[updated:LAST EDITED ON 19-Jan-02 AT 04:11 PM (EST)]Does anyone know where the knock sensor on a 1993 F-150 302 EFI with automatic transmision would be located???


Thanks

 

You don't have one. They were only on the 4.9 liter.

 

Haynes book says the 4.9 5.0 and 5.8 have them. It says the 7.5L dosen't have one. If the motor dosen't have a knock sensor how does the computer know when to retard the timing?

 

[updated:LAST EDITED ON 23-Jan-02 AT 02:19 AM (EST)]It has a fairly sophisticated map of rpm/O2 sensor/water temperature, and other things to adjust the air/fuel and timing. Most of the map comes from a ton of testing the manufacturers do to cover almost all running conditions. (this assuming your truck has fuel injection)

One of the examples I remember reading is that the fuel injection system on the ZL1 Corvette (I think) was advanced enough that the engine would start within two revolutions down to something like -30deg, all because the fuel injection system/computer knows how much fuel it needs at that temperature to start.