Quote:
Originally Posted by Laird Scooby
On the contrary, you're missing a problem that most definitely will be there - the B230FT was NOT available in the 740 and requires 48 pulses per turn of the wheel to assess speed correctly.
If it is a non-ABS car, it will give 12 pulses per turn of the wheel, if it has ABS it will give 96 pulses per turn before the converter and 12 after on the back of the instruments.
This will give a false reading to the speed input circuits of the LH2.4 Jetronic ECU.
However, you're right about one thing - the problem won't be there as the OP has decided to go for a bit of mild tuning on the B230E instead so no EFi will be going near this car and therefore no problems.  |
In my understanding the ECU only cares about movement. I feed the B230FT ECU 4 pulses per revolution in the 360, generated in the mechanical speedo and that appears to keep it happy. It doesn't know what gear it is in, so why should it really care?
If you don't feed it any pulses and the throttle is wide open it gets unhappy and punishes you with a super high idle.
Still the use of the speed sensor is unknown, except for keeping idle high until you stop on a cold day. Why it does that noone seems to know.
For speed measurement for the speedo it would be important.