265 Hemi to efi

[heff0018]

9.84 is the spark reference angle for a 4 cylinder engine. Maybe someone else might be a bit smarter than me but that's possibly a big problem. I'll have a look at the bin file later today. Gotta find the right XDF first.
Just had a quick look and your right it has a spark reference angle of 9.84 degrees. I had a look at a std VR V6 which is what 12P is based on and they use 69.96 which is what you end up with if you type in 70.
I'm not sure if a Hall effect trigger uses a different value to an inductive. That's something I haven't come across and I have no idea how the wrong figure would effect the running on the engine. Specialist brain needed here.
I don't think your program is corrupted. I don't like the tune but it shouldn't stop it starting and running. I'll spend some nore time later today.

thanks Charles, the spark reference was the first thing I chAnged 10 ago and it’s always been fine

[heff0018]

9.84 is the right setting for the camira ignition module!

Thanks for the confirmation

[heff0018]

I too do not believe that your bin file is corrupt, i compared it against one of mine and all the parameters were present, though the values varied.

One thing i though may be on the low side was "SCALAR: Map A: Run A/F Param - Displacement/inj flow rate (Litres/Grams per sec) 0.05 Grams/Sec"

For a quick test possibly change it to "0.10 Grams/Sec" to increase the fuel flow, this being a "global" value.

Thanks will do

[heff0018]

I had a look at one of my tunes 4 cyl using L67 injectors and mine is set at 0.06 so that may correct if he has big injectors. Definately not corrupted. As I said I don't like the tune it looks like it's pouring buckets of fuel in under boost but the tuner would have been using a wideband. Thanks to 202 yes I did find in my notes when using a Camira module set the spark reference angle to 10 deg for all but thanks for the refresher. Old minds don't think as clear as they used to. The tune should start and run as it did before. I'm wondering if the nvram and it's communication channel. Never used one so can't comment on what they do in funny situations. Perhaps burn the tune into a VR V6 memcal and see how it responds. Looks like all the other possibilities have been exhausted without going outside the square to other issues but it must be fuel because it runs on aerostart. Silly thought maybe the intake manifold gasket has slipped blocking the injector spray pattern? When an engine backfires it's either lean or timing but mostly lean.

Thanks for the input. Yes big injectors, the only thing about the aerostart is I have heard is that it’s pretty volatile and is not a definitive test for fuel. I have considered bolting on a carb and finding out for certain.

[heff0018]

I am by no means a gun on any of this, but a quick look shows a few spikes in the ignition maps.
This is the boost ignition map, and there's also one crazy value in the 20 -100 kPa map at 85 kPa 5200 rpm. They could just be typos, and if they are, wouldn't cause the issues you are having.
Boost Igntion Map.PNG

I'm not sure what bin you started with, but there does seem to be a lot of Undefined items using the Difference Tool compared to BLCD.
I could be wrong, happy to be corrected, but if you start again with a new bin from scratch, and just carry over everything that is known, it will only cost you time not parts.

thanks for picking that up, I assume the dyno tuner must have made those errors way back as I haven’t been in there for a long time.

[heff0018]

Thanks for everyone’s replies, it is much appreciated and it appears the tune/bin is ok. I picked up a NOS ELB distributor and will install that as it’s the only ignition component that I haven’t replaced. After that it might be back to a carb to determine if it is a fuel or ignition problem. Cheers

[Charlescrown]

Carby!! What's that? Yes aerostart is very volotile and has been known to blow up Diesel engines but if you control the dose you will find out if it's running better than on petrol. This all started after it sat for some time so you removed the fancy ignition system. I still question the polarity of the two wires coming from the disy to the module. If their reversed it will run like shit. Just try reversing it. You can still make a log with key on engine off then cranking trying to start. a 30 second log may provide the answer. The power going to the ECU (not sure what one) may be dropping too low and causing an issue. I have had that problem and was surprised how it affected the tune.

[heff0018]

Thanks Charles, I reversed the polarity and it wouldn’t fire at all.

I will create the log file on the weekend and hopefully this might uncover something.

[heff0018]

Installed new distributor and no difference.

[delcowizzid]

You have to move the distributor timing when you switch the wires around the timing moves