Tach wire

Johndeere9610

Johndeere9610

Ford guy
Joined
Jun 2, 2007
Messages
629
Witch wire is the tach singal wire any one know? trying to make an aftermarket tack work..

98.5 truck

Thank
Rusty
 
The dash gets engine speed from the ECM over the CCD data bus, not a simple tach signal.

Sorry.
 
Rollin Coal said:
:umno: pin 45 out of the ecm, beleive it should be a gry/blk wire
Click to expand...

That would be the wire from the sensor TO THE ECM then. Not a TACH signal to the cluster like he asked for. Because I am right that the dash gets information from the CCD data bus. Not sure where you get your info from.
 
dude, no, just no.

yes the DASH gets the tach signal via CCD.

hes trying to set up an aftermarket tach.

the CKP uses pins 3, 4, and 17

PIN 45 IS THE CKP SIGNAL TO THE PCM FROM THE ECM
 
Rollin Coal said:
dude, no, just no.

yes the DASH gets the tach signal via CCD.

hes trying to set up an aftermarket tach.

the CKP uses pins 3, 4, and 17

PIN 45 IS THE CKP SIGNAL TO THE PCM FROM THE ECM
Click to expand...

Didn't have my schematic in front of me. I see what you are talking about now. I'm not sure what kind of signal comes from pin 45. Give it a try.

By the way Rollin Coal. Try not being so abrasive.
 
blu_by_u said:
Didn't have my schematic in front of me. I see what you are talking about now. I'm not sure what kind of signal comes from pin 45. Give it a try.

By the way Rollin Coal. Try not being so abrasive.
Click to expand...

im an asshole, dont take it personally
 
So you guys are agreeing?
I'm trying to set up and after market tach do you think it will work?
its a p pumped 24
 
try it, i was told for industrail/marine motors its the tach wire, and it matches the wiring for the dodges.
 
i was wondering is ther a way to run a shift lite but still use the factory tach or would i have to buy a tach and a shift lite together. any info would be apprecited
 
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