Help Needed Won't start. Using auto enginuity

[walter.dreyer]

I added it. Please guys don't argue. It won't do me or anyone else any good.

I ran the test again. CMP,CKP are in sync- the value on the real time screen was a 1 in red. However, on the data grid screen it read no, then during cranking it changed to YES.

The Profile Ignition Pickup input read 0- green, Fuel pulse width 2312- green, Calibration voltage reference input 4.96 red although on the data screen it shows 0-5 as in range. Camshaft position sensor level 0-green However live data grid shows low.
Camshaft sensor failure shows No Fault.

Now for some interesting Fault codes. I ran an all codes list and I found these. Under Hybrid Electronic Cluster U1262 SCP(J1850) COMMUNICATION BUS FAULT, U1027 SCP (J1850) Invalid or Missing Data for Engine RPM.

I think its a good thing that I have CMP CKP sync, but this U1262, and U1027 fault have me confused.

 

[walter.dreyer]

By the way I pushed and pulled on the harness wires and ran the cranking test again with no change. I was unable to get one of the covers on the left fenderwell off. So I didn't see any blown fuses. Also all power readings on the scanner show power present. I really took my time and went through the program in depth. I'm still not sure of everything I saw, but I saw all the features. I was surprised that I couldn't find a crankshaft position sensor failure test.

 

[atk]

did you try removing(unplugging) the Banks sixgun system?

when using a tuner/programmer and having problems like yours, always best to return the truck back to stock and go from there....problem may be in the Banks unit?

 

[walter.dreyer]

Yes I thought of that late last night, so all the tests I ran today were with the Banks unit out of the loop. I also figured if it goes to the dealer they're going to disconnect it any way. Although it runs its own checks and gives a green light to show all is OK. Yes it was displaying a green light.

I reread the manual for AE, all the colors indicate is an approximate load value for the sensor indicated. Green 0-80% , Yellow 80-90%, Red 90-100%. So a Red color isn't necessarily bad. You would have to know the normal state of the sensor. It appears the data grid would be a better indicator, as it shows MIN/Max, as well as current values.

Sooo, it appears that all values are normal. Except that it will not buzz the injectors. Not any of them. I realize that its possible to lose them all, all at once, but gotta be highly unlikely. Where do I look next.

 

[DaveBen]

No Buzz test says the FICM is faulty. You should get some codes indicating this if it is the FICM.

Dave

 

[walter.dreyer]

No codes concerning the FICM. It seems that no buzz test is the definitive answer though.

 

[DaveBen]

What happened with my truck was the no start when cold, but if I plugged it in for a couple of hours, it would start. It would start all day after the morning start. Try plugging it in.

Dave

 

[atk]

any news?-popcorn-popcorn-popcorn

FYI....this from a good FICM(mine)

KOEO....FICM logic power-11.48v
FICM main power-48.92v
FICM vehicle power-11.48v
FICM sync.-no
sync. CMP/CKP-no

KOER....FICM logic power-13.48v
FICM main power-48.98v
FICM vehicle power-13.48v
FICM sync.-yes
sync. CMP/CKP-yes

just thought i would pass this along....going try to find some values on the throttle position sensor, as JL stated, seems high....

 

[Zmann ARGH]

does it pass the buzz test? or fail? or what ?

 

[walter.dreyer]

New Ficm, still fails the Buzz test, No Noises what so ever. I'm going to replace the #8 injector to see if it will start to buzz, That way I'll know if its that all the injectors that are bad, or if I need to look somewhere else. That injector tests in a balanced condition anyway.