4l80e swap second connector?
06-19-2006, 11:16 PM
#1
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4l80e swap second connector?
I'm doing a 4L80E swap and got the speartech harness. I didn't even notice until after I mounted the transmission that the second connector has nothing to plug into. There is the main data connector and the two smaller ones. I'm referring to the rear small one. The front sensor plugged in but what does the rear one do?
06-21-2006, 01:12 AM
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My point is there is no sensor there. At the back of the trasnmission there is just a plug, and I have the connector dangling there. Do some 4L80E's not have a second speed sensor?
06-21-2006, 11:02 AM
#5
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06-21-2006, 01:34 PM
#9
Originally Posted by thunder550
Just curious, what is the second one for? If you have a place to plug in all three (two on tranny, one on t-case), does it matter which two you use?
. But that's how I see it, no matter if you are 2wd or 4wd you want a speed sensor on the "input" and one on the "output" of any gearing changes.
06-21-2006, 01:37 PM
#10
Originally Posted by dewmanshu
YES! Plug into the rear sensor of the 80e and you'll get all kinds of driveablility issues, if you plug into the rear with the front clip. The T-case, if you go 4wd low you just changed the ratio of the output. If the rear sensor of the 80 is what you are using then the pcm doesn't see the ratio change for 4wd low. Simplest answer. Apparently on the 4wd's they're other things going on that the pcm wants to see the speed sensor in the t-case, . But that's how I see it, no matter if you are 2wd or 4wd you want a speed sensor on the "input" and one on the "output" of any gearing changes.
. But that's how I see it, no matter if you are 2wd or 4wd you want a speed sensor on the "input" and one on the "output" of any gearing changes.