- Joined
- Jun 2, 2012
- Messages
- 25,363
- Reaction score
- 8,372
- Points
- 113
- Location
- canada
- Vehicle Year
- 1994
- Make / Model
- Ford
- Transmission
- Manual
CKP(crank position) sensor reads a tone ring with 36 "teeth" minus 1, the ring has 1 "tooth" every 10deg(360deg / 36) then 1 missing "tooth" at TDC for #1 piston.
I think that's the same for all Ford CKP sensor setups, engine size wouldn't matter.
So technically it would have 35 pulses per 1 revolution of the crank, but not sure what it's reaction would be without a TDC gap, it might even be the RPM reference.
Yes, Ford TPS is a variable resistor, it gets 5volts from computer and sends back .6-.9volts(under 1 volt) when throttle is closed.
Wide open throttle sends computer above 4.5volts, because this is a variable resistor the computer "learns" closed throttle voltage and WOT voltage, so there are no specific voltages, under 1 volt closed and above 4.5v wide open is range.
I think that's the same for all Ford CKP sensor setups, engine size wouldn't matter.
So technically it would have 35 pulses per 1 revolution of the crank, but not sure what it's reaction would be without a TDC gap, it might even be the RPM reference.
Yes, Ford TPS is a variable resistor, it gets 5volts from computer and sends back .6-.9volts(under 1 volt) when throttle is closed.
Wide open throttle sends computer above 4.5volts, because this is a variable resistor the computer "learns" closed throttle voltage and WOT voltage, so there are no specific voltages, under 1 volt closed and above 4.5v wide open is range.
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