren
Finished it. I have full low and high speed fan control from a single switch. Works great. Taking my time (with Pooky'* help) it was a 2-beer project.
Pics to come after a good country drive![Wink](https://www.gmforum.com/gm/images/smilies/wink.gif)
Pics to come after a good country drive
![Wink](https://www.gmforum.com/gm/images/smilies/wink.gif)
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#17
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The current code goes away when I switch to off (normal) or high from low. I can also watch the QDM toggle from ok to bad on the scantool. Then it leaves the code in history.
All other data is perfect. It'* a phantom.
The high speed circuit is very simple, the low speed is a different story. The PCM actually watches the low speed fan relay for the proper voltage. I'm forcing it on when the PCM doesn't want it on. The other items the Quad Driver A module monitors are the Evap canister purge solonoid, the HIGH TEMP light, and TCC apply. Note that it does NOT monitor the high speed fan relay. Only the low speed is considered critical?
Quad B covers the shift solonoids and EGR valve.
All other data is perfect. It'* a phantom.
The high speed circuit is very simple, the low speed is a different story. The PCM actually watches the low speed fan relay for the proper voltage. I'm forcing it on when the PCM doesn't want it on. The other items the Quad Driver A module monitors are the Evap canister purge solonoid, the HIGH TEMP light, and TCC apply. Note that it does NOT monitor the high speed fan relay. Only the low speed is considered critical?
Quad B covers the shift solonoids and EGR valve.
#20
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What about if you put single electric fan that works like vacume suck in the air in one of those tubes you made to cool your supercharger. Put it all the way at begining so you can control it with the switch turn on the switch and it helps the tubes suck air in like vacume does and i bet you your temperature would be much less at supercharger than is now.