67 twin turbo dart

[Matts440]

What’s it doing? Just randomly dying after it’s running? If your tooth loggers are showing good and it’s staying in sync state then it’s dropping something else.


One coil won’t make the thing shut off. It would have to loose (I’m guessing here) 3-5 coils before it would just quit.

Its just starting, runs for a few seconds then dies. Will need to do a log with trying to start. I didn't think it was the coils, just outside thinking since I've replaced alot of other things lol. They test out fine, just not sure what else it can be. I'm still so appreciative of you for sending me those. All the regular stuff it panning out good.

 

[Matts440]

Got it to start and run, the secondary ignition timing was on poll setting and switched to raising edge and ran perfect. Such a relieve. Thanks to everyone for all the help and input through this.

 

[Matts440]

New regulator mounted and the afr's were so much more steady over the mallory on mounted on the rail on the passenger side.

 

[subcom]

Got it to start and run, the secondary ignition timing was on poll setting and switched to raising edge and ran perfect. Such a relieve. Thanks to everyone for all the help and input through this.

Good catch Matt and congrats!

 

[Matts440]

Good catch Matt and congrats!

Thanks. It was more of a let's try this sort of thing lol. Funny thing is it ran before this with the poll setting, so not sure what's changed but whatever it runs lol

 

[Matts440]

Well that victory was short lived. Back to doing the same but now getting these yellow gap marking on composite logger. Wonder if my CPS is jumping. Tried changing sensors and even how it picks up back to poll since doing the same thing on raising edge. Thoughts???? Help!!

 

[Matts440]

With the bronze gear could it settle lower and not walk like standard gears. Maybe taking a little off the adapter to make it sit more inside might do the trick. Just spit balling here

 

[subcom]

Looks like a lot of sync loss also. Was this when the motor was ideling?

 

[Matts440]

Looks like a lot of sync loss also. Was this when the motor was ideling?

Nope did the same start run for a few seconds and die and one back fire

 

[Matts440]

Got it to run last night but this morning back to usual. Did pull the cam sensor and the bronze gear. How does the wear pattern look, and the cam sensor looks like it's riding in the groove as it should.

 

[Matts440]

The depth from the the bottom on the adapter to the the oil drive shaft bushing is 4.5". So outside of the car if the cam sensor shaft move just a little up it come out of the slot on the goove. The tail compared to a regular distributor is a tad shorter. Factory measures 3 13/16 and the cam sensor measures 3 11/16. Wonder if that little bit is cauing it to jump i don't know. Just all seems cam related with firing. Don't know if 1/8" would make that big of a difference

 

[Matts440]

Checked the cam sensor itself and getting 5 v at the plug, but when checking the signal wire, half moon out of the field it reads .011 vs and with he field broken reads the 0.00 to 0.02v. Shouldnt it be 5v. Even checked it again another sensor i bought.

 

[Matts440]

Latest composite logger

 

[mpgmike]

Hall effect sensors require a pull-up resistor on the signal wire. The transistor in the Cam sensor either grounds the signal wire or it doesn't. If you don't use a pull-up resistor, you won't be able to see if it's grounding or not.

 

[Matts440]

Did also find that the adapter wasn't sitting right in the block. The oring was stopping it from going down further

 

[subcom]

If the cam sensor was walking out of the groove I’d think that would cause some erratic behavior. Is there anyway to view the half moon lobe on the sensor while turning over the motor with the starter? The composite log looks fine but it’s only showing 4 readings of the cam sensor in your screen shot and some sync loss. They look correctly spaced at least.

 

[Matts440]

If the cam sensor was walking out of the groove I’d think that would cause some erratic behavior. Is there anyway to view the half moon lobe on the sensor while turning over the motor with the starter? The composite log looks fine but it’s only showing 4 readings of the cam sensor in your screen shot and some sync loss. They look correctly spaced at least.

I'll try looking at that, with the adapter installed without thr o ring and just silicone to seal it it feels more solid in the groove. Its odd that it goes from running good no sync loss to alot of sync loss and no run even over night. Powers and grounds all check out on both sensors.

 

[RustyRatRod]

Time for the slant 6.

 

[Matts440]

Time for the slant 6.

Right lol. There have been times where I wish I went blow through carb over injection lol don't have to worry about sensors syncing lol

 

[MadScientistMat]

Just saw yesterday's log and it does show a real issue. Can you post the actual CSV instead of a picture?

 

[Matts440]

Just saw yesterday's log and it does show a real issue. Can you post the actual CSV instead of a picture?

Sorry CSV? I don't know all the abbreviations.

 

[MadScientistMat]

The actual file saved from the composite log.

 

[Matts440]

I will get that uploaded tonight when I get home if it will let me

 

[Matts440]

Not sure if this is gonna work. @MadScientistMat
Microsoft OneDrive

If not I can email it if you want.

 

[subcom]

Not sure if this is gonna work. @MadScientistMat
Microsoft OneDrive

If not I can email it if you want.

That doesn't seem like a valid file Matt.
Try to get a data log and a composite log file. Connect your laptop to the MS3, then select "Data Logging" -> "Start Data Logging" and take note of where it will write the log on your laptop.