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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 04-04-2004, 07:36 PM   #11
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Quote:
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.
I thought that kinda money for some wires and a switch is kinda ludacris...
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Old 04-04-2004, 08:07 PM   #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
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Old 04-04-2004, 08:22 PM   #13
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Right on Bill. Enjoy the drive
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Old 04-04-2004, 09:34 PM   #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?????
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Old 04-04-2004, 09:38 PM   #15
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Quote:
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
Nice Bill. I've been thinking I should do this too. And when you say it was a 2-beer job, that means you finished it in 5 minutes then?
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Old 04-05-2004, 12:38 AM   #16
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Is all the wiring inside? Does the code store? Or does it go off the second you flip the switch off, or start the car again?
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Old 04-05-2004, 02:11 AM   #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.
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Old 04-05-2004, 12:39 PM   #18
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Would some type of relay between the PCM and fan fix this?
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Old 04-05-2004, 01:24 PM   #19
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Quote:
Originally Posted by BonneMeMN
Would some type of relay between the PCM and fan fix this?
I was just thinking the same thing.
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Old 04-05-2004, 04:25 PM   #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.
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