[Honda RACV control problem]

Hello Scott. I finally managed get my engine running smoothly with my G4 Xtreme, but there's still a fly in the ointment.

I'm trying to use a 3 wire Honda RACV that looks like this: http://i130.photobucket.com/albums/p254/bazwouterze/Honda Civic/DSC00876.jpg

To do this, I set Aux Out 1 to ISC Sol Slave and Aux Out 2 to ISC Solenoid, with a frequency of 500 Hz. With Idle Control in Open loop, nothing that I enter in the Duty Cycle table has any effect. The engine idles really high like the RACV is fully open. I kept changing ISC Solenoid frequency all the way from 20 to 500 Hz, and nothing worked. Connected another RACV that I had lying around to see how the shutter behaved, and for frequencies above 20 Hz, I don't hear or feel the solenoid buzz like it should. Even when it clicks rapidly at 20 Hz, it is unable to control idle.

I have a good mind to fix a 2 wire IACV there, but would really like to run the RACV. Any suggestions?

[No spark on crank. Ignition test runs fine.]

-360 to +360 makes sense. Thanks Scott!

[No spark on crank. Ignition test runs fine.]

Thank you Scott.

I have another question about Trigger Offset.

The label next to the box says Degrees BTDC and looking at the examples provided in the Help file as well as the numbers I've had to punch in, it expects a negative number. I think this is a bit confusing. Wouldn't a negative number BTDC logically mean ATDC? I get a Home pulse 130 crankshaft degrees before Cylinder 1 TDC, so wouldn't 130* BTDC in that box make more sense than -130* BTDC?

[No spark on crank. Ignition test runs fine.]

Update:

 

I managed to get it to work although I don't understand why this happened.

The trigger wheel on the crank has 12 teeth.

Having some experience with Haltech ECUs, I selected Crank in Multi-tooth Posn and entered Tooth Count 24 assuming it was for a complete engine cycle . Figured that I'd have to change that value to 12 because cranking RPM values seemed suspiciously low - around half of what I expected to see. Changed it to 12 and bam!

Still, like I said, I don't understand why the previous setting didn't produce any spark whatsoever. Is there a minimum cranking speed somewhere that caused this?

[No spark on crank. Ignition test runs fine.]

Hello. I just finished wiring up a Silver G4 Xtreme to my Honda D15, converted to COP using K24 ignition coils and verifying connectivity.

Trigger 1 is a VR sensor reading an OE Honda CKF wheel mounted on the crank with 12 evenly spaced teeth.

Trigger 2 is a Hall effect sensor that produces 1 pulse per engine cycle.

Both triggers are being read by the ECU and I can see around 150 RPM displayed when I crank the engine.

However, there is no spark while cranking. I tried to follow the trigger calibration procedure and locked timing to 10* but the timing light wouldn't come on. So I checked with an external spark plug and sure enough there was no spark. When I run ignition tests, every coil operates perfectly fine and there is spark. Am I missing something here?

Attaching the calibration file for your reference.

 

regards,

Venkat

G4 Xtreme D15B Sample.pcl