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pcm 3800 fan grounds by johnguzman1212
Started on: 03-17-2015 10:01 PM
Replies: 2 (71 views)
Last post by: johnguzman1212 on 03-18-2015 08:56 PM
johnguzman1212
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Report this Post03-17-2015 10:01 PM Click Here to See the Profile for johnguzman1212Click Here to Email johnguzman1212Send a Private Message to johnguzman1212Edit/Delete MessageReply w/QuoteDirect Link to This Post
ok im doing a 3800sc from a 97 Riviera to a 87 fiero . when the pcm sends a signal to turn on low fan and hi fan is it a ground or 12 volt pos? also when the pcm sends a signal to turn on hi fan(im using two fans) does it turn off the low fan or is there a signal sent to hi and keeps signal to low fan?
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ericjon262
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Report this Post03-18-2015 03:45 AM Click Here to See the Profile for ericjon262Send a Private Message to ericjon262Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by johnguzman1212:

ok im doing a 3800sc from a 97 Riviera to a 87 fiero . when the pcm sends a signal to turn on low fan and hi fan is it a ground or 12 volt pos? also when the pcm sends a signal to turn on hi fan(im using two fans) does it turn off the low fan or is there a signal sent to hi and keeps signal to low fan?


it grounds them. fan run setpoints are adjustable to whatever you want in the PCM. I'm setting one stupid low to run my intercooler pump. Stock, fan 1 kicks on @ 100 C, fan 2 kicks on @ 108 C



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[This message has been edited by ericjon262 (edited 03-18-2015).]

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johnguzman1212
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Report this Post03-18-2015 08:56 PM Click Here to See the Profile for johnguzman1212Click Here to Email johnguzman1212Send a Private Message to johnguzman1212Edit/Delete MessageReply w/QuoteDirect Link to This Post
that will work for me thanks for the pic ill do one like this
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