265 Hemi to efi

[Holden202T]

yeah nice result man!

[heff0018]

yeah nice result man!

Cheers

[heff0018]

Hi all, I have a no spark issue that is doing my head in. I am going through the Camira engine management ignition system checklist and it step 1A is to disconnect 4 terminal distributor connector and check for spark. Question 1, is this the EST connector to the HEI module, I can’t think what else it could be and Question 2 does the ECM not actually control whether or not a spark is created but only the timing of the spark? If so that would mean that the problem would have to be between the distributor pick up and the coil. I have already replaced the HEI module so ruled that out. Thanks and any input is appreciated.

[Dylan]

Short answer, you should have spark even with the ECU unplugged.

[heff0018]

Short answer, you should have spark even with the ECU unplugged.

Awesome, thanks Dylan. That helps narrow down the problem area.

[delcowizzid]

Yes as long as the coil and ignition module have power you should have spark at 10 degrees

[heff0018]

Yes as long as the coil and ignition module have power you should have spark at 10 degrees

Thanks mate, I am going to put the stock Camira coil back in and bypass the FAST CDI. What I don’t understand is the CDI status LED lights up when the ignition is on so it’s getting 12v but the LED doesn’t blink during cranking which means it is not receiving a trigger signal. I got the distributor checked and it puts out voltage while spinning so it should be turning the module on. Strange.

[heff0018]

Thanks Dylan & Delcowizzid for your help, it was the CDI unit. I put the stock Camira coil back in and got spark straight away. Now I have a different problem and I assume it is fuel related. I changed plugs and checked the timing and ok. It coughs and splutters on crank and then after a while fires but revs out like I have my foot to the floor so I switch it off. I checked the throttle cable and it doesn’t seem to be sticking.

[antus]

If it revs too high that's signs of an air leak. If the throttle is closed it must be getting in somewhere else.

[heff0018]

If it revs too high that's signs of an air leak. If the throttle is closed it must be getting in somewhere else.

Thanks Antus, I rechecked the throttle spring and discovered it wasn’t always returning to the idle stop. I wd40’d the spring etc and it seems to have freed it up. I tried to get it running today but i ran the battery flat. It caught a couple of times but I am pretty sure it’s not getting a constant supply of fuel.