Unknown crank sensor error

Discuss which Sensors work best with these ECUs and share how you are using inputs and outputs
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: Unknown crank sensor error

Post by Alex DTA »

Cam sensors aren't great at cranking speeds.
Make sure the sequential injection only starts above say 1500 RPM.
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: Unknown crank sensor error

Post by stevieturbo »

c2turbo wrote:So I have change the way way I am picking up the cam input and it seems to be more stable with only one pulse per rotation. attached is the crank diag .
what is the best way to determine the cam sensor position in Degrees ?
What should I set the flywheel mode to 26 - 34 ?

Alex and Steve thanks for your help, it is great to know that after 10-12 years of having my s80 it is still one of the best choices I made on the car it has been rock solid through out all the changes I have made through the years and the support has been top notch.

Alex I will rewire the ignition circuit to run of the same relay as the primary fuel pump with 12 coils at 5-8 amp per I am a little concerned the pumps are 18 amp draw with a startup draw up to 40 amps but are on separate 70amp relays.

Dave
Only use the fuel pump circuit to trigger your ignition relay. Not actually provide the power for the ignition.

Although IMO once things are running right and tuned, the coils sparking/coughing on startup should be all but gone anyway.
Post Reply