265 Hemi to efi

[Charlescrown]

When you go to play the log click on the mode/message button then scroll down abt 1/3 the page. As soon as you start playing the log it will detect and display the memcal info.

[heff0018]

When you go to play the log click on the mode/message button then scroll down abt 1/3 the page. As soon as you start playing the log it will detect and display the memcal info.

Thanks Charles, maybe I don't have the settings right on this laptop install as I still get nothing. I will check on the connected laptop later.

[heff0018]

Gday all, is there much difference between v112 APNX V6 and the v112 BLCD v6 BIN? I am loading up a fresh bin to the NVRAM and just trying to work out which file to use. Thanks

[Charlescrown]

Most are the same but there are differences in VE and spark tables but shouldn't make any difference for a starting tune. From your log I do see your battery voltage getting quiet low when cranking so maybe a booster or good charge before trying again. I don't know what's going on with RPM with massive spikes over 9000rpm. Possible interference.

[Charlescrown]

Just a thought. Have a look at the pic. All those dissy's have a small mark to indicate where the reluctor and pickup coil should be when on N0 1 TDC. The rotor button should be pointing at the mark. It's a 4 cyl dissy but their all the same. Reason is I have seen a couple where the reluctor locating dowel has sheared off and the reluctor is free to rotate on the shaft. Grasping at straws now.

[heff0018]

Most are the same but there are differences in VE and spark tables but shouldn't make any difference for a starting tune. From your log I do see your battery voltage getting quiet low when cranking so maybe a booster or good charge before trying again. I don't know what's going on with RPM with massive spikes over 9000rpm. Possible interference.

thanks Charles

[heff0018]

Just a thought. Have a look at the pic. All those dissy's have a small mark to indicate where the reluctor and pickup coil should be when on N0 1 TDC. The rotor button should be pointing at the mark. It's a 4 cyl dissy but their all the same. Reason is I have seen a couple where the reluctor locating dowel has sheared off and the reluctor is free to rotate on the shaft. Grasping at straws now.

Thanks I have lined the rotor up to that mark with the harmonic balancer set at 10 degrees before tdc. This is one thing I am confident of. It’s a new NOS dizzy with the reluctor gap correctly so should have no problems there. I also checked that the coil was getting 12 volts at ignition on and just over 10v on crank but that’s because the battery was going down.

I installed the fresh 2P bin into the NVRAM with Brindo’s help (cheers) and made the minor changes to get it running but still no good. It did fire a couple of times but it didn’t run at all. I tried using starting fluid and it made no difference.

But an interesting observation, I tried to check the base timing in diagnostic mode but there was no constant flash coming from the timing light only very rarely. I put in an inline spark checker and it was flashing as expected. I am pretty sure now that there is something not right with the ignition system.

Cheers

[Holden202T]

ok the first thing i am seeing in this log other than the rpm spikes charles mentions is that the map sensor is on 9.52kpa ... never moves.... i think even if the settings were wrong for the map sensor type you would see some change in the readings when cranking.

[heff0018]

ok the first thing i am seeing in this log other than the rpm spikes charles mentions is that the map sensor is on 9.52kpa ... never moves.... i think even if the settings were wrong for the map sensor type you would see some change in the readings when cranking.

Thanks, I may not have had the boost hooked up to the throttle body. Could this be a reason considering it’s a 3bar sensor?

[vlad01]

The map should be starting at 100kpa or there abouts and drop some amount during cranking. If its like 9.5, that would only be possible under a hard overrun down hill with the throttle closed to even get close to that low Kpa reading, basically a very strong vacuum!

I would be checking out that map sensor. I have seen this sort of failure before in Falcons commonly. They barely can even run and any tiny throttle and they just die, the ECU thinks the car is under a hard vac so basically bugger all fuel is even delivered. But 9.5Kpa in on a whole other level of crazy vacuum, so if that is indeed the real value the ECU is seeing, it wouldn't run due to close to no fuel being commanded.